{"id":1201031,"url":"https://alion.io/job/assystem-mechanical-engineers-bristol-bridgwater","title":"Mechanical Engineers - Bristol / Bridgwater","company":{"id":5278,"name":"Assystem","domain":"assystem.com","url":"https://alion.io/company/assystem","size_band":"5000+","is_staffing_agency":true,"is_intermediary":false,"listed_via":null,"ats_vendor":"SmartRecruiters","truth_index":{"grade":"B","score":75,"open_postings":179,"ghost_share":0,"stale_share":0.994,"repost_share":0,"time_to_fill_p50_days":26,"computed_at":"2026-09-24T05:45:00Z"}},"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":39000,"max_usd":94000,"period":"year","method":"role_country_seniority_unknown","sample_n":259},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[],"status":"live","first_seen_at":"2026-09-24T11:38:01Z","employer_posted_date":"2026-09-24","last_verified_at":"2026-09-24T20:51:18Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"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.\nAssystem mobilizes 8,000 experts in 13 countries and intervenes across the entire project lifecycle, in engineering, project management and digital solutions.\n These opportunities are suited to candidates within commuting distance of Bridgwater or Bristol, depending on role requirements.\nWe are seeking Mechanical Engineers across Engineer, Senior, Lead and Principal levels. With a background in either, piping, HVAC, rotating equipment, pressure systems, valves, pumps or diesel generators.\nYou will support the delivery, commissioning and operational readiness of critical nuclear mechanical systems.\nDeliver engineering solutions across mechanical, piping, HVAC and process systems\nSupport commissioning, testing and validation of mechanical systems\nContribute to construction, installation and equipment engineering activities\nSupport system turnover, handover and operational readiness programmes\nResolve technical issues, site queries and engineering challenges\nCoordinate contractors, suppliers and multidisciplinary project stakeholders\nReview technical documentation, design changes and construction modifications\nEnsure compliance with nuclear safety, quality and regulatory requirements\nManage interfaces across engineering, construction and commissioning teams\nSupport major project milestones through to operational readiness\n Mechanical Engineering degree or relevant technical qualification and experience\nExperience in mechanical systems, equipment or engineering delivery\nBackground in piping, HVAC, rotating equipment, pressure systems, valves, pumps or diesel generators would be advantageous\nCommissioning, testing, installation or construction experience highly valued\nExperience delivering complex engineering or infrastructure projects\nExperience working within regulated or safety-critical environments\nStrong communication and stakeholder management capabilities\nExcellent technical problem-solving and analytical skills\nCommitment to quality, safety and engineering excellence\nNuclear, energy, defence or major infrastructure experience advantageous\n Build Your Future in Nuclear Engineering\nWhether you are beginning your engineering career or bringing decades of specialist experience, this is an opportunity to contribute to one of the UK's most significant infrastructure projects. Join a global engineering community, work on complex nuclear systems and build a career around missions that will have an impact for generations.\nBenefits include:\nHybrid Working Opportunity\nFlexible working hours\nMarket Leading Pension scheme (8% company contribution / 4% personal contribution)\n25 days’ paid annual leave + bank holidays + option to buy or sell days\nProfessional fees reimbursed\nEmployee referral scheme\nCompetitive Sick Pay - Support when you need it\nIncome Protection & 3x Salary Death-in-Service Cover\nFree Digital Gym Access - Expert-led fitness classes\n24/7 Employee Support Line - Mental health, financial & legal help\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":4008,"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":"All levels","optional":false}]},"benefits":["Annual leave","Flexible schedule","Hybrid work"],"hiring_locations":[{"name":"United Kingdom","iso":"GB","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Nuclear Engineering"],"lifecycle":[{"event":"open","at":"2026-09-24T20:51:18Z"}],"liveness":{"score":52,"band":"ok","label":"Likely open","p_open":1,"p_active":0.516,"p_room":1,"age_days":0,"expected_fill_days":26,"reasons":["conf:7","agency","win:early","comp:brand"],"computed_at":"2026-09-25T04:26:24Z"},"pay":null,"html_url":"https://alion.io/job/assystem-mechanical-engineers-bristol-bridgwater","json_url":"https://alion.io/job/assystem-mechanical-engineers-bristol-bridgwater.json","meta":{"generated_at":"2026-09-25T04:26:24Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":4801,"day_limit":5000,"remaining_today":199,"minute_limit":60,"resets_at":"2026-09-26T00:00:00Z"}}}