Senior AI Engineer— RAG Applications JP053929, Brussels

Senior AI Engineer (RAG / Azure / LLM)

Brussels, Belgium (Hybrid) Full-time | Contract until December 2026 (9 months) Possible extension About the Role

We are looking for a

Senior AI Engineer

to join an

AI Centre of Excellence (AI CoE)

and contribute to the development of an enterprise-grade

AI-powered knowledge search platform

. You will work on a

RAG-based (Retrieval-Augmented Generation) solution

designed to serve thousands of internal users, enabling intelligent, bilingual knowledge discovery across the organization. This is a hands-on role where you will help transform a

high-level AI architecture into a production-ready, scalable, and maintainable system

. Key Responsibilities

AI&RAG Development Design and implement

end-to-end RAG pipelines

(retrieval, reranking, LLM orchestration, citations) Develop

prompt templates and guardrails

to ensure safe and accurate outputs Work with

Large Language Models (LLMs)

to deliver high-quality AI responses Data Ingestion&Processing Build ingestion pipelines integrating

CMS and document platforms (e.g., SharePoint) Implement

data chunking, embedding, and indexing strategies Ensure proper

access control (ACL propagation) and security trimming Cloud&Infrastructure Deploy and manage AI services on

Microsoft Azure (Azure OpenAI, API Management, AI Content Safety) Work with

Azure Kubernetes Service (AKS)

for containerized workloads Develop and maintain

Infrastructure-as-Code using Terraform and Helm Use

Azure DevOps pipelines

for CI/CD Evaluation&Optimization Build evaluation frameworks to measure

AI performance and relevance Monitor and optimize system performance during early production phases Continuously improve model outputs and system efficiency Tech Environment

Azure Services:

Azure OpenAI, Azure API Management, Azure AI Content Safety Infrastructure:

AKS (Kubernetes), Terraform, Helm Data&AI:

Vector databases, RAG pipelines, LLMs Languages:

Python DevOps:

Azure DevOps Required Skills&Experience

Strong experience with

Python and AI/ML development Hands-on experience with

RAG architectures and LLM integration Experience with

Azure cloud services and AI platforms Solid understanding of

Kubernetes (AKS) and containerized applications Experience with

Terraform and Infrastructure-as-Code Familiarity with

vector databases and semantic search Experience setting up

CI/CD pipelines (Azure DevOps) Languages

French or Dutch– Native / Bilingual proficiency English – Full professional proficiency Project Details

Start: ASAP Duration: Until 31 December 2026 Location: Brussels (Hybrid model)

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