{"id":3558088,"url":"https://alion.io/job/isembard-software-engineer","title":"Software Engineer","company":{"id":3780450,"name":"Isembard","domain":"isembard.com","url":"https://alion.io/company/isembard","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"middle","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":63000,"max_usd":143000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":25},"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[],"status":"live","first_seen_at":"2026-10-29T14:55:43Z","employer_posted_date":"2026-10-29","last_verified_at":"2026-11-06T19:57:37Z","board_verified":true,"closed_at":null,"days_open":8,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":8},"description":"About Isembard\nIsembard is building a network of high-performance factories for critical industries. We combine advanced machine tools, robotics and our own software, MasonOS, to make precision components for aerospace, defence, energy and frontier technology companies, with factories across the UK, US, Germany and France. Our mission is to forge industrial acceleration.\nThe role\nMasonOS coordinates our factory network across four countries. This role builds the part of it that makes decisions: which site takes an order, which supplier fills a gap, how the schedule changes when a machine goes down.\nIt is backend engineering with physical consequences. When the routing is wrong, metal sits still.\nWhat you'll do\nBuild order routing across the sites in our network.\n\nBuild supplier orchestration and the data behind it.\n\nDesign backend architecture for more sites than we run today, not just the ones we have.\n\nDeploy MasonOS into new sites as the network grows, and adapt your abstractions when they meet a real shop floor.\n\nSet and defend the reliability standards for a system that production depends on.\n\nWork closely with our factory and robotics teams.\n\nWhat we're looking for\nStrong backend engineering fundamentals.\n\nReal experience with distributed systems.\n\nGood judgement about failure: what is allowed to degrade, and what must never break.\n\nComfort working in high-security environments.\n\nTypically three or more years of professional experience, though we will consider exceptional early-career engineers who can add value quickly.\n\nA willingness to learn how a factory runs from the people who run it. You do not need a manufacturing background, but you should want one.\n\nWhy Isembard\nWork on systems that control physical production, with results you can see on the shop floor.\n\nHigh ownership and real influence over the architecture.\n\nCompetitive salary and equity.\n\nLocation: On-site at our Southwark factory in London, with travel to new sites when deploying MasonOS.","description_format":"text","description_chars":1994,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Equity"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Cybersecurity","Manufacturing","Space & Aerospace"],"lifecycle":[{"event":"open","at":"2026-10-31T02:14:03Z"}],"visa":[{"country":"GB","licensed_sponsor":true,"adverts_offering_sponsorship_24m":0,"sanctioned_now":false,"evidence":"Licensed UK visa sponsor (Skilled Worker)","filings_12m":null,"filings_prev_12m":null,"green_card_filings_12m":null,"median_offered_wage_usd":null,"route":"Skilled Worker","cap_exempt":false,"checked_at":"2026-11-06T22:32:54+00:00","sources":["UK Home Office: register of licensed sponsors (workers)"],"filings_for_role_12m":0}],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":7,"expected_fill_days":30,"reasons":["conf:3","velocity","win:early"],"computed_at":"2026-11-06T05:58:05Z"},"pay":null,"html_url":"https://alion.io/job/isembard-software-engineer","json_url":"https://alion.io/job/isembard-software-engineer.json","meta":{"generated_at":"2026-11-06T22:54:14Z","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":1606,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-07T00:00:00Z"}},"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":3780450},"rest":"https://alion.io/mcp/rest/get_company?id=3780450"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fisembard-software-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%2Fisembard-software-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%2Fisembard-software-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/isembard-software-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fisembard-software-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3558088}},{"tool":"search_jobs","arguments":{"company":"isembard.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3558088},"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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