Position Title: Senior Python Developer – LLM-oriented and backend development

Location: Anderlecht, Belgium

Duration: 6 Months with possible extension

Languages: English

Work Modality: Hybrid

Start Date: October 1st, 2025

End Date: March 31st, 2026 (renewable)

Context

• Team: AI Engineering Team within internal IT

• Team size: ~10 people (internal and external), including 2 externals dedicated to the project

Typical Day

• Development of Python-based agents integrating language models (LLMs)

• Collaboration with the Microsoft Copilot Studio team

• Building backend applications (FastAPI or equivalent)

• Interaction with business experts to understand needs and data

• Short projects (~2 months), often in parallel, requiring agility and autonomy

Years of Experience

• Minimum 8 years of experience in software development

Must Have

• Strong Python skills

• Experience with FastAPI or similar frameworks (Flask, etc.)

• Knowledge of LLM concepts: RAG, grounding, context engineering

• Ability to code reliable and maintainable backend applications

• Experience in data-oriented projects (data analytics or data science)

• Fluent English

Ideal Candidate

• Python developer with strong data science sensitivity

• Able to understand business challenges and communicate with experts

• Comfortable in dynamic environments and short-term projects

• Experience in API development and LLM integration

Nice to Have

• Experience in the pharmaceutical sector (not mandatory)

• Knowledge of Azure OpenAI

• Experience with xg., Sky, Jarvis)

Language Requirements

• English only

Homeworking Policy

• Hybrid: 2 days per week onsite (HQ), with flexibility depending on the profile