{"id":2079171,"url":"https://alion.io/job/io-digital-lead-back-end-engineer-net","title":"Lead Back-end Engineer (.NET)","company":{"id":45365,"name":"iO Digital","domain":"iodigital.com","url":"https://alion.io/company/io-tech-hub","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Recruitee","truth_index":{"grade":"A","score":87,"open_postings":74,"ghost_share":0,"stale_share":0.527,"repost_share":0,"time_to_fill_p50_days":35,"computed_at":"2026-10-12T06:55:09Z"}},"role":"Backend","role_family":"Backend","seniority":"lead","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":60000,"max_usd":127000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":11},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":".NET","optional":false},{"name":"AI Agents","optional":false},{"name":"C#","optional":false}],"status":"live","first_seen_at":"2026-10-08T09:17:09Z","employer_posted_date":"2026-10-08","last_verified_at":"2026-10-12T08:41:57Z","board_verified":true,"closed_at":null,"days_open":4,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":4},"description":"*fluency in Dutch is mandatory for this role\nWat ga je doen?\nBen jij een ervaren .NET-engineer die meer wil dan alleen code schrijven? Iemand die het overzicht houdt over een complex applicatielandschap, collega's stuurt én de vertaalslag maakt tussen techniek en klantbelangen? Dan is dit jouw rol.\nBij iO Campus Rotterdam ben je als Lead Back-end Engineer de technische spil van een multidisciplinair team van meer dan twaalf iO-collega's dat voor VfPf (Vervangingsfonds Participatiefonds) werkt, onze grootste opdrachtgever in Rotterdam. Je beheert en ontwikkelt een applicatielandschap van meer dan tien businessapplicaties. Je borgt de continuïteit en kwaliteit van het landschap en maakt daarmee impact op de maatschappij. VfPf speelt namelijk een cruciale rol in het goed functioneren van het Nederlandse basisonderwijs.\nNaast technisch werk draag je bij aan innovatietrajecten, waaronder aan de toepassing van AI-oplossingen. Je werkt samen met UX-designers, strategen en AI-engineers in een breed multidisciplinair klantteam.\nJouw verantwoordelijkheden:\nJe bent eindverantwoordelijk voor het gehele technische applicatielandschap van een of meerdere opdrachtgevers van iO: architectuur, kwaliteit, prioritering en doorontwikkeling;\n\nJe stuurt en begeleidt junior, medior en senior engineers waarbij je hen helpt groeien en de teamkwaliteit bewaakt;\n\nJe vertaalt klantbelangen en businessdoelstellingen naar heldere technische keuzes en prioriteiten;\n\nJe kent de stakeholders aan klantzijde: wie ze zijn, hoe ze de tooling gebruiken en waar knelpunten zitten;\n\nJe draagt bij aan innovatie- en AI-engineeringtrajecten binnen het applicatielandschap;\n\nJe optimaliseert je eigen ontwikkelworkflow actief met AI-tooling en kent de voor- en nadelen van gangbare taalmodellen.\n\nRequirements\nMinimaal 5 jaar ervaring met .NET (C#), bij voorkeur inclusief eerdere ervaring in een lead- of seniorrol;\n\nDiepgaande kennis van .NET-architectuur en design patterns;\n\nAantoonbaar vermogen om overzicht te houden over een complex applicatielandschap met meerdere systemen;\n\nErvaring met stakeholdermanagement - je schakelt op klant- én teamniveau;\n\nErvaring met agentic engineering en AI-tooling: je kent de werking van gangbare taalmodellen en weet hoe je jouw developer experience ermee verbetert;\n\nUitstekende beheersing van de Nederlandse taal, zowel mondeling als schriftelijk.","description_format":"text","description_chars":2375,"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":[{"language":"Dutch","level":"Advanced (C1)","optional":false}]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Consulting & Digital Transformation","Web Development Services","Digital Marketing"],"lifecycle":[{"event":"open","at":"2026-10-08T09:29:19Z"}],"visa":[],"liveness":{"score":63,"band":"ok","label":"Likely open","p_open":1,"p_active":0.632,"p_room":1,"age_days":3,"expected_fill_days":35,"reasons":["conf:3","stale_co","velocity","win:early"],"computed_at":"2026-10-12T06:55:09Z"},"pay":null,"html_url":"https://alion.io/job/io-digital-lead-back-end-engineer-net","json_url":"https://alion.io/job/io-digital-lead-back-end-engineer-net.json","meta":{"generated_at":"2026-10-12T12:52:54Z","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":20109,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-13T00:00:00Z"}},"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":45365},"rest":"https://alion.io/mcp/rest/get_company?id=45365"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fio-digital-lead-back-end-engineer-net"},{"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%2Fio-digital-lead-back-end-engineer-net"},{"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%2Fio-digital-lead-back-end-engineer-net"},{"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/io-digital-lead-back-end-engineer-net\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fio-digital-lead-back-end-engineer-net"}]}