Senior Software Engineer (Agentic AI) - Python

Your Impact

We are looking for a Senior Software Engineer to join the AI Health Companion stream within the Patient domain.

Your mission will be to transform the Doctolib app into a full health companion powered by AI, helping patients manage their health with accuracy, empathy, and safety. You will work in a feature team developing an AI-powered chat built to answer patients' questions about their or their loved ones' health.

Working in the tech team at Doctolib means building innovative products and features to improve the daily lives of care teams and patients.

What you'll build

Your responsibilities include but are not limited to

Design, ship, and operate production-grade agentic systems that answer key health challenges for patients

Partner with data scientists to design and implement evaluation pipelines, security/safety guardrails, and metrics

Validate hypotheses quickly with offline evaluation datasets and A/B tests on real traffic

Develop and maintain core agentic capabilities including memory, reasoning orchestration, and tool adapters, ensuring strong observability, fallback mechanisms, and fail-safe behaviors

Own performance, observability and security: monitoring dashboards, SLO/SLI, security posture

Ensure privacy and security by design

Contribute to cross-functional initiatives that shape Doctolib's future AI platform and best practices in building agentic systems

What you'll bring

Before you read on: if you don't have the exact profile described below, but you feel this job description matches your skill set, we still encourage you to apply.

You'll be a great fit if you

Have 4+ years of experience as a software engineer, with at least one significant experience using Python

Understand and promote best practices related to the software development life cycle such as automated testing, good use of CI/CD, and DevOps practices

Are product-oriented and comfortable guiding your teammates to suggest tradeoffs to balance business needs w