Senior Staff Machine Learning Engineer – Clinical – AI Teams (x/f/m)

Doctolib; France; Hybrid; EUR 120,000 - 210,000; Full time

Benefits offered by this job

Health insurance

Vacation days and RTT

Mental health and coaching support

Relocation support for international?

Job summary

Doctolib is seeking a Senior Staff Machine Learning Engineer to lead technical direction in the Clinical team within the AI and Machine Learning Department in Paris. You will drive end-to-end ML systems for clinical decision support, from architecture to production deployment, focusing on safety and efficacy in regulated healthcare environments.

With 10+ years in ML/AI and a PhD, you will mentor engineers, collaborate across Product, Medical Affairs, Legal, and Compliance, and shape Doctolib's

Qualifications

• 10+ years in ML/AI
• 3+ years at Staff+ or Principal level leading multi-team initiatives
• PhD in CS/AI/Statistics or equivalent research experience
• Deep expertise in at least two of: clinical NLP, LLM fine-tuning & evaluation, ASR, RAG, RL
• Expert in Python, PyTorch/Transformers for training; vLLM for inference; production deployments (AWS/GCP)
• Excellent communication and stakeholder alignment

Responsibilities

• Define long-term technical roadmap for clinical ML systems and production patterns
• Drive build vs buy decisions balancing custom development with APIs
• Establish safe rollout standards in healthcare: shadow testing, staged deployment, human-in-the-loop
• Lead design of LLM-powered clinical agents (summarization, coding, recommendations)
• Create rigorous evaluation using real-world clinical data for accuracy and safety
• Build production infra: versioning, guardrails, uncertainty quantification, cost optimization
• Set online/offline performance objectives to improve clinician satisfaction
• Mentor Staff/Senior ML Engineers; lead cross-functional initiatives
• Translate clinical needs into research questions and production systems
• Collaborate with medical/legal/compliance to meet EU regulations

Skills

Leadership in ML/AI

Python programming

PyTorch/Transformers

Cloud platforms (AWS/GCP)

Strong communication

Education

PhD in Computer Science / AI / Statistics

Tools

vLLM

Transformers tooling

Job description

What you’ll do

We are looking for a Senior Staff Machine Learning Engineer to join the Clinical team in the AI and Machine Learning Department. You'll lead the technical direction of AI systems that enhance clinical decision-making and patient care. You'll tackle the hardest problems in healthcare AI, from building voice-powered consultation assistants to establishing LLM evaluation frameworks that ensure clinical safety and efficacy. This role combines deep R&D with strategic technical leadership, shaping how Doctolib deploys AI in regulated healthcare environments.

Your responsibilities include but are not limited to

• Technical Strategy & Architecture
  • Own the long-term technical roadmap for clinical ML systems, from model architecture selection to production deployment patterns
  • Drive strategic build vs. buy decisions, balancing custom development with foundation model APIs
  • Define standards for safe rollout in healthcare contexts: shadow testing, staged deployment, and human-in-the-loop workflows
• End-to-End ML Delivery
  • Lead design and implementation of LLM-powered clinical agents (consultation summarization, clinical coding, evidence-grounded recommendations)
  • Establish rigorous evaluation frameworks using real-world clinical datasets, ensuring outputs meet clinical accuracy and safety standards
  • Build production infrastructure: model and prompt versioning, guardrails, uncertainty quantification, cost optimization, and observability
  • Define a bold strategy for online and offline performance objectives to reach new levels of healthcare professionals satisfaction
• Leadership & Impact
  • Mentor Staff or Senior ML Engineers and Applied Scientists, elevating technical standards across the organization
  • Lead cross-functional initiatives spanning Product, Medical Affairs, Legal, and Compliance teams
  • Translate clinical needs into research questions and production systems that measurably improve patient outcomes
  • Partner with our medical, legal, and compliance teams to meet EU regulatory expectations (e.g., GDPR, MDR, upcoming EU AI Act) and market standards.

Who you are

• You have 10+ years in ML/AI with 3+ years at Staff+ or Principal level leading complex, multi-team technical initiatives
• You have a PhD in Computer Science, AI, Statistics, or related field (or equivalent research experience)
• You have deep expertise in at least two of: clinical NLP, LLM fine-tuning and evaluation, automatic speech recognition, RAG systems, or reinforcement learning
• You are expert in Python, PyTorch/Transformers for training, vLLM/similar for inference with a track record deploying ML systems in production (AWS/GCP)
• You have exceptional communication skills and are able to align diverse stakeholders and explain complex technical decisions

Now it would be fantastic if you have:

• Publications in top-tier ML/AI conferences (NeurIPS, ICLR, ACL) or medical informatics venues
• Experience with EU healthcare regulations (GDPR, MDR, AI Act)
• Prior work with clinical data or healthcare applications

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

Job details

Permanent positionFull-timeHybrid work mode (3 days/week in the office)Paris, FranceStart 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.

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