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 Principal Stress Engineer / Technical Lead 📍Location: Newcastle, Derby, Bristol, Bolton, London, Glasgow, Warrington 🚀 Join the Fusion and Modular Nuclear Business Unit! 🚀 Assystem’s Fusion and Modular Nuclear team are working on some of the most projects in the UK. Our Simulation and Assessment team of stress engineers support these projects by producing design and regulatory justification assessments of high-integrity and safety critical components to international codes and standard such as RCC-M or ASME III. We are seeking a Principal Stress Engineer role who will lead the scoping, bidding and delivery of stress engineering work packages, and building and leading a team to deliver this work. * Lead bids and projects * Develop future technical leaders * Plan capability, resourcing and business wining alongside our leadership team Your Mission: 1. Technical Delivery You will lead project teams and technical work in client facing roles, delivering high-quality stress analysis and structural integrity assessments: * Act as a technical lead for stress and structural integrity, providing expert advice, troubleshooting, and technical oversight. * Represent Assystem in client meetings. * Serve as an Independent Technical Approver to ensure the highest engineering standards. * Use Finite Element Analysis and traditional hand calculations to justify strength, fatigue, defect tolerance, and structural performance to international codes and standards (including pressure vessel and defect-tolerance codes). * Collaborate closely with safety case authors, design engineers, and multidisciplinary delivery teams. * Mentor junior engineers, offering technical guidance and helping shape our next generation of stress specialists. 2. Capability Development Your role will play an important part in developing and growing Assystem’s internal stress capability: Capability Development * Support the strategic development roadmap for the UK stress engineering capability. * Maintain and improve technical processes, methods, best-practice guides and quality frameworks. * Monitor workload, skill gaps and training needs across the stress discipline. * Lead technical upskilling initiatives such as internal training pathways. Team Growth, Recruitment & Retention * Work with the Engineering Directors and Business Management teams to forecast demand, plan workforce requirements, and shape the long-term capability pipeline. * Support recruitment campaigns, interviewing and selecting high-quality candidates. * Ensure strong retention by fostering a supportive culture, mentoring talent, and providing growth opportunities. Bidding & Business Development * Collaborate with Sales and Business Development teams to identify opportunities where stress capability adds value. * Lead bids, proposals, client presentations and technical sales materials. * Represent stress capability in major pursuits and innovation initiatives. Internal & External Leadership * Act as a visible leader and ambassador for stress engineering across Assystem and with clients. * Build and maintain relationships with key technical stakeholders, partners and industry bodies. 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 We Want Someone Who Can… * Lead high-performing teams supporting a range of customers and industry sectors. * Lead stress and structural integrity assessment projects using modern techniques. * Deliver and review high-quality technical assessments to recognised standards. * Mentor and guide junior engineers while acting as a senior technical reference point. * Work directly with clients to tackle complex stress and integrity challenges. * Demonstrate expert FE analysis capability (strength, fatigue, defects, lifetime assessments). * Apply ASME III / ASME VIII, RCC-M, R6 codes. * Desirable: experience in CFD, dynamics, fatigue, and degradation mechanisms. * Must have experience in the nuclear sector or a comparable highly regulated sector. Your Toolbox Should Include… * Degree in engineering + Chartered Engineer (CEng). * Experience in stress assessments in the nuclear sector. * Strong communicator with excellent commercial awareness. * Expert in ABAQUS (or ANSYS, LS-Dyna, etc.). * Experience with Altair Hyperworks or similar tools. * Familiarity with code assessments (e.g. ASME III, ASME VIII, RCC-M, PD5500, R6). * Coding and scripting using languages such as Python. * Knowledge of manufacturing methods, materials, and inspection techniques. 🚀 Not a perfect match? Let’s talk anyway—we’re open to developing the right talent. Additional Information Security Clearance This role requires the successful candidate to hold (or be able to obtain) Security Check (SC) clearance without any caveats. We are committed to equal treatment and fostering diversity. Skills, talent, and the courage to innovate are what matter most. 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 Principal Stress Engineer / Technical Lead 📍Location: Newcastle, Derby, Bristol, Bolton, London, Glasgow, Warrington 🚀 Join the Fusion and Modular Nuclear Business Unit! 🚀 Assystem’s Fusion and Modular Nuclear team are working on some of the most projects in the UK. Our Simulation and Assessment team of stress engineers support these projects by producing design and regulatory justification assessments of high-integrity and safety critical components to international codes and standard such as RCC-M or ASME III. We are seeking a Principal Stress Engineer role who will lead the scoping, bidding and delivery of stress engineering work packages, and building and leading a team to deliver this work. * Lead bids and projects * Develop future technical leaders * Plan capability, resourcing and business wining alongside our leadership team Your Mission: 1. Technical Delivery You will lead project teams and technical work in client facing roles, delivering high-quality stress analysis and structural integrity assessments: * Act as a technical lead for stress and structural integrity, providing expert advice, troubleshooting, and technical oversight. * Represent Assystem in client meetings. * Serve as an Independent Technical Approver to ensure the highest engineering standards. * Use Finite Element Analysis and traditional hand calculations to justify strength, fatigue, defect tolerance, and structural performance to international codes and standards (including pressure vessel and defect-tolerance codes). * Collaborate closely with safety case authors, design engineers, and multidisciplinary delivery teams. * Mentor junior engineers, offering technical guidance and helping shape our next generation of stress specialists. 2. Capability Development Your role will play an important part in developing and growing Assystem’s internal stress capability: Capability Development * Support the strategic development roadmap for the UK stress engineering capability. * Maintain and improve technical processes, methods, best-practice guides and quality frameworks. * Monitor workload, skill gaps and training needs across the stress discipline. * Lead technical upskilling initiatives such as internal training pathways. Team Growth, Recruitment & Retention * Work with the Engineering Directors and Business Management teams to forecast demand, plan workforce requirements, and shape the long-term capability pipeline. * Support recruitment campaigns, interviewing and selecting high-quality candidates. * Ensure strong retention by fostering a supportive culture, mentoring talent, and providing growth opportunities. Bidding & Business Development * Collaborate with Sales and Business Development teams to identify opportunities where stress capability adds value. * Lead bids, proposals, client presentations and technical sales materials. * Represent stress capability in major pursuits and innovation initiatives. Internal & External Leadership * Act as a visible leader and ambassador for stress engineering across Assystem and with clients. * Build and maintain relationships with key technical stakeholders, partners and industry bodies. 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 We Want Someone Who Can… * Lead high-performing teams supporting a range of customers and industry sectors. * Lead stress and structural integrity assessment projects using modern techniques. * Deliver and review high-quality technical assessments to recognised standards. * Mentor and guide junior engineers while acting as a senior technical reference point. * Work directly with clients to tackle complex stress and integrity challenges. * Demonstrate expert FE analysis capability (strength, fatigue, defects, lifetime assessments). * Apply ASME III / ASME VIII, RCC-M, R6 codes. * Desirable: experience in CFD, dynamics, fatigue, and degradation mechanisms. * Must have experience in the nuclear sector or a comparable highly regulated sector. Your Toolbox Should Include… * Degree in engineering + Chartered Engineer (CEng). * Experience in stress assessments in the nuclear sector. * Strong communicator with excellent commercial awareness. * Expert in ABAQUS (or ANSYS, LS-Dyna, etc.). * Experience with Altair Hyperworks or similar tools. * Familiarity with code assessments (e.g. ASME III, ASME VIII, RCC-M, PD5500, R6). * Coding and scripting using languages such as Python. * Knowledge of manufacturing methods, materials, and inspection techniques. 🚀 Not a perfect match? Let’s talk anyway—we’re open to developing the right talent. Additional Information Security Clearance This role requires the successful candidate to hold (or be able to obtain) Security Check (SC) clearance without any caveats. We are committed to equal treatment and fostering diversity. Skills, talent, and the courage to innovate are what matter most. 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 Principal Stress Engineer / Technical Lead 📍Location: Newcastle, Derby, Bristol, Bolton, London, Glasgow, Warrington 🚀 Join the Fusion and Modular Nuclear Business Unit! 🚀 Assystem’s Fusion and Modular Nuclear team are working on some of the most projects in the UK. Our Simulation and Assessment team of stress engineers support these projects by producing design and regulatory justification assessments of high-integrity and safety critical components to international codes and standard such as RCC-M or ASME III. We are seeking a Principal Stress Engineer role who will lead the scoping, bidding and delivery of stress engineering work packages, and building and leading a team to deliver this work. * Lead bids and projects * Develop future technical leaders * Plan capability, resourcing and business wining alongside our leadership team Your Mission: 1. Technical Delivery You will lead project teams and technical work in client facing roles, delivering high-quality stress analysis and structural integrity assessments: * Act as a technical lead for stress and structural integrity, providing expert advice, troubleshooting, and technical oversight. * Represent Assystem in client meetings. * Serve as an Independent Technical Approver to ensure the highest engineering standards. * Use Finite Element Analysis and traditional hand calculations to justify strength, fatigue, defect tolerance, and structural performance to international codes and standards (including pressure vessel and defect-tolerance codes). * Collaborate closely with safety case authors, design engineers, and multidisciplinary delivery teams. * Mentor junior engineers, offering technical guidance and helping shape our next generation of stress specialists. 2. Capability Development Your role will play an important part in developing and growing Assystem’s internal stress capability: Capability Development * Support the strategic development roadmap for the UK stress engineering capability. * Maintain and improve technical processes, methods, best-practice guides and quality frameworks. * Monitor workload, skill gaps and training needs across the stress discipline. * Lead technical upskilling initiatives such as internal training pathways. Team Growth, Recruitment & Retention * Work with the Engineering Directors and Business Management teams to forecast demand, plan workforce requirements, and shape the long-term capability pipeline. * Support recruitment campaigns, interviewing and selecting high-quality candidates. * Ensure strong retention by fostering a supportive culture, mentoring talent, and providing growth opportunities. Bidding & Business Development * Collaborate with Sales and Business Development teams to identify opportunities where stress capability adds value. * Lead bids, proposals, client presentations and technical sales materials. * Represent stress capability in major pursuits and innovation initiatives. Internal & External Leadership * Act as a visible leader and ambassador for stress engineering across Assystem and with clients. * Build and maintain relationships with key technical stakeholders, partners and industry bodies. 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 We Want Someone Who Can… * Lead high-performing teams supporting a range of customers and industry sectors. * Lead stress and structural integrity assessment projects using modern techniques. * Deliver and review high-quality technical assessments to recognised standards. * Mentor and guide junior engineers while acting as a senior technical reference point. * Work directly with clients to tackle complex stress and integrity challenges. * Demonstrate expert FE analysis capability (strength, fatigue, defects, lifetime assessments). * Apply ASME III / ASME VIII, RCC-M, R6 codes. * Desirable: experience in CFD, dynamics, fatigue, and degradation mechanisms. * Must have experience in the nuclear sector or a comparable highly regulated sector. Your Toolbox Should Include… * Degree in engineering + Chartered Engineer (CEng). * Experience in stress assessments in the nuclear sector. * Strong communicator with excellent commercial awareness. * Expert in ABAQUS (or ANSYS, LS-Dyna, etc.). * Experience with Altair Hyperworks or similar tools. * Familiarity with code assessments (e.g. ASME III, ASME VIII, RCC-M, PD5500, R6). * Coding and scripting using languages such as Python. * Knowledge of manufacturing methods, materials, and inspection techniques. 🚀 Not a perfect match? Let’s talk anyway—we’re open to developing the right talent. Additional Information Security Clearance This role requires the successful candidate to hold (or be able to obtain) Security Check (SC) clearance without any caveats. We are committed to equal treatment and fostering diversity. Skills, talent, and the courage to innovate are what matter most. 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! 🚀Drive the cutting-edge design and development of Electrical Systems for the revolutionary SMR nuclear power plant! From defining system architecture to selecting and specifying high-performance equipment, you’ll play a key role in delivering a fully verified, world-class power station. Collaborate with top engineering teams across the project and apply a structured systems engineering approach to bring innovative electrical solutions to life. Your mission: * Define & Manage Requirements – Review, refine, and document high-level electrical requirements, ensuring they are testable and align with project needs. Capture constraints, interfaces, and quality attributes using structured processes (e.g., IBM DOORS). * Design, Analyze & Verify – Develop and implement robust electrical system/component designs that meet project specifications. Conduct functional analysis, modeling, and simulation to validate performance. Define and execute verification activities in collaboration with the Verification team, ensuring compliance through rigorous testing. * Ensure Compliance & Quality – Maintain engineering excellence throughout the SMR project lifecycle. Conduct technical reviews, provide key inputs to project technical review gates, and ensure designs meet regulatory and safety standards. * Support Strategy & Risk Management – Participate in capacity planning and contribute to long-term strategic goals. Identify potential risks, implement mitigation strategies, and support decision-making to enhance project success. * Develop & Share Knowledge – Establish and maintain policies, procedures, and best practices. Develop training materials and tools to support knowledge sharing across teams. Provide expert advice to project teams and integrated product teams (IPT). * Collaborate & Represent – Work closely with internal engineering teams to drive standardization and a commoditized approach to system and component development. Represent the electrical engineering function in meetings, working groups, and external engagements with regulators, customers, and suppliers. 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 Essential Experience: * Proven experience in building electrical services design * Expertise in space management, cable routing, and cable management * Strong team player with the ability to work independently under tight deadlines * Excellent communication and interpersonal skills * Degree in a relevant discipline Additional Information Additional Information: * BPSS and SC required * Ability to travel Assystem offices and customer sites within UK. * To undertake work packages supporting major UK and international Nuclear Clients. * Previous experience in electrical power generation or the nuclear sector an advantage 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! 🚀Drive the cutting-edge design and development of Electrical Systems for the revolutionary SMR nuclear power plant! From defining system architecture to selecting and specifying high-performance equipment, you’ll play a key role in delivering a fully verified, world-class power station. Collaborate with top engineering teams across the project and apply a structured systems engineering approach to bring innovative electrical solutions to life. Your mission: * Define & Manage Requirements – Review, refine, and document high-level electrical requirements, ensuring they are testable and align with project needs. Capture constraints, interfaces, and quality attributes using structured processes (e.g., IBM DOORS). * Design, Analyze & Verify – Develop and implement robust electrical system/component designs that meet project specifications. Conduct functional analysis, modeling, and simulation to validate performance. Define and execute verification activities in collaboration with the Verification team, ensuring compliance through rigorous testing. * Ensure Compliance & Quality – Maintain engineering excellence throughout the SMR project lifecycle. Conduct technical reviews, provide key inputs to project technical review gates, and ensure designs meet regulatory and safety standards. * Support Strategy & Risk Management – Participate in capacity planning and contribute to long-term strategic goals. Identify potential risks, implement mitigation strategies, and support decision-making to enhance project success. * Develop & Share Knowledge – Establish and maintain policies, procedures, and best practices. Develop training materials and tools to support knowledge sharing across teams. Provide expert advice to project teams and integrated product teams (IPT). * Collaborate & Represent – Work closely with internal engineering teams to drive standardization and a commoditized approach to system and component development. Represent the electrical engineering function in meetings, working groups, and external engagements with regulators, customers, and suppliers. 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 Essential Experience: * Proven experience in building electrical services design * Expertise in space management, cable routing, and cable management * Strong team player with the ability to work independently under tight deadlines * Excellent communication and interpersonal skills * Degree in a relevant discipline Additional Information Additional Information: * BPSS and SC required * Ability to travel Assystem offices and customer sites within UK. * To undertake work packages supporting major UK and international Nuclear Clients. * Previous experience in electrical power generation or the nuclear sector an advantage 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! 🚀Drive the cutting-edge design and development of Electrical Systems for the revolutionary SMR nuclear power plant! From defining system architecture to selecting and specifying high-performance equipment, you’ll play a key role in delivering a fully verified, world-class power station. Collaborate with top engineering teams across the project and apply a structured systems engineering approach to bring innovative electrical solutions to life. Your mission: * Define & Manage Requirements – Review, refine, and document high-level electrical requirements, ensuring they are testable and align with project needs. Capture constraints, interfaces, and quality attributes using structured processes (e.g., IBM DOORS). * Design, Analyze & Verify – Develop and implement robust electrical system/component designs that meet project specifications. Conduct functional analysis, modeling, and simulation to validate performance. Define and execute verification activities in collaboration with the Verification team, ensuring compliance through rigorous testing. * Ensure Compliance & Quality – Maintain engineering excellence throughout the SMR project lifecycle. Conduct technical reviews, provide key inputs to project technical review gates, and ensure designs meet regulatory and safety standards. * Support Strategy & Risk Management – Participate in capacity planning and contribute to long-term strategic goals. Identify potential risks, implement mitigation strategies, and support decision-making to enhance project success. * Develop & Share Knowledge – Establish and maintain policies, procedures, and best practices. Develop training materials and tools to support knowledge sharing across teams. Provide expert advice to project teams and integrated product teams (IPT). * Collaborate & Represent – Work closely with internal engineering teams to drive standardization and a commoditized approach to system and component development. Represent the electrical engineering function in meetings, working groups, and external engagements with regulators, customers, and suppliers. 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 Essential Experience: * Proven experience in building electrical services design * Expertise in space management, cable routing, and cable management * Strong team player with the ability to work independently under tight deadlines * Excellent communication and interpersonal skills * Degree in a relevant discipline Additional Information Additional Information: * BPSS and SC required * Ability to travel Assystem offices and customer sites within UK. * To undertake work packages supporting major UK and international Nuclear Clients. * Previous experience in electrical power generation or the nuclear sector an advantage 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! 🚀Drive the cutting-edge design and development of Electrical Systems for the revolutionary SMR nuclear power plant! From defining system architecture to selecting and specifying high-performance equipment, you’ll play a key role in delivering a fully verified, world-class power station. Collaborate with top engineering teams across the project and apply a structured systems engineering approach to bring innovative electrical solutions to life. Your mission: * Define & Manage Requirements – Review, refine, and document high-level electrical requirements, ensuring they are testable and align with project needs. Capture constraints, interfaces, and quality attributes using structured processes (e.g., IBM DOORS). * Design, Analyze & Verify – Develop and implement robust electrical system/component designs that meet project specifications. Conduct functional analysis, modeling, and simulation to validate performance. Define and execute verification activities in collaboration with the Verification team, ensuring compliance through rigorous testing. * Ensure Compliance & Quality – Maintain engineering excellence throughout the SMR project lifecycle. Conduct technical reviews, provide key inputs to project technical review gates, and ensure designs meet regulatory and safety standards. * Support Strategy & Risk Management – Participate in capacity planning and contribute to long-term strategic goals. Identify potential risks, implement mitigation strategies, and support decision-making to enhance project success. * Develop & Share Knowledge – Establish and maintain policies, procedures, and best practices. Develop training materials and tools to support knowledge sharing across teams. Provide expert advice to project teams and integrated product teams (IPT). * Collaborate & Represent – Work closely with internal engineering teams to drive standardization and a commoditized approach to system and component development. Represent the electrical engineering function in meetings, working groups, and external engagements with regulators, customers, and suppliers. 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 Essential Experience: * Proven experience in building electrical services design * Expertise in space management, cable routing, and cable management * Strong team player with the ability to work independently under tight deadlines * Excellent communication and interpersonal skills * Degree in a relevant discipline Additional Information Additional Information: * BPSS and SC required * Ability to travel Assystem offices and customer sites within UK. * To undertake work packages supporting major UK and international Nuclear Clients. * Previous experience in electrical power generation or the nuclear sector an advantage 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! 🚀Drive the cutting-edge design and development of Electrical Systems for the revolutionary SMR nuclear power plant! From defining system architecture to selecting and specifying high-performance equipment, you’ll play a key role in delivering a fully verified, world-class power station. Collaborate with top engineering teams across the project and apply a structured systems engineering approach to bring innovative electrical solutions to life. Your mission: * Define & Manage Requirements – Review, refine, and document high-level electrical requirements, ensuring they are testable and align with project needs. Capture constraints, interfaces, and quality attributes using structured processes (e.g., IBM DOORS). * Design, Analyze & Verify – Develop and implement robust electrical system/component designs that meet project specifications. Conduct functional analysis, modeling, and simulation to validate performance. Define and execute verification activities in collaboration with the Verification team, ensuring compliance through rigorous testing. * Ensure Compliance & Quality – Maintain engineering excellence throughout the SMR project lifecycle. Conduct technical reviews, provide key inputs to project technical review gates, and ensure designs meet regulatory and safety standards. * Support Strategy & Risk Management – Participate in capacity planning and contribute to long-term strategic goals. Identify potential risks, implement mitigation strategies, and support decision-making to enhance project success. * Develop & Share Knowledge – Establish and maintain policies, procedures, and best practices. Develop training materials and tools to support knowledge sharing across teams. Provide expert advice to project teams and integrated product teams (IPT). * Collaborate & Represent – Work closely with internal engineering teams to drive standardization and a commoditized approach to system and component development. Represent the electrical engineering function in meetings, working groups, and external engagements with regulators, customers, and suppliers. 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 Essential Experience: * Proven experience in building electrical services design * Expertise in space management, cable routing, and cable management * Strong team player with the ability to work independently under tight deadlines * Excellent communication and interpersonal skills * Degree in a relevant discipline Additional Information Additional Information: * BPSS and SC required * Ability to travel Assystem offices and customer sites within UK. * To undertake work packages supporting major UK and international Nuclear Clients. * Previous experience in electrical power generation or the nuclear sector an advantage 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! 🚀Drive the cutting-edge design and development of Electrical Systems for the revolutionary SMR nuclear power plant! From defining system architecture to selecting and specifying high-performance equipment, you’ll play a key role in delivering a fully verified, world-class power station. Collaborate with top engineering teams across the project and apply a structured systems engineering approach to bring innovative electrical solutions to life. Your mission: * Define & Manage Requirements – Review, refine, and document high-level electrical requirements, ensuring they are testable and align with project needs. Capture constraints, interfaces, and quality attributes using structured processes (e.g., IBM DOORS). * Design, Analyze & Verify – Develop and implement robust electrical system/component designs that meet project specifications. Conduct functional analysis, modeling, and simulation to validate performance. Define and execute verification activities in collaboration with the Verification team, ensuring compliance through rigorous testing. * Ensure Compliance & Quality – Maintain engineering excellence throughout the SMR project lifecycle. Conduct technical reviews, provide key inputs to project technical review gates, and ensure designs meet regulatory and safety standards. * Support Strategy & Risk Management – Participate in capacity planning and contribute to long-term strategic goals. Identify potential risks, implement mitigation strategies, and support decision-making to enhance project success. * Develop & Share Knowledge – Establish and maintain policies, procedures, and best practices. Develop training materials and tools to support knowledge sharing across teams. Provide expert advice to project teams and integrated product teams (IPT). * Collaborate & Represent – Work closely with internal engineering teams to drive standardization and a commoditized approach to system and component development. Represent the electrical engineering function in meetings, working groups, and external engagements with regulators, customers, and suppliers. 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 Essential Experience: * Proven experience in building electrical services design * Expertise in space management, cable routing, and cable management * Strong team player with the ability to work independently under tight deadlines * Excellent communication and interpersonal skills * Degree in a relevant discipline Additional Information Additional Information: * BPSS and SC required * Ability to travel Assystem offices and customer sites within UK. * To undertake work packages supporting major UK and international Nuclear Clients. * Previous experience in electrical power generation or the nuclear sector an advantage 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.