{"id":3473448,"url":"https://alion.io/job/qcs-staffing-senior-mechanical-engineer-2","title":"Senior Mechanical Engineer","company":{"id":2436088,"name":"QCS Staffing","domain":"qcsstaffing.com","url":"https://alion.io/company/qcsstaffing","size_band":"1-10","is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":"Schema","truth_index":{"grade":"A","score":91,"open_postings":27,"ghost_share":0,"stale_share":0.148,"repost_share":0,"time_to_fill_p50_days":71,"computed_at":"2026-11-01T06:10:25Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["London, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":64000,"max_usd":102000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":145},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[],"status":"live","first_seen_at":"2026-10-29T14:24:06Z","employer_posted_date":"2026-10-29","last_verified_at":"2026-11-01T09:04:25Z","board_verified":true,"closed_at":null,"days_open":2,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":2},"description":"Senior Mechanical Engineer - Permanent - UK, London - Data CentresWe are currently supporting a specialist engineering and project delivery company supporting mission-critical construction and infrastructure projects across complex technical environments. The organisation provides installation, coordination and engineering expertise to help deliver high-quality projects safely, efficiently and on schedule. We are looking for a Senior Mechanical Engineer to join our client’s team and support their current project in London. What you’ll do:Lead the design and development of advanced cooling and infrastructure solutions for mission-critical environments, ensuring performance, reliability and scalability.Produce detailed engineering designs, drawings and technical documentation from concept through to deployment and commissioning.Manage testing, validation and performance analysis activities, identifying opportunities to improve efficiency, reliability and operational performance.Provide technical leadership and mentorship to engineering teams while collaborating with internal and external stakeholders on project delivery.\nWhat you’ll need:\nBachelor's degree in Mechanical Engineering or a related engineering discipline.Extensive experience in mechanical engineering design, ideally within data centres, HVAC, critical infrastructure or similar environments.Strong understanding of thermal management, fluid systems, heat transfer and cooling technologies.Experience using 3D CAD software and managing testing, commissioning and performance optimisation activities.\nBe part of a project driving innovation in data centre operations. Apply today!#LI-DB1","description_format":"text","description_chars":1667,"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":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-10-29T18:02:21Z"}],"visa":[],"liveness":{"score":60,"band":"ok","label":"Likely open","p_open":1,"p_active":0.596,"p_room":1,"age_days":2,"expected_fill_days":71,"reasons":["conf:11","agency","urgency","velocity","win:early","comp:brand"],"computed_at":"2026-11-01T06:10:25Z"},"pay":null,"html_url":"https://alion.io/job/qcs-staffing-senior-mechanical-engineer-2","json_url":"https://alion.io/job/qcs-staffing-senior-mechanical-engineer-2.json","meta":{"generated_at":"2026-11-01T14:16:16Z","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":21958,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-02T00:00:00Z"}},"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":2436088},"rest":"https://alion.io/mcp/rest/get_company?id=2436088"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fqcs-staffing-senior-mechanical-engineer-2"},{"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%2Fqcs-staffing-senior-mechanical-engineer-2"},{"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%2Fqcs-staffing-senior-mechanical-engineer-2"},{"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/qcs-staffing-senior-mechanical-engineer-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fqcs-staffing-senior-mechanical-engineer-2"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3473448}},{"tool":"search_jobs","arguments":{"company":"qcsstaffing.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3473448},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. Docs: https://alion.io/developers"}}