Staff Applied AI Software Engineer (Python) - Patient (x/f/m)

Your Impact We are looking for a Staff Software Engineer to join 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, and 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 6+ years of experience as a software engineer, with at least one significant experience using Python Have gone through the full lifecycle of an AI product at scale, from initial evaluation and launch to iterations based on results in production 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 with technical constraints Are comfortable speaking and writing in English in your day-to-day work with the team It would be fantastic if you: Have the ability to adapt to the most efficient technologies to solve issues Have experience with agentic systems in production Have experience in the medical domain Life at Doctolib Tech Our solutions are built on a single fully cloud-native platform that supports web and mobile app interfaces, multiple languages, and is adapted to country and healthcare specialty requirements. Our stack is composed of Rails, TypeScript, Java, Python, Kotlin, Swift, and React Native. We leverage AI ethically across our products to empower patients and health professionals. Discover our AI vision here . Want to learn more about our tech culture and environment? Visit the Doctolib Tech site . What we offer Free comprehensive health insurance for you and your children Parent Care Program: receive additional leave on top of the legal parental leave Free mental health and coaching services through our partner Moka.care For caregivers and workers with disabilities, a package including an adaptation of the remote policy, extra days off for medical reasons, and psychological support Work from EU countries and the UK for up to 10 days per year, thanks to our flexibility days policy Up to 14 days of RTT A subsidy from the work council to refund part of the membership to a sport club or a creative class Lunch vouchers (Swile card) worth €8.50 per working day, with €4.50 covered by Doctolib 50% reimbursement of your public transport subscription Relocation support in case of international mobility Access to the best AI tools for coding, development and dedicated training Our interview process Recruiter Interview Coding Interview System Design Interview Behavioral Interview At least one reference check We want yo ... (truncated, view full listing at source)