{"id":2626946,"url":"https://alion.io/job/eneco-senior-backend-engineer-net-quality-engineering","title":"Senior Backend Engineer .NET (Quality Engineering)","company":{"id":1817445,"name":"Eneco","domain":"eneco.nl","url":"https://alion.io/company/eneco-nl","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Career sitemap","truth_index":{"grade":"B","score":75,"open_postings":8,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":23,"computed_at":"2026-10-26T05:57:25Z"}},"role":"QA","role_family":"QA","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Rotterdam, Netherlands"],"countries":["NL"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":52000,"max_usd":107000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":11},"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":".NET","optional":false},{"name":"Apache Kafka","optional":false},{"name":"Azure","optional":false},{"name":"C#","optional":false},{"name":"CI/CD","optional":false},{"name":"Docker","optional":false},{"name":"Kubernetes","optional":false},{"name":"RabbitMQ","optional":false}],"status":"live","first_seen_at":"2026-10-15T14:06:13Z","employer_posted_date":"2026-10-15","last_verified_at":"2026-10-27T04:31:08Z","board_verified":true,"closed_at":null,"days_open":11,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":11},"description":"At Eneco we work towards one clear goal: being climate-neutral by 2035. A big part of that is flexibility, using renewable energy at the right moment. Our Virtual Power Plant (VPP) links many energy sources and steers them centrally as one portfolio.\nMore and more of that flexibility sits \"behind the meter\", at our customers' sites: large batteries, solar panels and other installations. Your services make it possible for these smaller assets to join the market together. That means more green energy used well, and less need for fossil backup. You do this in a team that takes engineering seriously, shares what it learns, and gives you room to grow as a technical leader.\nYou build and maintain backend services and integrations in .NET/C#.\nYou develop solutions that optimise behind-the-meter assets and connect data flows so smaller assets can trade as part of Eneco's pool.\nYou design and maintain automated integration and end-to-end tests, so the team can trust every release of our services and integrations.\nYou run load and performance tests to find bottlenecks, scalability risks and reliability issues before they reach production.\nYou keep improving test automation, test coverage and feedback cycles, so developers know quickly when something breaks.\nYou build quality into features from the start, instead of testing them afterwards.\nYou use AI tools across your work, including test generation, refactoring and debugging, and review the output critically.\nYou drive Proofs of Concept and work with architects on system design.\nYou mentor medior and junior engineers through code reviews and technical guidance.\nYou share on-call duty for a system that runs 24/7.\nReliable, scalable services that connect distributed assets to our VPP and keep running 24/7.\nQuality built into the development lifecycle through automated testing.\nNew features and services that ship with the right integration and E2E test coverage.\nPerformance and scalability, backed by load and performance testing.\nFaster, more reliable feedback for the team through more automation.\nTechnical ownership of your components, including tackling technical debt and reliability risks early.\nAI-assisted work that meets the same bar for security, quality and maintainability as anything else.\nA stronger team through reviews, mentoring and shared standards.\nYou have around 7 years of backend experience in .NET/C# and have built complex, high-availability distributed systems.\nYou know event-driven architecture and async messaging, for example Kafka, Azure Event Hubs or RabbitMQ.\nYou're comfortable with Azure, CI/CD, Docker/Kubernetes, microservices, and both relational and non-relational data.\nYou have a strong Quality Engineering mindset: to you, quality, testability and automation are part of building software.\nYou have practical experience with automated integration and E2E testing.\nYou've done load and performance testing and know how to investigate performance and scalability risks.\nYou're a software engineer first. You enjoy building features and the tests that prove they work, rather than focusing on test automation alone.\nYou use AI-assisted development tools in your daily work, check their output critically, and like sharing what works with your team.\nYou're happy to take on-call responsibility, live in the Netherlands and speak English fluently.\nKnowledge of energy markets, optimisation or aggregation platforms is a plus. Don't have it yet? You'll learn the domain here.\nRecognise yourself in most of this, but not every requirement? We'd still love to hear from you.\nYou join an engineering team working on the platforms behind our Virtual Power Plant. You work closely with fellow engineers, architects and colleagues from other disciplines. We review each other's code, share what we learn, and explore AI and automation together, so you get plenty of room to bring in your own ideas.\nYou build .NET/C# services that connect large batteries, rooftop solar and other customer-side assets to our Virtual Power Plant.\n\nYou make quality part of how features get built: automated integration and E2E tests, plus load and performance testing for a system that runs 24/7 in live energy markets.\n\nYou help the team work smarter with AI-assisted development, from test generation to debugging.","description_format":"text","description_chars":4301,"description_truncated":false,"requirements":{"experience_years_min":7,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"English","level":"Advanced (C1)","optional":false}]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Energy Efficiency","Energy Management"],"lifecycle":[{"event":"open","at":"2026-10-15T15:29:35Z"}],"visa":[],"liveness":{"score":78,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.871,"p_room":0.9,"age_days":10,"expected_fill_days":23,"reasons":["conf:1","velocity","win:mid"],"computed_at":"2026-10-26T05:57:25Z"},"pay":null,"html_url":"https://alion.io/job/eneco-senior-backend-engineer-net-quality-engineering","json_url":"https://alion.io/job/eneco-senior-backend-engineer-net-quality-engineering.json","meta":{"generated_at":"2026-10-27T04:42:26Z","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":4286,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-28T00:00:00Z"}},"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":1817445},"rest":"https://alion.io/mcp/rest/get_company?id=1817445"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Feneco-senior-backend-engineer-net-quality-engineering"},{"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%2Feneco-senior-backend-engineer-net-quality-engineering"},{"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%2Feneco-senior-backend-engineer-net-quality-engineering"},{"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/eneco-senior-backend-engineer-net-quality-engineering\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Feneco-senior-backend-engineer-net-quality-engineering"}]}