Software Engineer – AI & Generative Applications

Our client, a leading organization in the energy transmission sector, is seeking a Software Engineer to join a specialized team focused on developing AI-centric applications. The role involves designing and implementing reliable AI solutions using LLMs and agentic workflows to support a sustainable energy infrastructure.

• Design and implement AI-powered applications using LLMs, RAG, and agentic workflow patterns.
• Build robust backend services, APIs, and necessary integrations for AI-centric solutions.
• Optimize retrieval pipelines including embeddings, vector search, and hybrid search.
• Implement comprehensive evaluation, testing, monitoring, and observability for AI applications.
• Define safe and practical patterns for tool use, human-in-the-loop approval, and agentic behavior.
• Collaborate with stakeholders to support model selection based on quality, cost, and security.
• Troubleshoot issues related to retrieval quality, latency, and cost inefficiency in AI systems.

• You have 5+ years of experience in backend or full-stack development.
• You bring 1+ years of experience integrating LLMs or generative AI services into software applications.
• You possess strong programming skills in Python.
• You have practical knowledge of RAG, embeddings, vector search, and retrieval quality improvement.
• You're experienced with MCP, A2A, tool calling, or multi-agent workflows.
• You have experience designing maintainable services with proper testing, logging, and CI/CD practices.
• You bring an understanding of AI application evaluation, including quality metrics and regression testing.
• You have a good understanding of cloud-native application development.
• You're a proactive communicator with a security-conscious mindset and the ability to explain technical trade-offs.
• You are fluent in English with active knowledge of French or Dutch.

Nice to Haves

• Familiarity with the Azure cloud environment.
• Experience with .NET or C#.
• Experience with AI frameworks such as LangGraph, LangChain, or Semantic Kernel.
• Experience with Microsoft AI ecosystem tools such as Microsoft Agent Framework or Foundry.
• Knowledge of vector databases or enterprise search platforms in regulated environments.

• Start date: ASAP
• Location: Brussels
• Working model: Hybrid
• Contract: open to both permanent employees and freelancers