{"id":1608660,"url":"https://alion.io/job/subsea-craft-mechanical-build-engineer","title":"Mechanical Build Engineer","company":{"id":686815,"name":"SubSea Craft","domain":"subseacraft.com","url":"https://alion.io/company/subseacraft","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"BambooHR","truth_index":null},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":null,"employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Portsmouth, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":40000,"max":50000,"currency":"GBP","period":"year","gross":null,"usd_annual":66169},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":true},{"name":"Microsoft Office","optional":true}],"status":"live","first_seen_at":"2026-09-22T00:00:00Z","employer_posted_date":"2026-09-22","last_verified_at":"2026-10-13T00:53:35Z","board_verified":true,"closed_at":null,"days_open":21,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":21},"description":"Salary: £40,000- £50,000 pa\nFull Time\nPermanent\nWho we are:SubSea Craft is a fast growing, privately-funded, UK-based innovative maritime technology company specialising in next-generation, high-performance watercraft and systems. We operate at the intersection of advanced engineering, cutting-edge design, and user-centric innovation, delivering safe, effective, and enabling solutions for both commercial and defence applications.\nWhat we offer:\nPension Contribution- Pension scheme with the option to contribute via salary sacrifice.\nAnnual Bonus Scheme- Eligibility to participate in the company’s annual discretionary bonus scheme, linked to individual and company performance.\nLife Assurance and Critical Illness Cover- Comprehensive protection including Life Assurance (4x salary) and Critical Illness Cover for added financial security.\nAnnual Leave- Entitlement to 25 days of annual leave plus bank holidays.\nChristmas Leave- A Christmas shutdown is typically observed.\nWellbeing Day- An additional Wellbeing Day each year to focus on personal health and wellbeing.\nFamily Leave- Enhanced maternity and paternity pay.\nPrivate Healthcare- Access to comprehensive private healthcare coverage to support your physical and mental wellbeing.\nProfessional Development- Commitment to ongoing learning and career growth, supported by training programmes and access to LinkedIn Learning.\nFlexible Working- Opportunities for flexible working arrangements to promote work-life balance.\nInclusive Culture- A professional environment that values diversity, innovation, and collaboration.\nResponsibilities will include:\nAssemble marine sub-systems and support functional testing activities to assistwith system validation and sea-readiness.\nBuild and test marine propulsion components - including engines, gearboxes, and waterjets - to a high standard, ensuring full readiness for installation.\nProactively identify, report, and provide input on any defects or issues encounteredduring vessel construction and system installation.\nInstall sub-system components into the vessel in line with marine engineering specifications and design requirements.\nReport defects, material issues, or unclear documentation promptly. and through the correct process.\nAccurately interpret and follow detailed work instructions, including those provided via 3D models and digital platforms, in a marine engineering environment.\nSupport the full fit-out of vessels, ensuring all equipment and systems are installed accurately, securely, and to specification.\nRigorously follow safety procedures, work instructions, and project schedules to ensure timelyand compliant delivery.\nConsistently produce work to the highest quality standards, with a strong focus on safety, reliability, and marine compliance.\nAttend relevant meetings and offer constructive, experience-based feedback to support continuous improvement and build efficiency.\nTravel to and support off-site marine craft testing, trials, or commissioning activities if required, seeing the craft through to commissioning to ensure a smooth handover and operational readiness.\nAid the operations team with routine and reactive maintenance tasks and provide hands-on technical assistanceas needed.\nQualifications and Experience:\nCity & Guilds or HND qualification in Boat Building or Marine Engineering (desirable).\nExperience working with diesel and petrol engines.\nExperience with hand tools & various light machines.\nExperience in waterjet and gearbox installation and maintenance.\nComputer literate with basic knowledge of Microsoft Office.\nExisting right to live and work in the UK and no known bar to obtaining appropriate UKsecurity clearance as required.\nNote: Due to the nature of work undertaken at SubSea Craft, the selected candidate must be capable of meeting the security requirements of the position, which would include as a minimum existing right to live and work in the UK, Baseline Personnel Security Standard (BPSS), with UK National security clearance required for certain roles.*\nValues:Our people are our greatest asset, we continually strive to provide an excellent working environment to enable our team to do their best work. We have an agile professional workforce: we are founded on the belief that our people are valued and our business is trusted, inclusive and commercially-adept.\nWhat we expect from you:\nTeamwork, mutual respect and collaboration\nInitiative and independent working\nHonesty and integrity\nBusiness and commercial awareness\nAgility, adaptability and continuous development\nWe are committed to building an inclusive, diverse workplace where everyone can thrive. If you require any support or adjustments to interact with us, please let us know. *Please note that all offers of employment are conditional and subject to satisfactory DBS, driving licence and reference checks. A criminal record will not automatically disqualify candidates from employment. We will consider criminal record information alongside the wider range of evidence gathered at the application, interview, and pre-employment checking stages.\nDue to the high volume of applications, we are unable to respond to everyone. If you are shortlisted, we will aim to contact you within 14 days of your application or the closing date (if stated). We may retain your details for future suitable roles unless you advise us otherwise. 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