{"id":3309113,"url":"https://alion.io/job/open-cosmos-thermal-systems-engineer","title":"Thermal Systems Engineer","company":{"id":51554,"name":"Open Cosmos","domain":"open-cosmos.com","url":"https://alion.io/company/open-cosmos","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Teamtailor","truth_index":{"grade":"A","score":93,"open_postings":30,"ghost_share":0.033,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":177,"computed_at":"2026-10-31T05:58:55Z"}},"role":"Web3","role_family":"Web3","seniority":null,"employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["Didcot, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":85000,"max_usd":189000,"period":"year","method":null,"sample_n":79},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Thermal Desktop","optional":false}],"status":"live","first_seen_at":"2026-04-28T09:36:01Z","employer_posted_date":"2026-04-28","last_verified_at":"2026-10-31T23:08:24Z","board_verified":true,"closed_at":null,"days_open":186,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":185},"description":"Aim high, go beyond!\nAt Open Cosmos we are solving the world’s biggest challenges from space, providing businesses, governments and researchers access to more readily available information than ever before - ready for the challenge? Then read on…\nWorking in our Chief Technology Office (CTO)\nThe CTO division is where Open Cosmos technology comes to life. Covering engineering, product development, and technical innovation, the team designs, builds, and operates the satellites, systems, and platforms that make our missions possible. It’s a highly collaborative environment where ideas become real hardware, software, and data solutions that deliver impact from space.\nOur Systems Team brings together brilliant Systems, AOCS and Thermal Engineers who turn ambitious mission concepts into reality. They design, integrate, and optimise every detail - from spacecraft architecture to next-generation optical payloads - making sure every system fits, works, and thrives in orbit. From first sketch to launch day, they own the journey, ensuring our satellites deliver maximum impact back on Earth.\nWhat You'll Be Doing\nYou’ll run the thermal work package for multiple missions, model and analyse spacecraft thermal behaviour, and plan and run thermal tests. You’ll work hands-on during AIT, support anomaly resolution, and be part of the team that ensures Open Cosmos missions perform as expected in space.\nYou’ll also collaborate with our other subsystem engineers, feed into our product roadmap, and help us continuously improve how we design and deliver missions.\nWhat You’ll Bring\nWe’re looking for someone who combines technical depth with a collaborative spirit. You should have:\nStrong knowledge of spacecraft thermal control and space thermal environments.\n\nProficiency with thermal modelling tools (e.g. ESATAN-TMS, Thermica, Thermal Desktop).\n\nProven ability to plan and deliver thermal tests from start to finish.\n\nSolid understanding of satellite subsystems and confidence working across disciplines.\n\nKnowledge of mission analysis and overall space system design.\n\nClear communication skills - comfortable engaging with colleagues, partners, and customers.\n\nA proactive, adaptable approach that thrives in a fast-moving, growing company.\n\nFor this role you can be based in either Harwell, UK, Porto, Portugal or Barcelona, Spain.\nTo apply, you must have the legal right to work in your chosen location.\nPlease submit your application in English.\nWhy Open Cosmos?\nWork at the cutting edge of space technology with customers around the globe.\n\nA mission-driven company making space accessible to help solve real-world challenges.\n\nA diverse, ambitious, and supportive team.\n\nEqual opportunity employer\nAt Open Cosmos, we are dedicated to fostering a workplace built on respect, dignity, and belonging. As an equal opportunity employer, we actively challenge bias to ensure every candidate and employee feels truly welcome. We celebrate diversity in all its forms and are committed to maintaining an inclusive environment where everyone has the opportunity to thrive.","description_format":"text","description_chars":3075,"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":[{"name":"United Kingdom","iso":"GB","kind":"country"},{"name":"Spain","iso":"ES","kind":"country"},{"name":"Portugal","iso":"PT","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Satellite Manufacturing","Earth Observation","Space Services"],"lifecycle":[{"event":"open","at":"2026-10-27T02:36:19Z"}],"visa":[{"country":"GB","licensed_sponsor":true,"evidence":"Licensed UK visa sponsor (Senior or Specialist Worker, Skilled Worker)","filings_12m":null,"filings_prev_12m":null,"green_card_filings_12m":null,"median_offered_wage_usd":null,"route":"Global Business Mobility: Senior or Specialist Worker; Skilled Worker","cap_exempt":false,"checked_at":"2026-10-31T06:23:40+00:00","sources":["UK Home Office: register of licensed sponsors (workers)"],"filings_for_role_12m":0}],"liveness":{"score":30,"band":"fade","label":"Fading","p_open":1,"p_active":0.69,"p_room":0.44,"age_days":185,"expected_fill_days":177,"reasons":["conf:4","win:tail","crowd:"],"computed_at":"2026-10-31T05:58:55Z"},"pay":null,"html_url":"https://alion.io/job/open-cosmos-thermal-systems-engineer","json_url":"https://alion.io/job/open-cosmos-thermal-systems-engineer.json","meta":{"generated_at":"2026-10-31T23:55:53Z","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":37524,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-01T00:00:00Z"}},"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":51554},"rest":"https://alion.io/mcp/rest/get_company?id=51554"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fopen-cosmos-thermal-systems-engineer"},{"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%2Fopen-cosmos-thermal-systems-engineer"},{"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%2Fopen-cosmos-thermal-systems-engineer"},{"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/open-cosmos-thermal-systems-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fopen-cosmos-thermal-systems-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3309113}},{"tool":"search_jobs","arguments":{"company":"open-cosmos.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3309113},"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. 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