{"id":3479578,"url":"https://alion.io/job/hadean-full-stack-software-engineer-2","title":"Full Stack Software Engineer","company":{"id":172254,"name":"Hadean","domain":"hadean.com","url":"https://alion.io/company/hadean","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Teamtailor","truth_index":null},"role":"Backend","role_family":"Backend","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":["London, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":74000,"max_usd":180000,"period":"year","method":"role_country_seniority_unknown","sample_n":424},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Digital Twin","optional":false},{"name":"Material UI","optional":false},{"name":"Node JS","optional":false},{"name":"React.js","optional":false},{"name":"Rust","optional":false},{"name":"Tailwind CSS","optional":false},{"name":"TypeScript","optional":false},{"name":"Vite","optional":false},{"name":"Zustand","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-10-29T16:32:36Z","employer_posted_date":"2026-10-29","last_verified_at":"2026-11-03T17:23:32Z","board_verified":true,"closed_at":null,"days_open":5,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":5},"description":"Hadean is a deep-tech company building cutting-edge distributed computing technology that powers scalable, secure, and interoperable digital environments. Our platform enables real-time simulation and training, mission rehearsal, command & control and digital twin capabilities - transforming the way defence, government agencies and enterprises plan, train, and make decisions.\nWe work at the forefront of defence innovation, collaborating with global partners to deliver next-generation capabilities that unlock operational advantage.\nThe Team:\ndominAI is a close-knit team of highly technical, deeply collaborative engineers - each bringing genuine specialism to a shared mission. We move fast, hold each other to a high standard, and take real pride in what we ship. We work in sprints, building MVPs that are regularly taken out to industry events, integration hackathons, and live demonstrators. There's no waiting months to see your work matter - the feedback loop between building and showing is tight, and it shapes what we build next. We're also a team that invests in itself: continuous learning, honest retrospectives, and a genuine culture of craft are part of how we operate.\nThis is a new product for Hadean. We're building it quickly and building it right - and the people who join now will shape its direction.\nThe Role:\nAs a Software Engineer in the dominAI team, you will build across the full stack of our next-generation command and control platform. This is a system that enables commanders to plan and assess targeting outcomes in minutes rather than hours by embedding AI and large-scale simulation directly into the C2 workflow. You will work within a cross-functional team of AI, simulation, and infrastructure specialists, contributing to backend services that integrate with diverse simulation and analysis pipelines and to the web interfaces through which commanders and staff interact with those capabilities. You will own features end to end, supported by senior engineers who invest in your growth through mentorship, pairing and code review. As your judgement across the stack develops, so will the scope you take on.\nKey Responsibilities:\nDevelop and maintain the dominAI web application using React and TypeScript, building reliable and performant interfaces for complex operational data.\n\nBuild and extend backend services in Node.js that integrate with AI inference pipelines and simulation systems.\n\nOwn well-scoped features end to end - from refining the requirement through to shipping and supporting it in use.\n\nWork with the team to plan and execute development sprints, and provide well-reasoned estimates for your own work.\n\nCollaborate with UX designers to create clear, high-impact interfaces for complex data sets.\n\nMaintain a high bar for quality through automated and manual testing, in collaboration with QA and through code review.\n\nGrow your skills across the stack through pairing and code review with senior engineers.\n\nSkills, Knowledge and Experience\nA degree in Computer Science, Software Engineering, or a related field - or equivalent practical experience.\n\nProfessional experience building web applications with React and TypeScript.\n\nWorking proficiency in Node.js - comfortable contributing to backend services, not just consuming them.\n\nStrong communication skills - able to explain your work to engineers and stakeholders; quick to ask good questions and surface issues.\n\nCurious and quick to learn - you actively seek feedback and act on it.\n\nAbility to obtain and maintain UK Security Vetted status to at least SC level.\n\nWillingness to attend our office in Shoreditch at least once a week.\n\nWhat will help you stand out\nExperience with:\nFrontend tooling we use: Vite\n\nAPI design, data modelling, or backend integration patterns.\n\nEvent-driven architectures, message queues, or real-time data systems.\n\nComponent and styling libraries e.g. MUI, Tailwind.\n\nState management libraries e.g. Zustand, Immer.\n\nIntegrating with or building around AI services or simulation platforms.\n\nEvidence of advocating for best practices or improving the team you were in\n\nExperience with C++ or Rust\n\nInterest or familiarity with the defence sector, Military Modelling and Simulation, or C2 systems.\n\nAn interest in travelling to support customer deployments, hackathons, and industry events.\n\nJob Benefits\nWe make Hadean an awesome place to work with competitive benefits\nHybrid working with 1 day per week in our fantastic office in Shoreditch, London\n\nPrivate Health Insurance\n\nEnhanced pension scheme\n\nEnhanced parental leave\n\n3 extra days off at Christmas (on top of our standard 25)\n\nL&D budget\n\nRegularly scheduled socials\n\nShare options\n\nA Place For Everyone\nWe believe diversity drives innovation and for that reason we strongly encourage those from all backgrounds to apply for roles at Hadean. We are an equal opportunity employer and aim to build a workforce that is truly representative of the communities in which we operate and our clients.","description_format":"text","description_chars":5005,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Continuous learning","Health insurance","Hybrid work","Parental leave","Stock options"],"hiring_locations":[{"name":"United Kingdom","iso":"GB","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Cloud Platforms (IaaS & PaaS)","High-Performance Computing"],"lifecycle":[{"event":"open","at":"2026-10-29T19:48:43Z"}],"visa":[{"country":"GB","licensed_sponsor":true,"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":"2026-11-03T08:26:00+00:00","sources":["UK Home Office: register of licensed sponsors (workers)"],"filings_for_role_12m":0}],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":4,"expected_fill_days":30,"reasons":["conf:4","win:early"],"computed_at":"2026-11-03T05:54:40Z"},"pay":null,"html_url":"https://alion.io/job/hadean-full-stack-software-engineer-2","json_url":"https://alion.io/job/hadean-full-stack-software-engineer-2.json","meta":{"generated_at":"2026-11-04T04:07:42Z","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":6398,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-05T00:00:00Z"}},"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":172254},"rest":"https://alion.io/mcp/rest/get_company?id=172254"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fhadean-full-stack-software-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%2Fhadean-full-stack-software-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%2Fhadean-full-stack-software-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/hadean-full-stack-software-engineer-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fhadean-full-stack-software-engineer-2"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3479578}},{"tool":"search_jobs","arguments":{"company":"hadean.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3479578},"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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