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# Senior Software Engineer, AI-agents & architectuur voor €4000 - €5500 bruto per maand

- **Company:** Fooks
- **Location:** Nijmegen, Netherlands (Remote available)
- **Experience:** Expert
- **Salary:** €4,000.0 - €5,500.0
- **Contract:** Permanent contract
- **Skills:** Afas (Software), Application Programming Interfaces (APIs), Artificial Intelligence, Software as a Service, Event-Driven Programming, OAuth, Open Source Technology, Large Language Models, Prompt Engineering
- **Published:** July 31, 2026
- **Apply:** https://www.careerjet.nl/jobad/nl3e3c9d5d203ed25d497732d0291fac8d

## About the Role

* Je hebt meerdere jaren productie-ervaring als backend engineer in .NET en weet wat er misgaat als een systeem groeit.
 * Je hebt ervaring met of duidelijke interesse in event-driven architecturen: messaging, eventual consistency en het ontkoppelen van services.
 * Je hebt ervaring met LLM-API's op productieniveau: prompt engineering, structured outputs, function calling en een agentic framework (LangGraph, LangChain, ADK of vergelijkbaar).
 * Je hebt een tool-laag of MCP-servers in productie gedraaid, of je staat te trappelen om dat op te zetten.
 * Je hebt AI-features naar echte gebruikers geshipt. Evals en benchmarking zijn vertrouwde begrippen voor je.
 * Deze laag is je oprechte interesse. Je blijft erin duiken, ook als niemand het vraagt, en je krijgt collega's mee in wat je vindt.
 * Je pakt eigenaarschap, bent comfortabel met ambiguïteit en communiceert helder, ook met minder technische collega's.

Mooi meegenomen

 * Observability voor AI-systemen.
 * RAG-patronen: chunking, embeddings, hybrid search, reranking en vector databases.
 * OAuth en integraties met externe SaaS-API's.
 * Kennis van payroll, HR-processen of de horecabranche, of ervaring met AFAS.
 * Bijdragen aan open source in de agent- of LLM-hoek.



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