Full-Time

Senior Staff Machine Learning Engineer

Multiple Teams

Doctolib

Doctolib

1,001-5,000 employees

Online appointment booking and teleconsultation platform

No salary listed

Paris, France

Hybrid

Three days on-site per week in Paris.

Category
AI & Machine Learning (2)
,
Required Skills
Python
Pytorch
RAG
AWS
Observability
Reinforcement Learning
Google Cloud Platform
Requirements
  • You have 10+ years in machine learning/artificial intelligence with 3+ years at Staff+ or Principal level leading complex, multi-team technical initiatives
  • You have a PhD in Computer Science, Artificial Intelligence, Statistics, or related field (or equivalent research experience)
  • You have deep expertise in at least two of: clinical natural language processing, large language model fine-tuning and evaluation, automatic speech recognition, Retrieval-Augmented Generation systems, or reinforcement learning
  • You are expert in Python, PyTorch or Transformers for training, vLLM or similar for inference with a track record deploying machine learning systems in production (AWS or Google Cloud Platform)
  • You have exceptional communication skills and are able to align diverse stakeholders and explain complex technical decisions
Responsibilities
  • Own the long-term technical roadmap for clinical machine learning systems, from model architecture selection to production deployment patterns
  • Drive strategic build versus buy decisions, balancing custom development with foundation model application programming interfaces
  • Define standards for safe rollout in healthcare contexts: shadow testing, staged deployment, and human-in-the-loop workflows
  • Lead design and implementation of large language model 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
  • Mentor staff or senior machine learning 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 medical, legal, and compliance teams to meet European Union regulatory expectations (e.g., General Data Protection Regulation, Medical Device Regulation, upcoming European Union Artificial Intelligence Act) and market standards.
Desired Qualifications
  • Publications in top-tier machine learning or artificial intelligence conferences (Neural Information Processing Systems, International Conference on Learning Representations, Association for Computational Linguistics) or medical informatics venues
  • Experience with European Union healthcare regulations (General Data Protection Regulation, Medical Device Regulation, artificial intelligence act)
  • Prior work with clinical data or healthcare applications

Doctolib runs a digital healthcare platform that connects patients with healthcare professionals, mainly in France, Germany, and Italy. It provides online appointment booking, teleconsultation, and practice-management tools through subscription-based software for medical practices, hospitals, and individual clinicians. The platform helps patients find and book care quickly while giving providers a centralized system to manage schedules, patient communications, and administrative tasks. Unlike many options that focus on one feature, Doctolib combines patient access with practice management in a single solution, serving multiple types of healthcare clients across several European countries. The company’s goal is to make healthcare more efficient and easier to access by streamlining operations for providers and reducing barriers to care for patients, using a scalable subscription model to grow across markets.

Company Size

1,001-5,000

Company Stage

Debt Financing

Total Funding

$810.9M

Headquarters

Levallois-Perret, France

Founded

2013

Simplify Jobs

Simplify's Take

What believers are saying

  • Doctolib invests £100m in UK expansion, acquiring Medicus and hiring 150 staff.
  • Doctolib launches Care Forward with AP-HP, Roche on April 17, 2026, accelerating healthtech adoption.
  • Doctolib partners Adyen on November 27 for embedded payments in France, Italy, expanding Europe.

What critics are saying

  • French Authority fines Doctolib €4.66 million on November 6, 2025, for exclusivity clauses.
  • Doctolib's 2018 MonDocteur acquisition triggers predatory merger sanctions, blocking future deals.
  • Doctolib appeals fine, but EU scrutiny forces contract changes by September 2026, losing providers.

What makes Doctolib unique

  • Doctolib serves 400,000 providers and 80 million patients across France, Germany, Italy.
  • Doctolib integrates AI telephony from Aaron.ai acquisition, cutting 45 hours monthly calls.
  • Doctolib bundles appointment booking with teleconsultation, locking in healthcare workflows.

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Benefits

Hybrid Work Options

Phone/Internet Stipend

Wellness Program

Professional Development Budget

Flexible Work Hours

Health Insurance

Paid Vacation

Paid Sick Leave

Paid Holidays

Parental Leave

Mental Health Support

Meal Benefits

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

0%

2 year growth

0%
Station F
Apr 17th, 2026
Care Forward: Doctolib, @Hôtel-Dieu (AP-HP), and Roche join forces at STATION F.

Care Forward: Doctolib, @Hôtel-Dieu (AP-HP), and Roche join forces at STATION F. Three major health players launched "Care Forward" at STATION F to help Europe's next-gen health startups move faster and scale from concept to real clinical adoption. Published on Apr 17, 2026 We're excited to announce the launch of a new program in the health space, led by Doctolib, @Hôtel-Dieu (AP-HP), and Roche. The goal is simple: bring health innovations closer to where they matter most: patients and care teams. Based at STATION F, the "Care Forward" program is open to European startups with the potential to deliver clear, measurable impact on the healthcare system. The focus is straightforward but demanding: solutions that work in practice. Whether building in digital health, AI, connected devices, or care services, selected startups will be supported to test, validate, and deploy their solutions in real clinical environments. From diagnosis and treatment to follow-up and system efficiency, all parts of the care pathway are in scope, as long as the impact is concrete. Direct access to technology, clinicians, and patients. What sets this program apart is not just mentorship or office space, it's proximity. Selected startups will receive tailored, hands-on support from three key players in European healthcare: * Doctolib will bring its deep expertise in product integration, AI in healthcare, and practitioner workflows, helping startups build solutions that can scale across Europe and truly fit into daily medical practice. * @Hôtel-Dieu (AP-HP) will open the doors of Europe's largest university hospital system. Startups will gain access to innovation platforms and clinical environments, and leverage the expertise of professionals across the 38 hospitals of AP-HP, to ground their solutions in real needs. * Roche will support founders in navigating regulatory pathways, demonstrating health economic value, and connecting with a global network of scientific and medical experts. Beyond this, participants will meet specialized investors, engage with industry stakeholders, and gain access to key events across Europe's health ecosystem. Bridging innovation and adoption. As Doctolib's Managing Director France, Jean-Urbain Hubau, puts it: "Our healthtech ecosystem is full of talent, but the real challenge remains scaling and adoption by healthcare professionals." For @Hôtel-Dieu (AP-HP), the initiative also reflects a broader ambition: bringing innovation closer to care delivery. As Nicolas Castoldi, Deputy Director to the CEO of AP-HP and Executive Director of the @Hôtel-Dieu initiative, notes, it builds on the transformation of the Hôtel-Dieu hospital into a major innovation hub; one rooted in both history and forward-looking healthcare. And for Roche, the logic is ecosystem-driven. As President Jean-François Brochard emphasizes, shaping the future of health requires coordinated partnerships where startups and established players work side by side to improve care pathways and system efficiency. Selected startups will join the program following the application phase, which runs until May 15th, and will be announced shortly afterwards at a dedicated event at STATION F. Applications are open here. Media & press relations Looking for press resources? Download our press kit and get in touch with our media team.

Sidas World
Mar 17th, 2026
Podiatech and Doctolib: an obvious partnership.

Podiatech and Doctolib: an obvious partnership. To best support podiatry practices, Podiatech and Doctolib have joined forces to create a useful offering tailored to the needs of healthcare professionals. The goal is clear: to enable practitioners to grow their practice while improving their work-life balance. Through its online consultation management service, the platform makes it easier to connect with patients and helps reduce missed appointments. Many tasks are simplified, and the administrative workload is reduced. Doctolib X Podiatech by the numbers: * 8,000 podiatrists supported * 60% of appointments booked directly online * An average of 20 new patients per month * 500,000 appointments booked each month with podiatrists This partnership marks an important milestone for Podiatech, demonstrating its role as a key player in the day-to-day life of practices across France. Sidas Academy Events Tuesday 17 March 2026 Sidas Athletes Friday 13 March 2026

Argos CI
Oct 28th, 2025
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PYMNTS
Nov 27th, 2024
Adyen And Doctolib Partner On Embedded Financial Products In Healthcare

Adyen and Doctolib have teamed up to offer embedded financial products to medical professionals in Europe. With this partnership, Doctolib’s digital healthcare services will expand to include Adyen’s online payment solutions and broader financial services, the companies said in a Wednesday (Nov. 27) press release. The collaboration was recently launched in France and Italy, and Doctolib plans to expand it to Germany and other European countries, according to the release

PYMNTS
Nov 27th, 2024
Adyen and Doctolib Partner on Embedded Financial Products in Healthcare

The collaboration was recently launched in France and Italy, and Doctolib plans to expand it to Germany and other European countries, according to the release.