{"id":2272074,"url":"https://alion.io/job/responsibly-fullstack-typescript-engineer","title":"Fullstack TypeScript Engineer","company":{"id":2541289,"name":"Responsibly","domain":"responsibly.tech","url":"https://alion.io/company/responsibly","size_band":"1-10","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Denmark"],"countries":["DK"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"LLM","optional":false},{"name":"Next.js","optional":false},{"name":"PostgreSQL","optional":false},{"name":"TypeScript","optional":false},{"name":"JavaScript","optional":true},{"name":"React.js","optional":true}],"status":"closed","first_seen_at":"2026-10-09T22:00:00Z","employer_posted_date":null,"last_verified_at":"2026-10-14T20:52:00Z","board_verified":false,"closed_at":"2026-10-14T20:52:00Z","days_open":4,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":4},"description":"**Responsibly 🌍🌱\n\n**Responsibly is a VC-backed sustainability tech start-up with a vision of making every purchase in the world responsible. We're founded by serial entrepreneurs with previous successes like Ofload, Dixa and Neurons, funded by some of Europe's top VCs and angels, and now cash-flow positive with an incredibly exciting roadmap ahead.\n\n**Let's change the world together 🎯\n\n**More than 40% of global emissions, and really any ESG issue, are directly or indirectly impacted by procurement. Companies wield enormous purchasing power when they select and manage suppliers, so if we can put sustainability on every supplier scorecard out there, we really can change the world.\n\nBut it's hard: a company can have anywhere from 100 to 100,000 suppliers, analyzing each one's sustainability efforts is near-impossible, and most ESG ratings suck. Responsibly's AI-powered due diligence engine automates the due diligence on every supplier across every ESG data point, from risk and violations to positive actions, and turns it into insights that help companies build more sustainable supply chains.\n\n**The engineering problem 🧩\n\n**Most of what we do comes down to one hard thing: turning the world's messy, unstructured supplier data into something you can score.\n\nA supplier's ESG reality is scattered across PDF sustainability reports, half-broken corporate websites, regulatory filings, news, and a dozen ERP exports that all name the same company differently. We scrape it, extract it, resolve the entities, normalise it, and put a number on it, at a scale where a single customer can have 100,000 suppliers.\n\nThat means real problems, not ticket-shaped ones. Extraction pipelines where the LLM is confidently wrong 5% of the time and you have to decide what to do about it. Entity resolution where \"Nordic Steel A/S\" and \"NORDIC STEEL\" and \"Nordisk Stål\" may or may not be the same company. Schema design for data that arrives in a different shape every time. If that sounds fun rather than exhausting, we should talk.\n\n**Build next-gen products with next-gen technologies 🌟\n\n**You'll work on a Next.js app leveraging the latest in server actions, server components and serverless architecture, building dynamic, high-performance applications with TypeScript, PostgreSQL and AI integrations.\n\nWe don't just leverage AI in our product; we're building a next-generation engineering team where you're not only encouraged but expected to adopt the latest technologies in how you work. Our engineers run agentic coding tools daily, and we'd rather talk about where they fall down than whether to use them.\n\n**How We Work 🛠️\n\n**\n\nThe engineering team is small and you're reporting directly to Christian, our CTO. There is no layer between you and the decisions\n\nSpecs are limited. You'll get a problem, what the output should look like, sometimes vaguely, and you're expected to own it from there to release; including where to ask for more information. If you'd rather have the approach agreed before you start, you will find this uncomfortable\n\nYou choose how to solve it, and you ship it. Idea to production is days, not quarters. We run weekly sprints - considering going bi-weekly - most often with releases as the goal for the sprint. You own what you write across its whole lifecycle, including when it breaks\n\nThere is little process versus a bigger organization, and what we're planning to adopt is mainly for the ai agents to support you\n\nYou will sometimes be wrong, ship it, and fix it. That's okay\n\nWe're in the office at Islands Brygge 3-5 days a week, on the water. We prefer meeting face-to-face to stay in sync and move fast, with some support for remote working\n\n**What You'll Be Doing 🙌\n\n**\n\nTake operational ownership of the code you write across the entire software development lifecycle\n\nWork on production code, from customer-facing features to bug fixing\n\nDesign new features and see them through to completion\n\nHelp build and evolve our services and infrastructure to stay ahead of our growth curve\n\nTurn conceptual ideas into production-ready, scalable features\n\nBe a big part of finding the best solutions to our daily challenges\n\n**Requirements\n\n**Where you lack a line on this list but can convince us you'll close the gap fast, apply anyway. We mean that literally: one of the best engineers we've had joined us as a junior and was senior within two and a half years.\n\n**Three things we do need:\n\n**\n\nA proven track record - or evidence of extraordinary ability. We care far more about what you've actually built than how many years you've been doing it. Senior engineers should have a track record of shipping and maintaining serious production software. But if you're earlier in your career and you've built something remarkable, we want to hear about it. We're looking for exceptional people, not arbitrary numbers on a CV\n\nStrong TypeScript, and the judgement that comes from shipping real software. You know the language deeply, but more importantly, you know what good production code looks like. You can make architectural tradeoffs, keep a codebase healthy as it grows, and tell the difference between an interesting technical problem and one that actually matters\n\nStrong database fundamentals, and an AI-native mindset. You understand PostgreSQL and relational data deeply — schema design, query performance, indexes, migrations, monitoring, and what happens when your database meets millions of messy real-world records. And AI isn't something you're interested in. It's already part of how you work. You use machines to build machines. You automate aggressively. You constantly look for ways to make yourself and the team 10× more effective. This is non-negotiable for us\n\n**Nice to have, genuinely not required:\n\n**\n\nNext.js specifically (Server Components, Server Actions, API routes). If you know modern React, you'll be fine within a fortnight\n\nWeb scraping at genuinely awkward scale\n\nWorking with large-scale data: data pipelines, analytics, transformations, or making sense of millions of messy records\n\nGeneral ESG, procurement or supply-chain domain knowledge\n\n**Benefits\n\n****Practical stuff 📋\n\n**\n\nSalary: band between 50-60k / month for a senior engineer\n\nESOP: every full-time Responsibly'er owns a piece of the company. We'll show you the actual numbers, strike price, vesting, and what your slice could be worth at a few exit scenarios, before you have to decide anything\n\nLocation: Copenhagen. You'll need to be here or firmly planning to move, and to have the right to work in Denmark. English is our working language\n\nOffice: Islands Brygge, right on the water. Great lunch, great coffee, obligatory ping-pong table. Roughly three days a week together, flexible on which and on hours\n\n**Also 🤩\n\n**\n\nEnthusiastic, highly talented teammates from all backgrounds, always ready to share knowledge, support, and a beer\n\nStrong personal and professional development in a high-growth environment\n\nAnnual company events and Friday bars\n\nReal impact. 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