Full time

Staff Software Engineer (AI Backend Services)

Posted by Pfizer • Paris, Île-de-France, France

📍 Paris, Île-de-France 🕒 March 01, 2026

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About the Role

ROLE DESCRIPTION
The AI Backend Python Engineer (Staff) will provide technical leadership and define the architecture for backend systems that power the next generation of generative AI applications and large language model
(LLM) integrations. This role focuses on driving strategic technical direction, designing platform-level
solutions using Python, FastAPI, and AWS, and influencing engineering practices across the organization.

KEY RESPONSIBILITIES
Define technical strategy and architecture for Python-based AI backend platforms (on FastAPI) that support LLM integration, generative AI pipelines, and AI agent orchestration
Architect scalable, reliable, and secure systems on AWS infrastructure (Lambda, EKS) that serve as the foundation for multiple teams
Drive technical decisions that impact organization-wide engineering practices and platform capabilities
Design and champion AI system observability using LangChain, Langfuse, and ...
                

Job Details

Location Paris, Île-de-France
Job Type Full time
Category Computer Occupations
Posted March 01, 2026
Deadline April 10, 2026

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