{"id":783016,"url":"https://alion.io/job/enersee-full-stack-developer","title":"Full Stack Developer","company":{"id":691079,"name":"Enersee","domain":"enersee.ai","url":"https://alion.io/company/enersee","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Recruitee","truth_index":{"grade":"B","score":75,"open_postings":4,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-11-06T05:58:05Z"}},"role":"Backend","role_family":"Backend","seniority":"middle","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Antwerp, Belgium"],"countries":["BE"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":35000,"max":50000,"currency":"EUR","period":"year","gross":null,"usd_annual":56084},"salary_estimate":null,"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"ClickHouse","optional":false},{"name":"Docker","optional":false},{"name":"GitHub Actions","optional":false},{"name":"MQTT","optional":false},{"name":"PostgreSQL","optional":false},{"name":"Python","optional":false},{"name":"React.js","optional":false},{"name":"TimescaleDB","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2025-10-21T10:58:22Z","employer_posted_date":"2025-10-21","last_verified_at":"2026-11-06T17:13:10Z","board_verified":true,"closed_at":null,"days_open":381,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":380},"description":"Help Europe’s biggest buildings waste less energy.\nHelp Europe’s biggest buildings waste less energy.\nEnersee is growing fast. We are scaling to the next phase and building the core of our energy efficiency platform to help hospitals, offices, factories, and cities become radically more energy efficient. To make that happen, we need you!\nWe’re looking for a Full Stack Developer who thrives on shipping features end-to-end. From frontend UI to backend logic, you’ll help us deliver the technology that powers Enersee’s impact.\nWhy this role matters\nBuildings are responsible for 40% of global energy use and a third of greenhouse gas emissions. That’s a massive opportunity-and we’re tackling it head-on.\nSoftware is how we turn data into impact. As a Full-Stack Developer at Enersee, you’ll work across the stack to build the features that make energy audits faster, reporting simpler, and pricing smarter. You’ll make complex energy systems intuitive and scalable-helping our platform grow alongside our mission.\nWhat you’ll do\nBuild & maintain end-to-end features across frontend, backend, and data layer.\n\nImprove workflows like energy audits, reporting, and dynamic pricing integrations.\n\nIntegrate and optimize connectors (Clickhouse, TimescaleDB, MQTT).\n\nContribute to system architecture improvements and sprint planning.\n\nBring advanced UI components (Sankey diagrams, virtual meters, etc.) to life.\n\nRequirements\nOur ideal hire\n4+ years of full-stack development experience.\n\nStrong knowledge of React and Python.\n\nExperience with scalable APIs and data-driven applications.\n\nFamiliarity with tools likePostgreSQL, Clickhouse, Docker, GitHub Actions.\n\nBonus: experience in energy systems, IoT platforms, or data orchestration.\n\nIdeally, you have solid experience in Data Science\n-> Since we are growing fast, we are looking for the real builders who want to be in both the Antwerp and Brussels offices on a weekly basis.\n\nDon’t check every box?\nSmart people don’t always follow straight lines. If you believe in what we’re doing and think you can help us grow, we want to hear from you.\nWhat we offer you in return\nWe want you to grow with us and benefit from the impact you make.\nCompensation & Benefits - Belgium style.\nGood salary, based on your experience\n\nPerformance bonus (up to €25K/year)\n\nStock options-you grow, we grow\n\n13th month salary + double vacation pay\n\nCompany car (worth €35-50K) or mobility budget + extra salary\n\nMeal vouchers (€8/day) + Eco vouchers (€250/year)\n\nCharging card for your EV (also usable privately)\n\nHospital insurance for you (free) + discounts for family\n\nLaptop + smartphone, incl. €30/month for phone & internet\n\nEnergetic offices in Brussels and Antwerp + hybrid work flexibility\n\nFun events, celebrations, and a team with an actual sense of humor\n\nWant to help build the clean energy future through tech, code, and impact?\nApply now and let’s talk. Feel free to reach out to our Recruitment team directly at \n. -She is eager to chat!","description_format":"text","description_chars":3016,"description_truncated":false,"requirements":{"experience_years_min":4,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Hybrid work","Stock options"],"hiring_locations":[{"name":"Belgium","iso":"BE","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Energy Efficiency","Energy Management"],"lifecycle":[{"event":"open","at":"2026-09-12T01:08:24Z"},{"event":"open","at":"2026-09-26T12:18:20Z"}],"visa":[],"liveness":{"score":6,"band":"cold","label":"Long shot","p_open":1,"p_active":0.217,"p_room":0.28,"age_days":380,"expected_fill_days":30,"reasons":["conf:0","win:tail","crowd:"],"computed_at":"2026-11-06T05:58:05Z"},"pay":{"stated_usd_annual":56084,"is_top_pay":false},"html_url":"https://alion.io/job/enersee-full-stack-developer","json_url":"https://alion.io/job/enersee-full-stack-developer.json","meta":{"generated_at":"2026-11-06T21:08:33Z","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":1134,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-07T00:00:00Z"}},"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":691079},"rest":"https://alion.io/mcp/rest/get_company?id=691079"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fenersee-full-stack-developer"},{"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%2Fenersee-full-stack-developer"},{"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%2Fenersee-full-stack-developer"},{"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/enersee-full-stack-developer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fenersee-full-stack-developer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":783016}},{"tool":"search_jobs","arguments":{"company":"enersee.ai","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":783016},"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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