Company Description Today, Assystem is among the top three independent nuclear engineering firms worldwide. With over 60 years of experience in highly regulated sectors, the group supports public and industrial stakeholders in the execution of complex and strategic infrastructure projects, subject to high safety and security requirements. Assystem mobilizes 8,000 experts in 13 countries and intervenes across the entire project lifecycle, in engineering, project management and digital solutions. Job Description 🚀 Join the Fusion and Modular Nuclear Business Unit! 🚀 Assystem has an exciting opportunity for a Senior Principal Mechanical Engineer to join our expanding Fusion and Modular Nuclear (FMN) business unit. As leaders in the design and development of new technologies, you will have the opportunity to work across multiple cutting-edge projects developing technical solutions making net-zero power generation a reality. Your mission: * Lead and support the development of designs for the following systems: * Personnel Airlocks, Main Equipment Access Hatch, Fuel Transfer Channel, Piping Penetrations, Electrical Penetrations, Specialist Nuclear Doors * Conduct DFMEA (Design Failure Mode and Effects Analysis) to identify and mitigate potential failure modes early in the design process. * Perform HAZID (Hazard Identification Study) to assess and document risks across the system. * Complete and maintain Human Factors Checklists to ensure ergonomics and usability are considered in design decisions. * Update and manage the project’s Risk Register to track, evaluate, and mitigate emerging risks. * Design Package Production in Line with Requirements – Oversee the creation of comprehensive design packages, ensuring alignment with project specifications, technical standards, and operational needs. * Management of Interfaces – Coordinate effectively between engineering teams, suppliers, and stakeholders to ensure seamless integration of cooling water systems with other reactor components. * Preparation of Technical Specifications – Develop clear, detailed technical specifications to guide procurement, fabrication, and installation of key cooling water system components. * Collaborate with cross-functional teams, including both new and existing FTEs and secondees across engineering and project functions. Why Join the Community of Switchers? * 🌟 Over 55 years in nuclear engineering. * 🏆 Ranked among the top 3 largest nuclear engineering companies. * 💼 Attractive social benefits, including an engaging Employee Committee and holiday bonuses. * 📚 Ongoing training with numerous career opportunities. * 📈 70% of our managers are promoted internally! * 🏠 Hybrid work: 1-2 days remote per week. Qualifications * Multi-Disciplinary Team Leadership – Skilled in managing and coordinating diverse engineering teams. * Steam Cycle Modelling Oversight – Ability to define modelling outcomes and ensure accurate implementation. * Project Budget & Lifecycle Planning – Experienced in budgeting and planning for full design lifecycles. * Cooling Water Equipment Expertise – Strong track record in designing and optimizing cooling water systems. * Regulatory & Compliance Knowledge – Well-versed in ONR, Environment Agency, and HSE regulations. * Requirements Capture Experience – Skilled in gathering and defining technical requirements. * Systems Engineering Awareness – Strong understanding of integrated design principles. * Subcontractor Management – Experienced in overseeing and coordinating subcontractors. * Chartered Engineer (CEng) – Professional accreditation in a relevant discipline. * Security Clearance Eligibility – Capable of obtaining SC clearance for secure projects. Additional Information * Excellent communication skills, written and oral * Strong leadership skills * Focus on delivering quality output to time and budget * Act with integrity and instils this in others * Has an appreciation of wider technical issues beyond own discipline – Understands interdisciplinary challenges and their impact on projects. * Ability to work with a high degree of independence, using their own initiative and self-motivation – Proactive and capable of managing tasks autonomously. * Confident in a multi-party, multi-national environment – Comfortable working with global teams and diverse stakeholders. * Ability to travel to Assystem offices and customer sites within the UK * To undertake work packages supporting major UK and international Nuclear Clients – Contributes to high-profile nuclear projects with global impact. Due to the nature of work to be undertaken applicants will be required to meet certain residency criteria in order to attain a minimum level of UK security clearance if not already security cleared to a minimum SC level. NOTICE TO CANDIDATES ON RECRUITMENT FRAUD - We are committed to safeguarding candidates from fraudulent activity associated with our recruitment process. Please note that we will never offer specialist CV writing services, request payment or ask for sensitive personal information during the recruitment process. We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.

Company Description Today, Assystem is among the top three independent nuclear engineering firms worldwide. With over 60 years of experience in highly regulated sectors, the group supports public and industrial stakeholders in the execution of complex and strategic infrastructure projects, subject to high safety and security requirements. Assystem mobilizes 8,000 experts in 13 countries and intervenes across the entire project lifecycle, in engineering, project management and digital solutions. Job Description 🚀 Join the Fusion and Modular Nuclear Business Unit! 🚀 Assystem has an exciting opportunity for a Senior Principal Mechanical Engineer to join our expanding Fusion and Modular Nuclear (FMN) business unit. As leaders in the design and development of new technologies, you will have the opportunity to work across multiple cutting-edge projects developing technical solutions making net-zero power generation a reality. Your mission: * Lead and support the development of designs for the following systems: * Personnel Airlocks, Main Equipment Access Hatch, Fuel Transfer Channel, Piping Penetrations, Electrical Penetrations, Specialist Nuclear Doors * Conduct DFMEA (Design Failure Mode and Effects Analysis) to identify and mitigate potential failure modes early in the design process. * Perform HAZID (Hazard Identification Study) to assess and document risks across the system. * Complete and maintain Human Factors Checklists to ensure ergonomics and usability are considered in design decisions. * Update and manage the project’s Risk Register to track, evaluate, and mitigate emerging risks. * Design Package Production in Line with Requirements – Oversee the creation of comprehensive design packages, ensuring alignment with project specifications, technical standards, and operational needs. * Management of Interfaces – Coordinate effectively between engineering teams, suppliers, and stakeholders to ensure seamless integration of cooling water systems with other reactor components. * Preparation of Technical Specifications – Develop clear, detailed technical specifications to guide procurement, fabrication, and installation of key cooling water system components. * Collaborate with cross-functional teams, including both new and existing FTEs and secondees across engineering and project functions. Why Join the Community of Switchers? * 🌟 Over 55 years in nuclear engineering. * 🏆 Ranked among the top 3 largest nuclear engineering companies. * 💼 Attractive social benefits, including an engaging Employee Committee and holiday bonuses. * 📚 Ongoing training with numerous career opportunities. * 📈 70% of our managers are promoted internally! * 🏠 Hybrid work: 1-2 days remote per week. Qualifications * Multi-Disciplinary Team Leadership – Skilled in managing and coordinating diverse engineering teams. * Steam Cycle Modelling Oversight – Ability to define modelling outcomes and ensure accurate implementation. * Project Budget & Lifecycle Planning – Experienced in budgeting and planning for full design lifecycles. * Cooling Water Equipment Expertise – Strong track record in designing and optimizing cooling water systems. * Regulatory & Compliance Knowledge – Well-versed in ONR, Environment Agency, and HSE regulations. * Requirements Capture Experience – Skilled in gathering and defining technical requirements. * Systems Engineering Awareness – Strong understanding of integrated design principles. * Subcontractor Management – Experienced in overseeing and coordinating subcontractors. * Chartered Engineer (CEng) – Professional accreditation in a relevant discipline. * Security Clearance Eligibility – Capable of obtaining SC clearance for secure projects. Additional Information * Excellent communication skills, written and oral * Strong leadership skills * Focus on delivering quality output to time and budget * Act with integrity and instils this in others * Has an appreciation of wider technical issues beyond own discipline – Understands interdisciplinary challenges and their impact on projects. * Ability to work with a high degree of independence, using their own initiative and self-motivation – Proactive and capable of managing tasks autonomously. * Confident in a multi-party, multi-national environment – Comfortable working with global teams and diverse stakeholders. * Ability to travel to Assystem offices and customer sites within the UK * To undertake work packages supporting major UK and international Nuclear Clients – Contributes to high-profile nuclear projects with global impact. Due to the nature of work to be undertaken applicants will be required to meet certain residency criteria in order to attain a minimum level of UK security clearance if not already security cleared to a minimum SC level. NOTICE TO CANDIDATES ON RECRUITMENT FRAUD - We are committed to safeguarding candidates from fraudulent activity associated with our recruitment process. Please note that we will never offer specialist CV writing services, request payment or ask for sensitive personal information during the recruitment process. We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.

Company Description Today, Assystem is among the top three independent nuclear engineering firms worldwide. With over 60 years of experience in highly regulated sectors, the group supports public and industrial stakeholders in the execution of complex and strategic infrastructure projects, subject to high safety and security requirements. Assystem mobilizes 8,000 experts in 13 countries and intervenes across the entire project lifecycle, in engineering, project management and digital solutions. Job Description 🚀 Join the Fusion and Modular Nuclear Business Unit! 🚀 Assystem has an exciting opportunity for a Senior Principal Mechanical Engineer to join our expanding Fusion and Modular Nuclear (FMN) business unit. As leaders in the design and development of new technologies, you will have the opportunity to work across multiple cutting-edge projects developing technical solutions making net-zero power generation a reality. Your mission: * Lead and support the development of designs for the following systems: * Personnel Airlocks, Main Equipment Access Hatch, Fuel Transfer Channel, Piping Penetrations, Electrical Penetrations, Specialist Nuclear Doors * Conduct DFMEA (Design Failure Mode and Effects Analysis) to identify and mitigate potential failure modes early in the design process. * Perform HAZID (Hazard Identification Study) to assess and document risks across the system. * Complete and maintain Human Factors Checklists to ensure ergonomics and usability are considered in design decisions. * Update and manage the project’s Risk Register to track, evaluate, and mitigate emerging risks. * Design Package Production in Line with Requirements – Oversee the creation of comprehensive design packages, ensuring alignment with project specifications, technical standards, and operational needs. * Management of Interfaces – Coordinate effectively between engineering teams, suppliers, and stakeholders to ensure seamless integration of cooling water systems with other reactor components. * Preparation of Technical Specifications – Develop clear, detailed technical specifications to guide procurement, fabrication, and installation of key cooling water system components. * Collaborate with cross-functional teams, including both new and existing FTEs and secondees across engineering and project functions. Why Join the Community of Switchers? * 🌟 Over 55 years in nuclear engineering. * 🏆 Ranked among the top 3 largest nuclear engineering companies. * 💼 Attractive social benefits, including an engaging Employee Committee and holiday bonuses. * 📚 Ongoing training with numerous career opportunities. * 📈 70% of our managers are promoted internally! * 🏠 Hybrid work: 1-2 days remote per week. Qualifications * Multi-Disciplinary Team Leadership – Skilled in managing and coordinating diverse engineering teams. * Steam Cycle Modelling Oversight – Ability to define modelling outcomes and ensure accurate implementation. * Project Budget & Lifecycle Planning – Experienced in budgeting and planning for full design lifecycles. * Cooling Water Equipment Expertise – Strong track record in designing and optimizing cooling water systems. * Regulatory & Compliance Knowledge – Well-versed in ONR, Environment Agency, and HSE regulations. * Requirements Capture Experience – Skilled in gathering and defining technical requirements. * Systems Engineering Awareness – Strong understanding of integrated design principles. * Subcontractor Management – Experienced in overseeing and coordinating subcontractors. * Chartered Engineer (CEng) – Professional accreditation in a relevant discipline. * Security Clearance Eligibility – Capable of obtaining SC clearance for secure projects. Additional Information * Excellent communication skills, written and oral * Strong leadership skills * Focus on delivering quality output to time and budget * Act with integrity and instils this in others * Has an appreciation of wider technical issues beyond own discipline – Understands interdisciplinary challenges and their impact on projects. * Ability to work with a high degree of independence, using their own initiative and self-motivation – Proactive and capable of managing tasks autonomously. * Confident in a multi-party, multi-national environment – Comfortable working with global teams and diverse stakeholders. * Ability to travel to Assystem offices and customer sites within the UK * To undertake work packages supporting major UK and international Nuclear Clients – Contributes to high-profile nuclear projects with global impact. Due to the nature of work to be undertaken applicants will be required to meet certain residency criteria in order to attain a minimum level of UK security clearance if not already security cleared to a minimum SC level. NOTICE TO CANDIDATES ON RECRUITMENT FRAUD - We are committed to safeguarding candidates from fraudulent activity associated with our recruitment process. Please note that we will never offer specialist CV writing services, request payment or ask for sensitive personal information during the recruitment process. We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.

Company Description Today, Assystem is among the top three independent nuclear engineering firms worldwide. With over 60 years of experience in highly regulated sectors, the group supports public and industrial stakeholders in the execution of complex and strategic infrastructure projects, subject to high safety and security requirements. Assystem mobilizes 8,000 experts in 13 countries and intervenes across the entire project lifecycle, in engineering, project management and digital solutions. Job Description 🚀 Join the Fusion and Modular Nuclear Business Unit! 🚀 Assystem has an exciting opportunity for a Senior Principal Mechanical Engineer to join our expanding Fusion and Modular Nuclear (FMN) business unit. As leaders in the design and development of new technologies, you will have the opportunity to work across multiple cutting-edge projects developing technical solutions making net-zero power generation a reality. Your mission: * Lead and support the development of designs for the following systems: * Personnel Airlocks, Main Equipment Access Hatch, Fuel Transfer Channel, Piping Penetrations, Electrical Penetrations, Specialist Nuclear Doors * Conduct DFMEA (Design Failure Mode and Effects Analysis) to identify and mitigate potential failure modes early in the design process. * Perform HAZID (Hazard Identification Study) to assess and document risks across the system. * Complete and maintain Human Factors Checklists to ensure ergonomics and usability are considered in design decisions. * Update and manage the project’s Risk Register to track, evaluate, and mitigate emerging risks. * Design Package Production in Line with Requirements – Oversee the creation of comprehensive design packages, ensuring alignment with project specifications, technical standards, and operational needs. * Management of Interfaces – Coordinate effectively between engineering teams, suppliers, and stakeholders to ensure seamless integration of cooling water systems with other reactor components. * Preparation of Technical Specifications – Develop clear, detailed technical specifications to guide procurement, fabrication, and installation of key cooling water system components. * Collaborate with cross-functional teams, including both new and existing FTEs and secondees across engineering and project functions. Why Join the Community of Switchers? * 🌟 Over 55 years in nuclear engineering. * 🏆 Ranked among the top 3 largest nuclear engineering companies. * 💼 Attractive social benefits, including an engaging Employee Committee and holiday bonuses. * 📚 Ongoing training with numerous career opportunities. * 📈 70% of our managers are promoted internally! * 🏠 Hybrid work: 1-2 days remote per week. Qualifications * Multi-Disciplinary Team Leadership – Skilled in managing and coordinating diverse engineering teams. * Steam Cycle Modelling Oversight – Ability to define modelling outcomes and ensure accurate implementation. * Project Budget & Lifecycle Planning – Experienced in budgeting and planning for full design lifecycles. * Cooling Water Equipment Expertise – Strong track record in designing and optimizing cooling water systems. * Regulatory & Compliance Knowledge – Well-versed in ONR, Environment Agency, and HSE regulations. * Requirements Capture Experience – Skilled in gathering and defining technical requirements. * Systems Engineering Awareness – Strong understanding of integrated design principles. * Subcontractor Management – Experienced in overseeing and coordinating subcontractors. * Chartered Engineer (CEng) – Professional accreditation in a relevant discipline. * Security Clearance Eligibility – Capable of obtaining SC clearance for secure projects. Additional Information * Excellent communication skills, written and oral * Strong leadership skills * Focus on delivering quality output to time and budget * Act with integrity and instils this in others * Has an appreciation of wider technical issues beyond own discipline – Understands interdisciplinary challenges and their impact on projects. * Ability to work with a high degree of independence, using their own initiative and self-motivation – Proactive and capable of managing tasks autonomously. * Confident in a multi-party, multi-national environment – Comfortable working with global teams and diverse stakeholders. * Ability to travel to Assystem offices and customer sites within the UK * To undertake work packages supporting major UK and international Nuclear Clients – Contributes to high-profile nuclear projects with global impact. Due to the nature of work to be undertaken applicants will be required to meet certain residency criteria in order to attain a minimum level of UK security clearance if not already security cleared to a minimum SC level. NOTICE TO CANDIDATES ON RECRUITMENT FRAUD - We are committed to safeguarding candidates from fraudulent activity associated with our recruitment process. Please note that we will never offer specialist CV writing services, request payment or ask for sensitive personal information during the recruitment process. We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.

Company Description Today, Assystem is among the top three independent nuclear engineering firms worldwide. With over 60 years of experience in highly regulated sectors, the group supports public and industrial stakeholders in the execution of complex and strategic infrastructure projects, subject to high safety and security requirements. Assystem mobilizes 8,000 experts in 13 countries and intervenes across the entire project lifecycle, in engineering, project management and digital solutions. Job Description 🚀 Join the Fusion and Modular Nuclear Business Unit! 🚀Reporting to the Layout Engineering Manager, the Layout Integration Engineer will be responsible for development and delivery of integrated plant layouts across Fusion and Modular Nuclear programmes, including Small Modular Reactors (SMRs), Advanced Modular Reactors (AMRs) and Fusion projects. The role combines plant layout engineering, piping layout, multidisciplinary integration, systems engineering awareness and CAD/BIM capability. The successful candidate will work closely with Process, Mechanical, Electrical, Civil & Structural, Architecture, HVAC, Fire, Human Factors and Systems Engineering disciplines to develop safe, constructable, operable and maintainable plant arrangements. The Layout Integration Engineer will take ownership of assigned systems, buildings or plant areas and drive layout development from concept through detailed design. Key Responsibilities * Own layout development for assigned systems, buildings or plant areas. * Develop integrated equipment, piping, cable tray, access and maintenance layouts. * Interpret and apply PFDs, P&IDs, equipment data sheets, line lists, requirements and engineering constraints. * Capture and manage design assumptions, constraints and interfaces. * Develop layouts within 3D CAD/BIM environments. * Lead piping routing studies and plant integration activities within assigned scope areas. * Act as the primary layout focal point for assigned work packages. * Coordinate design activities across multiple engineering disciplines. * Lead multidisciplinary workshops, model reviews and layout reviews. * Identify clashes, interfaces and design conflicts and drive their resolution. * Ensure layout solutions satisfy system, operational, safety, construction and maintenance requirements. * Produce general arrangements, layout studies and engineering deliverables. * Author technical reports, optioneering studies, design philosophies and engineering recommendations. * Present technical solutions and recommendations to stakeholders. * Support modularisation, construction and maintainability assessments. * Support requirements management and interface management activities. 🌟 Why Apply? Join Assystem and become a key player in delivering critical nuclear projects that shape the future of energy. Embrace this opportunity to excel in a dynamic environment where your expertise and leadership will drive global innovation. Benefits include: * Pension scheme (8% company contribution / 4% personal contribution) * 25 days’ paid annual leave + bank holidays + option to buy or sell days * Professional fees reimbursed * Flexible working * Employee referral scheme Qualifications Essential Skills, Qualifications and Experience * Degree qualified in Mechanical Engineering or related discipline, or equivalent industrial experience. * Experience in plant layout, piping design, plant design or multidisciplinary engineering projects. * Experience within nuclear, power generation, defence, submarine, oil & gas, process plant or other complex engineering environments. * Experience using E3D, PDMS, Plant 3D, Siemens NX, Revit, Inventor or similar CAD/BIM tools. * Experience using Navisworks or equivalent model review software. * Ability to interpret engineering documentation including PFDs and P&IDs. * Understanding of systems engineering principles, requirements management and interface management. * Strong communication and report writing skills. * SC Clearance or capable of achieving it. Desirable Skills and Experience * Experience within the nuclear, fusion, SMR or AMR sectors. * Experience leading plant areas, systems or work packages. * Experience supporting modularisation and construction studies. * Candidates able to demonstrate experience through technical leadership and delivery of complex engineering projects are encouraged to apply. Additional Information We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter! Bring your unique contributions and help us shape the future. NOTICE TO CANDIDATES ON RECRUITMENT FRAUD - We are committed to safeguarding candidates from fraudulent activity associated with our recruitment process. Please note that we will never offer specialist CV writing services, request payment or ask for sensitive personal information during the recruitment process. We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.

Company Description Today, Assystem is among the top three independent nuclear engineering firms worldwide. With over 60 years of experience in highly regulated sectors, the group supports public and industrial stakeholders in the execution of complex and strategic infrastructure projects, subject to high safety and security requirements. Assystem mobilizes 8,000 experts in 13 countries and intervenes across the entire project lifecycle, in engineering, project management and digital solutions. Job Description 🚀 Join the Fusion and Modular Nuclear Business Unit! 🚀Reporting to the Layout Engineering Manager, the Layout Integration Engineer will be responsible for development and delivery of integrated plant layouts across Fusion and Modular Nuclear programmes, including Small Modular Reactors (SMRs), Advanced Modular Reactors (AMRs) and Fusion projects. The role combines plant layout engineering, piping layout, multidisciplinary integration, systems engineering awareness and CAD/BIM capability. The successful candidate will work closely with Process, Mechanical, Electrical, Civil & Structural, Architecture, HVAC, Fire, Human Factors and Systems Engineering disciplines to develop safe, constructable, operable and maintainable plant arrangements. The Layout Integration Engineer will take ownership of assigned systems, buildings or plant areas and drive layout development from concept through detailed design. Key Responsibilities * Own layout development for assigned systems, buildings or plant areas. * Develop integrated equipment, piping, cable tray, access and maintenance layouts. * Interpret and apply PFDs, P&IDs, equipment data sheets, line lists, requirements and engineering constraints. * Capture and manage design assumptions, constraints and interfaces. * Develop layouts within 3D CAD/BIM environments. * Lead piping routing studies and plant integration activities within assigned scope areas. * Act as the primary layout focal point for assigned work packages. * Coordinate design activities across multiple engineering disciplines. * Lead multidisciplinary workshops, model reviews and layout reviews. * Identify clashes, interfaces and design conflicts and drive their resolution. * Ensure layout solutions satisfy system, operational, safety, construction and maintenance requirements. * Produce general arrangements, layout studies and engineering deliverables. * Author technical reports, optioneering studies, design philosophies and engineering recommendations. * Present technical solutions and recommendations to stakeholders. * Support modularisation, construction and maintainability assessments. * Support requirements management and interface management activities. 🌟 Why Apply? Join Assystem and become a key player in delivering critical nuclear projects that shape the future of energy. Embrace this opportunity to excel in a dynamic environment where your expertise and leadership will drive global innovation. Benefits include: * Pension scheme (8% company contribution / 4% personal contribution) * 25 days’ paid annual leave + bank holidays + option to buy or sell days * Professional fees reimbursed * Flexible working * Employee referral scheme Qualifications Essential Skills, Qualifications and Experience * Degree qualified in Mechanical Engineering or related discipline, or equivalent industrial experience. * Experience in plant layout, piping design, plant design or multidisciplinary engineering projects. * Experience within nuclear, power generation, defence, submarine, oil & gas, process plant or other complex engineering environments. * Experience using E3D, PDMS, Plant 3D, Siemens NX, Revit, Inventor or similar CAD/BIM tools. * Experience using Navisworks or equivalent model review software. * Ability to interpret engineering documentation including PFDs and P&IDs. * Understanding of systems engineering principles, requirements management and interface management. * Strong communication and report writing skills. * SC Clearance or capable of achieving it. Desirable Skills and Experience * Experience within the nuclear, fusion, SMR or AMR sectors. * Experience leading plant areas, systems or work packages. * Experience supporting modularisation and construction studies. * Candidates able to demonstrate experience through technical leadership and delivery of complex engineering projects are encouraged to apply. Additional Information We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter! Bring your unique contributions and help us shape the future. NOTICE TO CANDIDATES ON RECRUITMENT FRAUD - We are committed to safeguarding candidates from fraudulent activity associated with our recruitment process. Please note that we will never offer specialist CV writing services, request payment or ask for sensitive personal information during the recruitment process. We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.

Description de l'entreprise Répondre aux défis de la transition énergétique et renforcer notre souveraineté sont des priorités du XXIᵉ siècle. Au cœur de ces enjeux, Assystem accompagne ses clients dans la réalisation de leurs projets les plus stratégiques. Et pour y parvenir, nos 8 000 Switchers mobilisent leur expertise en ingénierie, management de projet et digital. Présents dans 13 pays (Europe, Moyen-Orient, Asie centrale, Amérique du Nord), nous contribuons au développement de nouvelles capacités de production d’électricité nucléaire, au maintien en conditions opérationnelles des installations existantes, ainsi qu'à la conception et à la réalisation d'infrastructures critiques, notamment dans le secteur de la défense. Description du poste Votre future équipe Sous la responsabilité de Ludovic, Responsable de notre bureau d'études, vous êtes moteur dans une équipe spécialisée en systèmes informatisés dans le domaine de l’amélioration de la performance travaillant en étroite collaboration avec d'importants acteurs industriels. Vous participez à la conception et à la réalisation de projets visant au pilotage des procédés de production, au monitoring des installations industrielles et à l’utilisation rationnelle des matières premières et des énergies. Vos missions 🔹 Concevoir et réaliser des applications de type supervision et monitoring à des fins d’usage industriel, en s’appuyant sur des progiciels du marché et en utilisant également des environnements de développement spécifiques. 🔹 Apporter votre expertise en soutien aux autres projets de l’agence et faire évoluer nos standards de programmation. 🔹 Participer à des réponses à appels d’offres en lien avec vos compétences techniques. 🔹 Intégrer la communauté métier système de contrôle-commande et contribuer régulièrement à son évolution. Pourquoi rejoindre la communauté des Switchers ? 💥 Explorez une grande diversité de projets et de métiers au sein d'un groupe solide, vous garantissant des missions stimulantes et variées tout au long de votre parcours. 💥 Profitez d'une véritable dynamique d'évolution avec près de 300 mobilités internes réalisées par an et 70% des managers issus de la promotion interne. 💥 Profitez d’un package social attractif comprenant une couverture santé et prévoyance de qualité, des avantages CSE toute l’année (cinéma, sport, culture, loisirs, vacances…) ainsi qu’un service d’accompagnement gratuit et confidentiel pour vous soutenir dans les moments clés de votre vie personnelle et professionnelle. Qualifications Vos atouts et les prérequis pour réussir 🔹 Diplômé(e) d'une formation technique BAC+2 à BAC+3 (BTS, DUT, BUT, Licence) axée sur l'Informatique industrielle. Le poste est ouvert à un profil confirmé souhaitant évoluer dans le développement d'applications industrielles. 🔹 Vous êtes techniquement à l’aise avec la pratique des progiciels de développement de supervision Panorama, et des environnements de développement de type Visual.NET, base de données relationnelles, etc. 🔹 La maitrise d’une méthodologie de conception de système (UML, MCSE, AGIL …) et des notions de programmation sur automates Schneider et Siemens seraient un atout. 🔹 Vous avez de réelles qualités relationnelles avec le souhait de développer vos compétences techniques et de vous exprimer au sein d’une équipe orientée sur les nouvelles technologies. 🔹 La maîtrise de l'anglais est fortement recommandée pour intervenir dans cet environnement international. Rejoignez-nous pour donner une nouvelle dimension à votre carrière au sein d'une équipe passionnée chez Assystem, où l'excellence et l'innovation sont nos moteurs quotidiens. Envoyez-nous votre candidature dès maintenant pour prendre part à cette aventure professionnelle enrichissante ! Informations supplémentaires Nous nous engageons au respect de l’égalité de traitement entre les candidats, et cultivons toutes les formes de diversité. Chez Assystem, seules les compétences comptent ! Si vous souhaitez porter à la connaissance d’Assystem une quelconque situation ou des besoins spécifiques, n’hésitez pas : vous serez accompagné(e) !

Company Description Today, Assystem is among the top three independent nuclear engineering firms worldwide. With over 60 years of experience in highly regulated sectors, the group supports public and industrial stakeholders in the execution of complex and strategic infrastructure projects, subject to high safety and security requirements. Assystem mobilizes 8,000 experts in 13 countries and intervenes across the entire project lifecycle, in engineering, project management and digital solutions. Job Description 🚀 Join the Fusion and Modular Nuclear Business Unit! 🚀Reporting to the Layout Engineering Manager, the Layout Integration Engineer will be responsible for development and delivery of integrated plant layouts across Fusion and Modular Nuclear programmes, including Small Modular Reactors (SMRs), Advanced Modular Reactors (AMRs) and Fusion projects. The role combines plant layout engineering, piping layout, multidisciplinary integration, systems engineering awareness and CAD/BIM capability. The successful candidate will work closely with Process, Mechanical, Electrical, Civil & Structural, Architecture, HVAC, Fire, Human Factors and Systems Engineering disciplines to develop safe, constructable, operable and maintainable plant arrangements. The Layout Integration Engineer will take ownership of assigned systems, buildings or plant areas and drive layout development from concept through detailed design. Key Responsibilities * Own layout development for assigned systems, buildings or plant areas. * Develop integrated equipment, piping, cable tray, access and maintenance layouts. * Interpret and apply PFDs, P&IDs, equipment data sheets, line lists, requirements and engineering constraints. * Capture and manage design assumptions, constraints and interfaces. * Develop layouts within 3D CAD/BIM environments. * Lead piping routing studies and plant integration activities within assigned scope areas. * Act as the primary layout focal point for assigned work packages. * Coordinate design activities across multiple engineering disciplines. * Lead multidisciplinary workshops, model reviews and layout reviews. * Identify clashes, interfaces and design conflicts and drive their resolution. * Ensure layout solutions satisfy system, operational, safety, construction and maintenance requirements. * Produce general arrangements, layout studies and engineering deliverables. * Author technical reports, optioneering studies, design philosophies and engineering recommendations. * Present technical solutions and recommendations to stakeholders. * Support modularisation, construction and maintainability assessments. * Support requirements management and interface management activities. 🌟 Why Apply? Join Assystem and become a key player in delivering critical nuclear projects that shape the future of energy. Embrace this opportunity to excel in a dynamic environment where your expertise and leadership will drive global innovation. Benefits include: * Pension scheme (8% company contribution / 4% personal contribution) * 25 days’ paid annual leave + bank holidays + option to buy or sell days * Professional fees reimbursed * Flexible working * Employee referral scheme Qualifications Essential Skills, Qualifications and Experience * Degree qualified in Mechanical Engineering or related discipline, or equivalent industrial experience. * Experience in plant layout, piping design, plant design or multidisciplinary engineering projects. * Experience within nuclear, power generation, defence, submarine, oil & gas, process plant or other complex engineering environments. * Experience using E3D, PDMS, Plant 3D, Siemens NX, Revit, Inventor or similar CAD/BIM tools. * Experience using Navisworks or equivalent model review software. * Ability to interpret engineering documentation including PFDs and P&IDs. * Understanding of systems engineering principles, requirements management and interface management. * Strong communication and report writing skills. * SC Clearance or capable of achieving it. Desirable Skills and Experience * Experience within the nuclear, fusion, SMR or AMR sectors. * Experience leading plant areas, systems or work packages. * Experience supporting modularisation and construction studies. * Candidates able to demonstrate experience through technical leadership and delivery of complex engineering projects are encouraged to apply. Additional Information We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter! Bring your unique contributions and help us shape the future. NOTICE TO CANDIDATES ON RECRUITMENT FRAUD - We are committed to safeguarding candidates from fraudulent activity associated with our recruitment process. Please note that we will never offer specialist CV writing services, request payment or ask for sensitive personal information during the recruitment process. We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.

Company Description Today, Assystem is among the top three independent nuclear engineering firms worldwide. With over 60 years of experience in highly regulated sectors, the group supports public and industrial stakeholders in the execution of complex and strategic infrastructure projects, subject to high safety and security requirements. Assystem mobilizes 8,000 experts in 13 countries and intervenes across the entire project lifecycle, in engineering, project management and digital solutions. Job Description 🚀 Join the Fusion and Modular Nuclear Business Unit! 🚀Reporting to the Layout Engineering Manager, the Layout Integration Engineer will be responsible for development and delivery of integrated plant layouts across Fusion and Modular Nuclear programmes, including Small Modular Reactors (SMRs), Advanced Modular Reactors (AMRs) and Fusion projects. The role combines plant layout engineering, piping layout, multidisciplinary integration, systems engineering awareness and CAD/BIM capability. The successful candidate will work closely with Process, Mechanical, Electrical, Civil & Structural, Architecture, HVAC, Fire, Human Factors and Systems Engineering disciplines to develop safe, constructable, operable and maintainable plant arrangements. The Layout Integration Engineer will take ownership of assigned systems, buildings or plant areas and drive layout development from concept through detailed design. Key Responsibilities * Own layout development for assigned systems, buildings or plant areas. * Develop integrated equipment, piping, cable tray, access and maintenance layouts. * Interpret and apply PFDs, P&IDs, equipment data sheets, line lists, requirements and engineering constraints. * Capture and manage design assumptions, constraints and interfaces. * Develop layouts within 3D CAD/BIM environments. * Lead piping routing studies and plant integration activities within assigned scope areas. * Act as the primary layout focal point for assigned work packages. * Coordinate design activities across multiple engineering disciplines. * Lead multidisciplinary workshops, model reviews and layout reviews. * Identify clashes, interfaces and design conflicts and drive their resolution. * Ensure layout solutions satisfy system, operational, safety, construction and maintenance requirements. * Produce general arrangements, layout studies and engineering deliverables. * Author technical reports, optioneering studies, design philosophies and engineering recommendations. * Present technical solutions and recommendations to stakeholders. * Support modularisation, construction and maintainability assessments. * Support requirements management and interface management activities. 🌟 Why Apply? Join Assystem and become a key player in delivering critical nuclear projects that shape the future of energy. Embrace this opportunity to excel in a dynamic environment where your expertise and leadership will drive global innovation. Benefits include: * Pension scheme (8% company contribution / 4% personal contribution) * 25 days’ paid annual leave + bank holidays + option to buy or sell days * Professional fees reimbursed * Flexible working * Employee referral scheme Qualifications Essential Skills, Qualifications and Experience * Degree qualified in Mechanical Engineering or related discipline, or equivalent industrial experience. * Experience in plant layout, piping design, plant design or multidisciplinary engineering projects. * Experience within nuclear, power generation, defence, submarine, oil & gas, process plant or other complex engineering environments. * Experience using E3D, PDMS, Plant 3D, Siemens NX, Revit, Inventor or similar CAD/BIM tools. * Experience using Navisworks or equivalent model review software. * Ability to interpret engineering documentation including PFDs and P&IDs. * Understanding of systems engineering principles, requirements management and interface management. * Strong communication and report writing skills. * SC Clearance or capable of achieving it. Desirable Skills and Experience * Experience within the nuclear, fusion, SMR or AMR sectors. * Experience leading plant areas, systems or work packages. * Experience supporting modularisation and construction studies. * Candidates able to demonstrate experience through technical leadership and delivery of complex engineering projects are encouraged to apply. Additional Information We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter! Bring your unique contributions and help us shape the future. NOTICE TO CANDIDATES ON RECRUITMENT FRAUD - We are committed to safeguarding candidates from fraudulent activity associated with our recruitment process. Please note that we will never offer specialist CV writing services, request payment or ask for sensitive personal information during the recruitment process. We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.

Company Description Today, Assystem is among the top three independent nuclear engineering firms worldwide. With over 60 years of experience in highly regulated sectors, the group supports public and industrial stakeholders in the execution of complex and strategic infrastructure projects, subject to high safety and security requirements. Assystem mobilizes 8,000 experts in 13 countries and intervenes across the entire project lifecycle, in engineering, project management and digital solutions. Job Description 🚀 Join the Fusion and Modular Nuclear Business Unit! 🚀Reporting to the Layout Engineering Manager, the Layout Integration Engineer will be responsible for development and delivery of integrated plant layouts across Fusion and Modular Nuclear programmes, including Small Modular Reactors (SMRs), Advanced Modular Reactors (AMRs) and Fusion projects. The role combines plant layout engineering, piping layout, multidisciplinary integration, systems engineering awareness and CAD/BIM capability. The successful candidate will work closely with Process, Mechanical, Electrical, Civil & Structural, Architecture, HVAC, Fire, Human Factors and Systems Engineering disciplines to develop safe, constructable, operable and maintainable plant arrangements. The Layout Integration Engineer will take ownership of assigned systems, buildings or plant areas and drive layout development from concept through detailed design. Key Responsibilities * Own layout development for assigned systems, buildings or plant areas. * Develop integrated equipment, piping, cable tray, access and maintenance layouts. * Interpret and apply PFDs, P&IDs, equipment data sheets, line lists, requirements and engineering constraints. * Capture and manage design assumptions, constraints and interfaces. * Develop layouts within 3D CAD/BIM environments. * Lead piping routing studies and plant integration activities within assigned scope areas. * Act as the primary layout focal point for assigned work packages. * Coordinate design activities across multiple engineering disciplines. * Lead multidisciplinary workshops, model reviews and layout reviews. * Identify clashes, interfaces and design conflicts and drive their resolution. * Ensure layout solutions satisfy system, operational, safety, construction and maintenance requirements. * Produce general arrangements, layout studies and engineering deliverables. * Author technical reports, optioneering studies, design philosophies and engineering recommendations. * Present technical solutions and recommendations to stakeholders. * Support modularisation, construction and maintainability assessments. * Support requirements management and interface management activities. 🌟 Why Apply? Join Assystem and become a key player in delivering critical nuclear projects that shape the future of energy. Embrace this opportunity to excel in a dynamic environment where your expertise and leadership will drive global innovation. Benefits include: * Pension scheme (8% company contribution / 4% personal contribution) * 25 days’ paid annual leave + bank holidays + option to buy or sell days * Professional fees reimbursed * Flexible working * Employee referral scheme Qualifications Essential Skills, Qualifications and Experience * Degree qualified in Mechanical Engineering or related discipline, or equivalent industrial experience. * Experience in plant layout, piping design, plant design or multidisciplinary engineering projects. * Experience within nuclear, power generation, defence, submarine, oil & gas, process plant or other complex engineering environments. * Experience using E3D, PDMS, Plant 3D, Siemens NX, Revit, Inventor or similar CAD/BIM tools. * Experience using Navisworks or equivalent model review software. * Ability to interpret engineering documentation including PFDs and P&IDs. * Understanding of systems engineering principles, requirements management and interface management. * Strong communication and report writing skills. * SC Clearance or capable of achieving it. Desirable Skills and Experience * Experience within the nuclear, fusion, SMR or AMR sectors. * Experience leading plant areas, systems or work packages. * Experience supporting modularisation and construction studies. * Candidates able to demonstrate experience through technical leadership and delivery of complex engineering projects are encouraged to apply. Additional Information We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter! Bring your unique contributions and help us shape the future. NOTICE TO CANDIDATES ON RECRUITMENT FRAUD - We are committed to safeguarding candidates from fraudulent activity associated with our recruitment process. Please note that we will never offer specialist CV writing services, request payment or ask for sensitive personal information during the recruitment process. We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.