{"id":3153075,"url":"https://alion.io/job/lexroom-senior-full-stack-engineer-bcn","title":"Senior Full Stack Engineer (BCN)","company":{"id":678416,"name":"Lexroom","domain":"lexroom.ai","url":"https://alion.io/company/lexroom-2","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"B","score":83,"open_postings":12,"ghost_share":0,"stale_share":0.667,"repost_share":0,"time_to_fill_p50_days":28,"computed_at":"2026-10-27T05:46:45Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Barcelona, Spain"],"countries":["ES"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":50000,"max":80000,"currency":"EUR","period":"year","gross":null,"usd_annual":89734},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"Claude Code","optional":false},{"name":"Cursor","optional":false},{"name":"Python","optional":false},{"name":"React.js","optional":false},{"name":"Django","optional":true},{"name":"GitHub Actions","optional":true},{"name":"JavaScript","optional":true},{"name":"LLM","optional":true},{"name":"Next.js","optional":true},{"name":"PostgreSQL","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-10-23T11:09:00Z","employer_posted_date":"2026-10-23","last_verified_at":"2026-10-27T12:51:25Z","board_verified":true,"closed_at":null,"days_open":4,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":4},"description":"Lexroom is building the AI platform where legal work gets done. In just over two years, we've grown from zero to €25M ARR, and today more than 20,000 legal professionals across Italy, Spain, Germany, France, and Bulgaria rely on Lexroom.\nWe're backed by $73M from Left Lane Capital, Base10 Partners, and Eurazeo, and we're a team of around 300 builders who move fast, say things straight, and own each outcome.\nOur next goal? Become Europe's most-used legal product.\nWhyLexroom?\nShape the Standard: Be part of the team setting the benchmark for legal AI in Europe.\n\nWork with the Best: Collaborate with exceptional colleagues in a culture that values competence, curiosity, and ambition.\n\nDeliver Meaningful Results: Your contribution will directly influence how legal professionals work-faster, clearer, and more efficiently.\n\nAt Lexroom, we leave buzzwords behind. Here, you’ll build something that lasts: a trusted platform, a strong reputation, a new standard for the legal world.\nThe role\nYou will be one of the senior engineers in a squad of four to five, with a product manager and a designer. You will make the technical decisions for what the squad ships, own those decisions in production, and help the engineers around you get better. Impact is defined by vision and execution, not by age or title.\nYou will work across the whole stack. We expect you to be deep on one side and fluent enough on the other to ship a feature alone when needed. If you are a strong backend engineer who has never touched React, or a strong frontend engineer who has never written Python, apply: we hire for judgment and curiosity, and we will tailor the interviews to where you are strongest.\nWHAT YOU'LL BRING\n5+ years of professional software engineering experience, with at least one system you owned end to end. Years alone are not the requirement; the evidence is.\n\nYou have shipped and operated systems that real users depended on, and you can tell us what broke, what it cost and what you changed.\n\nYou use AI coding tools every day (Claude Code, Cursor or similar) and you can say precisely where they were wrong and how you caught it.\n\nYou review other people’s code as a habit, and people get better from your reviews.\n\nYou speak and write English fluently: it is our working language across teams and countries. Italian is a plus.\n\nOur stack\nNext.js and TypeScript on the frontend, Python (Django and Django Ninja) on the backend, Postgres and vector stores, LLM pipelines built on our own AI platform, deployed on the cloud with GitHub Actions. You do not need to know all of it. You need to be able to learn the part you don’t know in weeks, not quarters.\nThis role is probably not for you if\nYou have never been responsible for something running in production.\n\nYou want a well-defined ticket to implement and someone else to decide.\n\nYou see full-stack work as a compromise rather than as the way to ship.\n\nWHAT SETS US APART\nAn Exceptional Team\nAtLexroom, you’ll work alongside top talent in tech and legal AI.\nOur focused teams operate with purpose and autonomy, so every contribution delivers visible results.\nYou’ll collaborate with people who pair innovation with rigor, curiosity with discipline, ambition with depth.\nGrowth that Matters\nWe hire exceptional people to make a difference-and we give them space to lead.\nYour work will shape the future of legal technology and set new standards for the field.\nImpact is defined by vision and execution, not by age or title. If you’re ready to take responsibility, you’ll find real opportunities to grow and lead high-stakes projects.\nRewarding Your Contribution\nWe value excellence and share success:\nAnnual Salary Range: €50,000 - €80,000\n\nEquity Package: Align your growth with the company’s long-term success.\n\nBENEFITS THAT MATTER\nHybrid Work: Flexibility to balance remote work with in-person collaboration at our Barcelona office.\n\nHealth Insurance: Comprehensive coverage to ensure peace of mind.\n\nMeal Vouchers: Daily support to make your lunch breaks easier.\n\nPerformance Bonuses: Rewards tied directly to measurable results.\n\nTeam Retreats & Off-sites: Dedicated time to connect, collaborate, and spark bold ideas.\n\nAtLexroom , ambition meets discipline and purpose. We’re not just building a product-we’re setting a new standard for the legal world. 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