Senior Forward Deployed Engineer (GenAI)

About the role

Sia, a global management consulting group founded in 1999, is hiring a Senior Forward Deployed Engineer in Luxembourg. The role bridges the gap between GenAI demos and production: you build GenAI applications (agents, RAG pipelines, copilots) and make sure they are adopted and embedded in daily workflows, delivering measurable value. You work at the intersection of data science, ML/platform engineering and client delivery.

Key responsibilities

• Work with client teams to identify where AI adds value and turn that into shippable solutions.
• Design and implement LLM-based systems: autonomous agents, RAG pipelines, workflow automation and conversational interfaces.
• Integrate solutions into clients' existing environments (APIs, databases, business tools) while complying with regulations such as GDPR and the EU AI Act.
• Train and win over sceptics, iterate until adoption sticks, and refine solutions in production with stakeholders.
• Act as the bridge between engineers and the board, and choose the right level of sophistication, semantic search, RAG, agents or fine-tuning for each customer.

Required profile

• Grounding in computer science, AI or a related technical field; a degree is usual but strong graduates with LLM projects are encouraged to apply.
• 2+ years of professional experience; trajectory matters more than seniority.
• Fluent in French and English; German is an advantage.
• Ability to take non-technical teams through a transformation and to communicate across levels.

Required skills

• Hands-on experience with LLMs: advanced prompting, RAG, fine-tuning, agent orchestration and evaluation of model outputs.
• Python, and willingness to learn the client's stack.
• Integrating APIs and heterogeneous systems.
• Bonus: LangChain, LlamaIndex, OpenAI SDK, Anthropic SDK, AWS/Azure/GCP, MLOps/LLMOps, vector databases.

What we offer

• Competitive salary with hospital insurance and a performance-related bonus.
• Learning budget, funded partner certifications (Anthropic, AWS, Databricks) and paid conference time.
• Hybrid working from the Luxembourg office.
• Mentor from day one and a path to lead engineer or client-facing architect.