Research Scientist (x/f/m)

Doctolib; Paris; Hybrid; EUR 90,000 - 130,000; Full time

Benefits offered by this job

Health insurance

Vacation policy

Mental health services

Relocation support

Lunch vouchers

Growth plan

Job summary

Doctolib's Doctolab team is seeking a Research Scientist to build accurate health models learned from scale health data. You will publish work and push models toward product-ready clinical features used by doctors and patients.

We value researchers who explain why questions matter and can work with real-world medical data. Paris-based with hybrid work allowed, joining a leading health-tech company.

Qualifications

• PhD or MSc with significant research experience in ML or related field.
• Strong publication track record at leading ML venues is a plus.
• Proficiency in Python and PyTorch; ability to work with real-world health data.

Responsibilities

• Develop world models of patient health from observational data.
• Create evaluation methods for calibration, robustness, and privacy.
• Collaborate with data science and product teams to deploy research.
• Publish in ML and health informatics venues; contribute to lab agenda.
• Engage with open science: benchmarks and open-source releases.
• Help define the lab’s research direction within the company.

Skills

PhD in ML

Research experience

Python

PyTorch

English fluency

Scientific communication

Education

PhD in ML / stats / CS or MSc with research

Tools

PyTorch

Python

Job description

Set a new pulse for healthcare!

We are looking for a Research Scientist to join the Doctolab team (Doctolib Clinical AI Research Lab).

Your mission is to build accurate, well-calibrated, and clinically reliable models of patient health, learned from health data at scale. The work is both fundamental and applied: you publish, and your models reach products used by doctors and patients. Doctolib is used by around 450,000 health professionals and 90 million people across Europe, and research that succeeds in the lab can be deployed at that scale.

Working at Doctolib means contributing to one of Europe’s leading health-tech companies, and seeing your work improve care for patients and practitioners.

How we work

Doctolab is a research lab in its founding phase, so researchers have real influence over its direction and its priorities. We work closely with the data science and product teams, and we stay close to the data.

We expect researchers to explain why a question matters, not only why it is open. Projects are chosen on both scientific ambition and what they change for patients and practitioners. The work suits researchers who want to see their results used.

The questions we raise are open problems in machine learning: world models that predict the consequences of an action, calibration and uncertainty, causal inference from observational data, multimodal sequence modelling, orchestration between model capabilities. Results on these questions hold well beyond healthcare. We are in a strong position to work on them: we have the data to learn a world model from, a clinical use case that defines success, and the engineering path to put it in front of practitioners and patients and learn from what comes back.

Experience with healthcare or medical data is a plus but not required. Both early-career and experienced researchers are welcome.

What you’ll do

Your responsibilities include but are not limited to:

• Build a world model of patient health: how a health state evolves over time and changes in response to care, learned from observational data with the confounding accounted for
• Build evaluation methods that test calibration, robustness, interpretability, privacy, and generalization outside the training distribution
• Work with the data science and product teams to turn research results into clinical-grade features
• Publish at leading machine learning and health informatics venues
• Engage the international health and machine learning community through open collaboration: data challenges, shared benchmarks, and open-source releases
• Help define the lab’s research agenda and its working relationship with the rest of the company

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.

You’ll be a great fit if you:

• Have a PhD in machine learning, statistics, computer science, or a related field, or a Master’s degree with significant research experience
• Have depth in one or more of: representation learning and self-supervised learning; large language models and multimodal modelling; causal inference and causal discovery from observational data; temporal and dynamic modelling; calibration and uncertainty quantification; agentic systems and orchestration; evaluation and benchmarking; privacy auditing of machine learning models
• Have first-author publications at leading venues such as NeurIPS, ICML, ICLR, ACL, EMNLP, or comparable medical informatics venues
• Have driven your own research, from choosing the question to publishing the result
• Are proficient in Python and a deep learning framework such as PyTorch, and have trained models yourself
• Are comfortable working with large and imperfect real-world data
• Can explain why a research question matters, scientifically and for patients or practitioners
• Are fluent in English, the working language of the lab

It would be fantastic if you:

• Have experience with healthcare or medical data, clinical text, or electronic health records
• Have taken research models into production, or worked alongside product teams
• Have released open-source code, benchmarks, or datasets

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 (basic package) for you and your children
• 25 days of paid vacation per year, plus up to 14 days of RTT
• Free mental health and coaching services through our partner Moka.care
• Work from abroad for up to 10 days per year thanks to our flexibility days policy
• Lunch vouchers (Swile card) worth €8.50 per working day, with €4.50 covered by Doctolib
• A subsidy from the work council to refund part of the membership to a sport club or a creative class
• 50% reimbursement of your public transport subscription
• ParentCare Program: Enjoy full salary coverage (100%) during your first month of birth leave and 75% during the second, covered by Doctolib
• Enrollment in Doctolib’s long-term employee value sharing plan called DoctoGrowth
• For caregivers and workers with disabilities, a package including an adaptation of the remote policy, extra days off for medical reasons, and psychological support
• Relocation support in case of international mobility
• Access to the best AI tools for coding, development and dedicated training

Our interview process

• Recruiter Interview
• One or more Research Background Interviews
• Technical / Problem-Solving 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
• Full-time
• Paris, France
• Hybrid work setup (up to 2 remote days per week)
• 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 France. Please contact hr.dataprivacy(at)doctolib.com for inquiries or to exercise your rights.