We are looking for a Staff Software Engineer to join the Patient domain at Doctolib and help us revolutionize how patients manage their health.   As a software engineer, you'll work on a project to transform the Doctolib app into a full health companion powered by AI, starting with an AI-powered chat built to answer patients' questions about their or their loved ones' health with accuracy, empathy, and safety. Working in the tech team at Doctolib involves building innovative products and features to improve the daily lives of care teams and patients. We work in feature teams in an agile environment, while collaborating with product, design, and business teams.   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
• Quickly validate hypotheses 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

About our tech environment

• Our solutions are built on a single fully cloud native platform that supports web and mobile app interfaces, multiple languages, and is adapted to the country and healthcare specialty requirements. To address these challenges, we are modularizing our platform run in a distributed architecture through reusable components.
• 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 and learn about our first AI hackathon here!

Who you are 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.

• 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 (you build it - you run it)
• Are product oriented and comfortable guiding your teammates to suggest tradeoffs to balance business needs with technical constraints
• Are comfortable speaking & writing in English in your day-to-day work with the team

Now 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

What we offer

• Free comprehensive health insurance for you and your children
• Parent Care Program: receive one additional month of 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
• Work Council subsidy to refund part of sport club membership or creative class
• Up to 14 days of RTT
• Lunch voucher with a Swile card

The interview process

• Recruiter Interview
• Feature Building Interview
• System Design Interview
• Behavioral Interview
• At least one reference check

Job details

• Permanent position
• Full-time
• Loation: Paris, France
• Start date: as soon as possible

If you would like to find out more about tech life at Doctolib, feel free to read our latest Medium blog articles!   At Doctolib, we are committed to improving access to healthcare for everyone. This translates into our recruitment process. We evaluate candidates based solely on qualifications and motivation, without any form of discrimination.   The more diverse ideas are heard, the more our product will truly improve healthcare for all. You are welcome to apply to Doctolib, regardless of your gender, religion, age, sexual orientation, ethnicity, disability.   To ensure equal opportunities, we invite you to exclude personal information (e.g. pictures, age) from your applications. If you require any accommodation, please let us know for support during the hiring process.   Join us in building the healthcare we all dream of!   All information provided is processed by Doctolib for application management. For data processing details, click here. Please contact hr.dataprivacy(at)doctolib.com for inquiries or to exercise your rights.