Staff Applied AI Software Engineer (Python) - Patient (x/f/m)
Doctolib is looking for a Staff Software Engineer to join its Patient domain, with the mission of transforming the Doctolib app into a full health companion powered by AI. The engineer will work in a feature team developing an AI-powered chat that answers patients' questions about their own or their loved ones' health with accuracy, empathy, and safety. The role focuses on designing, shipping, and operating production-grade agentic systems, ensuring privacy and security by design. The permanent, full-time position is based in Paris, France, with a tech stack centered on Python.
Responsibilities
- ▹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, with strong observability and fail-safe behaviors
- ▹Own performance, observability and security, including 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
Requirements
- ▹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 in production
- ▹Understand and promote software development lifecycle best practices such as automated testing, good use of CI/CD, and devops practices
- ▹Product-oriented and comfortable guiding teammates on tradeoffs balancing business needs with technical constraints
- ▹Comfortable speaking and writing in English in day-to-day work
Nice to have
- ▹Ability to adapt to the most efficient technologies to solve issues
- ▹Experience with agentic systems in production
- ▹Experience in the medical domain
Soft skills
What we offer
- ▹Free comprehensive health insurance for you and your children
- ▹Parent Care Program with additional leave on top of legal parental leave
- ▹Free mental health and coaching services through Moka.care
- ▹Support package for caregivers and workers with disabilities
- ▹Work from EU countries and the UK for up to 10 days per year
- ▹Up to 14 days of RTT
- ▹Work council subsidy toward a sport club membership or creative class
- ▹Lunch vouchers (Swile card) worth €8.50 per working day, €4.50 covered by Doctolib
- ▹50% reimbursement of public transport subscription
- ▹Enrollment in Doctolib's long-term employee value sharing plan (DoctoGrowth)
- ▹Relocation support for international mobility
- ▹Access to the best AI tools for coding and development, plus dedicated training
About the company
Doctolib builds solutions on a single fully cloud-native platform supporting web and mobile interfaces, multiple languages, and country- and specialty-specific healthcare requirements. Its stack includes Rails, TypeScript, Java, Python, Kotlin, Swift, and React Native, and it leverages AI ethically to empower patients and health professionals. Doctolib is committed to improving access to healthcare for everyone and to a non-discriminatory recruitment process.