Senior AI Engineer

About the role

Sopra Steria's Data & AI team is looking for a Senior AI Engineer to join its Data Science & AI Engineering Practice. You will help clients turn AI ideas into practical, scalable and responsible solutions, working on traditional AI, NLP, LLMs, generative AI, agentic AI, trustworthy AI and MLOps. The team is multidisciplinary, combining data engineering, architecture, AI, analytics, governance and visualization.

Key responsibilities

• Design, build and industrialize AI solutions that solve concrete business problems and run in real operational environments
• Train, fine-tune, improve and deploy ML and AI models, from machine learning and NLP to LLMs, semantic search, RAG and conversational AI
• Write production-ready Python code to serve online, batch and real-time models, and build software components for AI use cases
• Work closely with Data Scientists, MLOps Engineers, Data Engineers and AI Architects to integrate the full solution
• Help build new AI solutions from the ground up or support clients in running and improving existing ones over the medium to long term

Required profile

• At least 4 years of experience as a Machine Learning Engineer, Data Scientist, MLOps Engineer or in a similar role
• Master or PhD in Machine Learning, Artificial Intelligence, Computer Engineering or a related field
• Able to coach others, give technical advice and direction, and work independently
• Fluent English, and fluent Dutch and/or French

Required skills

• Experience with traditional NLP, LLMs and conversational AI in both experimentation and production
• Production experience with vector databases for semantic search and RAG
• Strong software engineering background and production-ready Python code
• Experiment tracking, model monitoring, LLM and NLP evaluation, and deployment strategies
• Machine learning lifecycle, MLOps and DevOps principles
• At least one cloud provider and good knowledge of the data ecosystem

What we offer

• Employee benefits including mobility options (including a company car), insurance coverage, meal vouchers and eco-cheques
• Continuous learning through the Sopra Steria Academy
• Career development opportunities locally and internationally