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 with technical constraints
Have the ability to adapt to the most efficient technologies to solve issues
Are comfortable speaking and writing in English in your day to day with the team

It would be fantastic if you:

Have experience with traditional ML or 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 abroad 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
Enrollment in Doctolib's long-term employee value sharing plan called DoctoGrowth
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 your experience to be clear, respectful, and transparent. Learn more about our hiring process on our candidate experience page.

Job details

Permanent position
Tech stack: Python
Full-time
Paris, France
Start date: as soon as possible

We welcome everyone

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, or 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!

Your data privacy

All information provided is processed by Doctolib for application management. For data processing details, click here: France. Please contact hr.dataprivacy(at)doctolib.com for inquiries or to exercise your rights.