{"id":1416020,"url":"https://alion.io/job/assystem-mechanical-commissioning-engineer-nuclear-fuel-handling","title":"Mechanical Commissioning Engineer - Nuclear Fuel Handling","company":{"id":5278,"name":"Assystem","domain":"assystem.com","url":"https://alion.io/company/assystem","size_band":"5000+","is_staffing_agency":false,"employer_type":"services","is_intermediary":false,"listed_via":null,"ats_vendor":"SmartRecruiters","truth_index":{"grade":"B","score":75,"open_postings":209,"ghost_share":0,"stale_share":0.995,"repost_share":0,"time_to_fill_p50_days":27,"computed_at":"2026-10-20T05:45:00Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":null,"employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Bridgwater, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":37000,"max_usd":77000,"period":"year","method":"role_country_seniority_unknown","sample_n":820},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[],"status":"live","first_seen_at":"2026-09-28T15:20:52Z","employer_posted_date":"2026-09-28","last_verified_at":"2026-10-21T01:26:06Z","board_verified":true,"closed_at":null,"days_open":22,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":22},"description":"About Assystem\nToday, 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.\nAssystem mobilizes 8,000 experts in 13 countries and intervenes across the entire project lifecycle, in engineering, project management and digital solutions.\nWhy Join the Community of Switchers?\nAs a member of Assystem, you'll be part of a team driving the low-carbon energy future. We’re ranked second globally in nuclear engineering, offering you the chance to work on world-class projects like Hinkley Point C. Together, we’ll innovate and shape tomorrow’s energy solutions.\n This role supports major nuclear programmes and is ideally suited to candidates within commuting distance of Bridgwater or those willing to relocate with relocation support available.\nYou will lead commissioning activities for critical radioactive waste systems across a major nuclear project.\nThe role combines commissioning delivery, technical leadership and stakeholder engagement throughout project lifecycle phases.\nDevelop commissioning documentation supporting testing and system validation activities\nManage full commissioning lifecycle for multiple radioactive waste systems\nReview plant designs to optimise commissioning and operational readiness\nLead commissioning test programmes and analyse commissioning results\nSupervise contractor commissioning personnel during on-site activities\nProduce reports demonstrating system readiness and commissioning outcomes\nCollaborate with designers, contractors and operational stakeholders\nEnsure compliance with nuclear safety and regulatory requirements\nSupport commissioning planning, milestones and project delivery objectives\nMaintain safe and effective interfaces throughout commissioning activities\n Degree, HNC/HND in Mechanical, Nuclear, Process or Power Engineering\nStrong knowledge of mechanical systems within industrial environments\nExperience commissioning large industrial or power generation systems\nNuclear sector experience, particularly Nuclear Island systems preferred\nExperience developing commissioning procedures and test documentation\nKnowledge of nuclear safety requirements and regulatory compliance\nStrong understanding of commissioning methodologies and system validation\nExcellent communication and stakeholder management capabilities\nStrong planning, coordination and organisational skills\nFluent English communication skills, written and verbal\n What we offer\nHybrid Working - Flexibility to work from home and the office\n25 Days Annual Leave + Bank Holidays\nBuy & Sell Holiday - Make your time off work for you\n8% Company Pension Contributions\nIncome Protection & 3x Salary Death-in-Service Cover\nCompetitive Sick Pay - Support when you need it\nHealthcare Cash Plan - Claim back on dental, optical & more\nFree Digital Gym Access - Expert-led fitness classes\nExclusive Discounts - Restaurants, days out & top brands\n24/7 Employee Support Line - Mental health, financial & legal help\nCycle to Work Scheme - Save money & go green\nFree Flu Jabs & Eye Test Vouchers\nPaid Professional Membership Fees\nVolunteer Days - Make a difference on company time\nJoin Assystem and contribute to delivering sustainable and innovative engineering solutions for the Hinkley Point C project.\nNOTICE 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.\nWe 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_format":"text","description_chars":4198,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"English","level":"Advanced (C1)","optional":false}]},"benefits":["Annual leave","Hybrid work"],"hiring_locations":[{"name":"United Kingdom","iso":"GB","kind":"country"}],"hiring_excludes":[],"relocation_offered":true,"industries":["Nuclear Energy","Nuclear Engineering","Energy & Utilities"],"lifecycle":[{"event":"open","at":"2026-09-28T20:45:40Z"}],"visa":[],"liveness":{"score":39,"band":"fade","label":"Fading","p_open":1,"p_active":0.518,"p_room":0.75,"age_days":21,"expected_fill_days":27,"reasons":["conf:1","stale_co","velocity","win:late","comp:brand"],"computed_at":"2026-10-20T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/assystem-mechanical-commissioning-engineer-nuclear-fuel-handling","json_url":"https://alion.io/job/assystem-mechanical-commissioning-engineer-nuclear-fuel-handling.json","meta":{"generated_at":"2026-10-21T04:32:00Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":6613,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-22T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":5278},"rest":"https://alion.io/mcp/rest/get_company?id=5278"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fassystem-mechanical-commissioning-engineer-nuclear-fuel-handling"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fassystem-mechanical-commissioning-engineer-nuclear-fuel-handling"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fassystem-mechanical-commissioning-engineer-nuclear-fuel-handling"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/assystem-mechanical-commissioning-engineer-nuclear-fuel-handling\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fassystem-mechanical-commissioning-engineer-nuclear-fuel-handling"}]}