{"id":2546227,"url":"https://alion.io/job/parallel-senior-fullstack-engineer","title":"Senior Fullstack Engineer","company":{"id":3778984,"name":"Parallel","domain":"beparallel.com","url":"https://alion.io/company/parallel-7","size_band":"11-50","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":75,"open_postings":5,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-15T05:46:00Z"}},"role":"Backend","role_family":"Backend","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":["Paris, France"],"countries":["FR"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":51000,"max_usd":87000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":163},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"AI Agents","optional":false},{"name":"AWS","optional":false},{"name":"CI/CD","optional":false},{"name":"Docker","optional":false},{"name":"GitHub Actions","optional":false},{"name":"Hugging Face","optional":false},{"name":"Kubernetes","optional":false},{"name":"LangChain","optional":false},{"name":"LLM","optional":false},{"name":"Nest.JS","optional":false},{"name":"Node JS","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Prisma","optional":false},{"name":"React.js","optional":false},{"name":"Tailwind CSS","optional":false},{"name":"Terraform","optional":false},{"name":"TypeScript","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-06-03T09:45:55Z","employer_posted_date":"2026-06-03","last_verified_at":"2026-10-15T19:14:22Z","board_verified":true,"closed_at":null,"days_open":134,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":133},"description":"At Parallel, we build AI agents to help healthcare facilities automate their administrative processes and unlock additional revenue, starting with medical coding.\nToday, up to 25% of healthcare spending is lost in manual, repetitive administrative work. Legacy software hasn’t helped, it’s made things slower, more complex, and more frustrating for care teams.\nWe believe AI agents can change that. Our technology combines Large Language Models with system-level automation to handle real work inside existing hospital tools. No integrations, no disruption.\nOur first agent automates coding workflows and frees up time for medical staff to focus on patients.\nWe launched in 2024, are backed by top investors (Index, Frst, Y Combinator, Hexa, Kima Ventures, Better Angle), and we’re just getting started.\nThe future of healthcare isn’t just digital - it’s automated. Come help us build it !\nContext\nWe're at a pivotal moment. We've closed a $20M Series A with Index Ventures, we're deployed in 40+ hospitals, and we're scaling fast. The company was built by Paul Lafforgue (Polytechnique, ex-Meta, ex-McKinsey) and Chris Rydahl, whose previous company Hublo became Europe's largest healthcare staffing platform. We're 15 people, based in Paris.\nWe're now hiring a Senior Full-Stack Engineer to help us scale - not just to write code, but to shape our architecture, make key product decisions, and define our engineering culture.\nYour mission\nOwn the full technical stack - from core backend services to user-facing interfaces - and help deploy reliable AI agents in hospitals.\nConcretely, you will:\nBuild production-grade systems, not prototypes - robust, secure, and HDS-compliant, designed to run in demanding hospital environments\n\nShip and iterate on LLM-powered agents that automate complex end-to-end workflows\n\nWork alongside the CTO to make the right architecture decisions, balancing speed and long-term scalability\n\nBuild interfaces that doctors and administrative operators actually want to use - understanding their pain points, not just closing tickets\n\nLay the engineering foundations: CI/CD, observability, internal tooling, code quality standards\n\nOutcomes\nIn your first months, we expect you to:\nOwn the full lifecycle of major features - from spec to production monitoring\n\nDesign a modular backend architecture that supports multiple clients with complex, custom business rules\n\nDeploy AI agents in production with a high reliability bar\n\nBuild and maintain solid data pipelines between hospital systems and our stack, HDS-compliant\n\nImprove team velocity through better tooling, CI/CD, and observability\n\nThis job is for you if:\nYou have 5+ years of full-stack experience\n\nYou're strong in Node.js & TypeScript (NestJS, Express, Prisma, Postgres) and React (TanStack, Tailwind)\n\nYou've played with LLMs and AI agents - whether on side projects or professionally (LangChain, Hugging Face)\n\nYou're comfortable with infrastructure and deployment (AWS, Docker, Terraform, Kubernetes, GitHub Actions)\n\nYou care about the product, not just the code - you push back when something doesn't make sense, and you propose solutions proactively\n\nYou're autonomous and pragmatic - done beats perfect, especially at this stage\n\nYou're French-speaking\n\nYou graduated from a top engineering school\n\nHiring process\nQuick call with Chris, our CTO\n\nCase study at our Paris office\n\nMeeting with Paul, our CEO\n\nDrinks with the team\n\nWhy join us?\nReal traction. Seed and Series A closed in under a year, with Index Ventures on the cap table. This isn't a maybe - it's a company that's moving.\n\nA problem worth solving. Cutting hospital admin directly gives time back to care teams. The impact is tangible.\n\nA genuinely different technical approach. Agents that work on top of existing systems without heavy integration is a real competitive edge - and you'll be the one building it.\n\nA team that has done it before. The founders have built and scaled before (Hublo, Meta, McKinsey). High standards, low ego.\n\nActual ownership. You won't be handed a backlog. You'll co-build the architecture and set the engineering culture from the ground up.\n\nCompetitive salary and equity package, premium health insurance (Alan), Swile meal vouchers, latest Apple equipment, Paris office (Strasbourg Saint-Denis).\n\nWe care about who you are, not just what's on your CV.\nIf you're drawn to what we're building but don't meet every requirement, we still want to hear from you. Studies show that women in particular tend to apply only when they meet 100% of the criteria. If that's you, please don't let that hold you back. We'd love to receive your application.","description_format":"text","description_chars":4641,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"French","level":"All levels","optional":false}]},"benefits":["Equity","Health insurance"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["AI Agents"],"lifecycle":[{"event":"open","at":"2026-10-14T16:53:45Z"}],"visa":[],"liveness":{"score":7,"band":"cold","label":"Long shot","p_open":1,"p_active":0.253,"p_room":0.28,"age_days":133,"expected_fill_days":31,"reasons":["conf:2","win:tail","crowd:"],"computed_at":"2026-10-15T05:46:00Z"},"pay":null,"html_url":"https://alion.io/job/parallel-senior-fullstack-engineer","json_url":"https://alion.io/job/parallel-senior-fullstack-engineer.json","meta":{"generated_at":"2026-10-15T19:34:39Z","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":29663,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-16T00:00:00Z"}},"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":3778984},"rest":"https://alion.io/mcp/rest/get_company?id=3778984"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fparallel-senior-fullstack-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%2Fparallel-senior-fullstack-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%2Fparallel-senior-fullstack-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/parallel-senior-fullstack-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fparallel-senior-fullstack-engineer"}]}