{"id":2272302,"url":"https://alion.io/job/supplios-full-stack-software-engineer-midsenior","title":"Full-Stack Software Engineer (Mid/Senior)","company":{"id":2654254,"name":"Supplios","domain":"supplios.com","url":"https://alion.io/company/supplios","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":"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":["Denmark"],"countries":["DK"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":85000,"max_usd":175000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":9},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Python","optional":false},{"name":"TypeScript","optional":false},{"name":"AWS","optional":true},{"name":"Claude","optional":true},{"name":"Cloudflare","optional":true},{"name":"Django","optional":true},{"name":"JavaScript","optional":true},{"name":"OpenAI","optional":true},{"name":"RAG","optional":true},{"name":"Vue.js","optional":true}],"status":"live","first_seen_at":"2026-09-20T22:00:00Z","employer_posted_date":null,"last_verified_at":"2026-09-20T22:00:00Z","board_verified":false,"closed_at":null,"days_open":47,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":47},"description":"Highlights:\n\nFull-Stack Python/TS engineer needed for a B2B SaaS startup in Copenhagen (with plenty of traction!)\n\nWe have a lean, get-stuff-done team. No annoying extra management layers or unnecessary bureaucratic rituals. And we are \"AI-forward\" in our own development practices.\n\nYou will own features end to end, from the data model through to the screen, on a platform that manufacturers rely on to keep production lines running.\n\nYou will work in a small engineering team, directly with the person who decides what we build, and the problems you spend your time on are hard because the domain is hard, not because the organization is.\n\nWe're building legitimately useful tools for the industries and companies that make the world go around.... manufacturers. Both AI-tools and just \"plain-old-good-software\" tools.\n\nAbout Supplios\n\nManufacturers live or die by their supply base. Sourcing the wrong supplier, onboarding one slowly, failing to qualify one properly or losing track of a non-conformance can stop a production line and cost millions. Yet most manufacturers still run these relationships across email chains, spreadsheets and shared drives.\n\nSupplios is a supplier collaboration platform for manufacturers in automotive and industrial sectors. We cover the full supplier relationship: sourcing, onboarding, qualification, day-to-day collaboration, compliance and supplier quality, all in a modern cloud based platform that is easy for manufacturers to implement and operate. It is built specifically for the way automotive and industrial manufacturers actually work.\n\nWe are headquartered in central Copenhagen and already serve customers globally in our vertical, including some of the most demanding names in automotive. We have grown to this point almost entirely on product strength, domain credibility and word of mouth.\n\nThe platform now covers more ground than the team that built it. We are hiring engineers to keep that pace sustainable, and to go deeper on the parts of the product our customers are pushing hardest.\n\nThe role\n\nYou will join a small engineering team and work across the whole stack: Python on the backend, TypeScript on the frontend and in the AI layers. There is no split between people who design and people who implement. You will take a problem from a customer conversation or a product decision through to something running in production for real manufacturers.\n\nYou will work directly with our co-founder and CEO, who is a hands-on product builder himself. That means short conversations instead of tickets thrown over a wall, and it means your questions about why something should work a certain way get answered by the person who decided it.\n\nThe domain is genuinely complicated, and that is the interesting part. Supplier relationships in automotive involve deep hierarchies, long-running approval processes, strict audit requirements and a lot of state that has to be exactly right. Modeling that well is most of the job.\n\nTitle and level flex with experience. We are open to strong mid-level engineers and to senior engineers who want more scope than their current company gives them.\n\nWe work together from our office in central Copenhagen. This is primarily an in-office role: at this stage, and on a codebase with this much implicit context, working through problems with the rest of the team in person is much faster than doing it in writing. Sensible flexibility when you need it is a given; full-time remote is not what we are offering.\n\nOur current stack:\n\nBackend: Python / Django\n\nFrontend: Vue (but no specific Vue experience is needed)\n\nInfrastructure: AWS (mostly)\n\nAgents: Cloudflare (TypeScript) + Claude & OpenAI platform\n\nWhat you will do\n\nBuild features end to end, from data model and backend logic through to the TypeScript frontend our customers actually click on.\n\nBuild end-to-end / front-to-back AI features (in-app AI assistants, background worker agents, email-routing agents, customer-configurable agent framework components)\n\nDesign and evolve the relational data model that sits under supplier relationships, approvals and quality records.\n\nTake vaguely defined customer problems and turn them into something specific enough to build, then build it.\n\nWork on integrations between Supplios and customer systems (ERP and adjacent tooling), where failures have visible consequences for a production line.\n\nImprove the parts of the codebase that need it, rather than routing around them.\n\nReview other people's code and have yours reviewed; we keep the loop tight and unbureaucratic.\n\nHelp keep the platform healthy in production across our regions: errors, performance and the boring things that keep customers trusting us.\n\nTake part in product decisions. Engineers here are expected to have opinions about what we build, not just how.\n\nWhat we are looking for\n\nEssential\n\nProfessional experience with Python. This is not negotiable; the backend is Python and you need to be effective in it.\n\nSolid TypeScript experience and genuine comfort working on the frontend.\n\nExperience building and running SaaS products, including the part after launch where real users depend on them.\n\nAI-forward development techniques. (This does not mean you no longer write code.)\n\nA track record of owning work end to end without waiting to be told what to do next.\n\nThe temperament for a small, senior company: high ownership, low ceremony.\n\nYou want to work primarily from an office in central Copenhagen, with a small team.\n\nNice to have\n\nGenuinely a plus, not a requirement. Nobody has all of these.\n\nExperience with B2B enterprise SaaS, especially where customers are large and demanding and implementations are not self-serve. This is a significant plus.\n\nExperience with complex relational data modeling, and with large, long-lived codebases that you did not write yourself. A big plus.\n\nExperience building AI-based products, using the latest frameworks/harnesses and infrastructure components (including RAG) is a significant plus.\n\nFamiliarity with any of: domain-driven design, the actor model, finite state machines, CQRS, event-driven architecture. We use these ideas where they earn their place, and it helps if the vocabulary is already yours.\n\nStartup experience, particularly early stage. A significant plus.\n\nKnowledge of manufacturing, automotive or supply chain. Useful, but we can teach you the domain; we cannot teach you the craft, so do not rule yourself out on this.\n\nLanguage\n\nEnglish is the only important language for this position; we work in English, and so do our customers. Danish language skills are not required.\n\nWhy this role is worth your time\n\nThe scope is unusually large for the stage. You are one of a small number of engineers on a platform that serves demanding customers globally. What you build ships, and it ships soon.\n\nNo layers between you and the decisions. You work directly with the co-founder and CEO, who runs product. There is no committee to navigate and nobody to translate your work for you.\n\nHard problems that are not artificially hard. The complexity comes from the domain (hierarchies, state, audit trails, integrations that must not fail), not from organisational overhead.\n\nReal customers already, and real gaps. The product has paying customers in automotive and clear places where it needs to get better. Both halves of that are true, and both are why this is a good job.\n\nHow to apply\n\nSend your CV and a short note on why this role interests you to . Work examples will help.\n\nApply by email\n\nSend an email to \n\nPlease include your CV / resume, and a brief note about why you're interested in the position.\n\nThanks!","description_format":"text","description_chars":7682,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Supply Chain"],"lifecycle":[{"event":"open","at":"2026-10-11T07:28:46Z"}],"visa":[],"liveness":{"score":11,"band":"cold","label":"Long shot","p_open":0.4,"p_active":0.616,"p_room":0.45,"age_days":47,"expected_fill_days":31,"reasons":["seen:47","win:tail"],"computed_at":"2026-11-07T05:47:08Z"},"pay":null,"html_url":"https://alion.io/job/supplios-full-stack-software-engineer-midsenior","json_url":"https://alion.io/job/supplios-full-stack-software-engineer-midsenior.json","meta":{"generated_at":"2026-11-07T07:00:13Z","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":1552,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-08T00:00:00Z"}},"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":2654254},"rest":"https://alion.io/mcp/rest/get_company?id=2654254"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsupplios-full-stack-software-engineer-midsenior"},{"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%2Fsupplios-full-stack-software-engineer-midsenior"},{"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%2Fsupplios-full-stack-software-engineer-midsenior"},{"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/supplios-full-stack-software-engineer-midsenior\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsupplios-full-stack-software-engineer-midsenior"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":2272302}},{"tool":"search_jobs","arguments":{"company":"supplios.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":2272302},"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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