Senior Machine Learning Engineer - Orchestration - Applied AI & LLMs (x/f/m)

<h2 class="pb-2 pt-4 heading-xl text-foreground">Set a new pulse for healthcare!</h2> <div class="whitespace-pre-wrap break-words font-normal first:pt-0 last:pb-0 py-1 @md:pt-2 @md:pb-[10px] @md:leading-relaxed text-base leading-relaxed text-foreground">We are looking for a <strong class="font-semibold text-foreground">Senior Machine Learning Engineer</strong> to join the <strong class="font-semibold text-foreground">Orchestration</strong> team in <strong class="font-semibold text-foreground">AI Health Assistant</strong>.</div> <div class="whitespace-pre-wrap break-words font-normal first:pt-0 last:pb-0 py-1 @md:pt-2 @md:pb-[10px] @md:leading-relaxed text-base leading-relaxed text-foreground">Your mission will be to ensure our AI Health Companion behaves safely, reliably, and helpfully — for millions of patients and practitioners. You will work in a cross-functional team building robust evaluation pipelines for agentic AI systems, contributing directly to improving the quality and safety of AI-powered healthcare.</div> <div class="whitespace-pre-wrap break-words font-normal first:pt-0 last:pb-0 py-1 @md:pt-2 @md:pb-[10px] @md:leading-relaxed text-base leading-relaxed text-foreground">Working in the tech team at Doctolib means building innovative products and features to improve the daily lives of care teams and patients.</div> <h2 class="pb-2 pt-4 heading-xl text-foreground">What you'll do</h2> <div class="whitespace-pre-wrap break-words font-normal first:pt-0 last:pb-0 py-1 @md:pt-2 @md:pb-[10px] @md:leading-relaxed text-base leading-relaxed text-foreground">Your responsibilities include but are not limited to:</div> <ul class="list-disc pb-2 pl-6 flex flex-col gap-1 text-foreground text-base leading-relaxed"> <li class="break-words text-foreground text-base leading-relaxed">Define and own the evaluation strategy for our AI agentic system — metrics, protocols, datasets, and tooling</li> <li class="break-words text-foreground text-base leading-relaxed">Implement and maintain automated evaluation pipelines to monitor model quality, safety, and alignment across iterations</li> <li class="break-words text-foreground text-base leading-relaxed">Run systematic experiments to assess reasoning, factuality, robustness, and user experience</li> <li class="break-words text-foreground text-base leading-relaxed">Collaborate closely with model developers and research scientists to provide insights and drive iterative improvement</li> <li class="break-words text-foreground text-base leading-relaxed">Contribute to research and internal knowledge sharing on LLM evaluation methodologies and best practices</li> </ul> <h2 class="pb-2 pt-4 heading-xl text-foreground">Life at Doctolib Tech</h2> <ul class="list-disc pb-2 pl-6 flex flex-col gap-1 text-foreground text-base leading-relaxed"> <li class="break-words text-foreground text-base leading-relaxed">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.</li> <li class="break-words text-foreground text-base leading-relaxed">Our stack is composed of Rails, TypeScript, Java, Python, Kotlin, Swift, and React Native.</li> <li class="break-words text-foreground text-base leading-relaxed">We leverage AI ethically across our products to empower patients and health professionals. Discover our AI vision&nbsp;<a class="break-all font-semibold transition-all duration-200 ease-in-out hover:underline text-highlight hover:text-highlight-400 active:text-highlight-dark" href="https://careers.doctolib.com/ai-careers/" target="_blank">here</a>.</li> </ul> <div class="whitespace-pre-wrap break-words font-normal first:pt-0 last:pb-0 py-1 @md:pt-2 @md:pb-[10px] @md:leading-relaxed text-base leading-relaxed text-foreground"><em>Want to learn more about our tech culture and environment? Visit the <a class="break-all font-semibold transition-all duration-200 ease-in-out hover:underline text-highlight hover:text-highlight-400 active:text-highlight-dark" href="https://careers.doctolib.com/tech-doctolib/" target="_blank">Doctolib Tech site</a>.</em></div> <h2 class="pb-2 pt-4 heading-xl text-foreground">Who you are</h2> <div class="whitespace-pre-wrap break-words font-normal first:pt-0 last:pb-0 py-1 @md:pt-2 @md:pb-[10px] @md:leading-relaxed text-base leading-relaxed text-foreground">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.</div> <div class="whitespace-pre-wrap break-words font-normal first:pt-0 last:pb-0 py-1 @md:pt-2 @md:pb-[10px] @md:leading-relaxed text-base leading-relaxed text-foreground"><strong class="font-semibold text-foreground">You'll be a great fit if you:</strong></div> <ul class="list-disc pb-2 pl-6 flex flex-col gap-1 text-foreground text-base leading-relaxed"> <li class="break-words text-foreground text-base leading-relaxed">Hold an MSc or PhD in Computer Science, Machine Learning, Data Science, or a related field</li> <li class="break-words text-foreground text-base leading-relaxed">Have 7+ years of hands-on experience working with large language models (e.g., GPT, Claude, Llama, or BERT-like architectures)</li> <li class="break-words text-foreground text-base leading-relaxed">Have proven experience evaluating agentic or reasoning systems (e.g., autonomous agents, tool-using LLMs, dialogue systems, or task-oriented assistants)</li> <li class="break-words text-foreground text-base leading-relaxed">Have a strong track record in experiment design, metric definition, and evaluation automation</li> <li class="break-words text-foreground text-base leading-relaxed">Are able to bridge research and production, influencing both modeling and product decisions</li> <li class="break-words text-foreground text-base leading-relaxed">Have excellent communication skills, a collaborative mindset, and are fluent in English</li> </ul> <div class="whitespace-pre-wrap break-words font-normal first:pt-0 last:pb-0 py-1 @md:pt-2 @md:pb-[10px] @md:leading-relaxed text-base leading-relaxed text-foreground"><strong class="font-semibold text-foreground">It would be fantastic if you:</strong></div> <ul class="list-disc pb-2 pl-6 flex flex-col gap-1 text-foreground text-base leading-relaxed"> <li class="break-words text-foreground text-base leading-relaxed">Have experience in the clinical or medical domain and sensitivity to ethical or regulatory challenges in healthcare AI</li> </ul> <h2 class="pb-2 pt-4 heading-xl text-foreground">What we offer</h2> <ul class="list-disc pb-2 pl-6 flex flex-col gap-1 text-foreground text-base leading-relaxed"> <li class="break-words text-foreground text-base leading-relaxed">Free comprehensive health insurance (basic package) for you and your children</li> <li class="break-words text-foreground text-base leading-relaxed">25 days of paid vacation per year, plus up to 14 days of RTT</li> <li class="break-words text-foreground text-base leading-relaxed">Free mental health and coaching services through our partner Moka.care</li> <li class="break-words text-foreground text-base leading-relaxed">Work from abroad for up to 10 days per year thanks to our flexibility days policy</li> <li class="break-words text-foreground text-base leading-relaxed">Lunch vouchers (Swile card) worth €8.50 per working day, with €4.50 covered by Doctolib</li> <li class="break-words text-foreground text-base leading-relaxed">A subsidy from the work council to refund part of the membership to a sport club or a creative class</li> <li class="break-words text-foreground text-base leading-relaxed">50% reimbursement of your public transport subscription</li> <li class="break-words text-foreground text-base leading-relaxed">ParentCare Program: Enjoy full salary coverage (100%) during your first month of birth leave, and 75% during the second, covered by Doctolib</li> <li class="break-words text-foreground text-base leading-relaxed">Enrollment in Doctolib's long-term employee value sharing plan called DoctoGrowth</li> <li class="break-words text-foreground text-base leading-relaxed">For caregivers and workers with disabilities, a package including an adaptation of the remote policy, extra days off for medical reasons, and psychological support</li> <li class="break-words text-foreground text-base leading-relaxed">Relocation support in case of international mobility</li> <li class="break-words text-foreground text-base leading-relaxed">Access to the best AI tools for coding, development and dedicated training</li> </ul> <h2 class="pb-2 pt-4 heading-xl text-foreground">Our interview process</h2> <ul class="list-disc pb-2 pl-6 flex flex-col gap-1 text-foreground text-base leading-relaxed"> <li class="break-words text-foreground text-base leading-relaxed">Recruiter Interview</li> <li class="break-words text-foreground text-base leading-relaxed">Technical Deep Dive</li> <li class="break-words text-foreground text-base leading-relaxed">Data System Design</li> <li class="break-words text-foreground text-base leading-relaxed">Behavioral Interview</li> <li class="break-words text-foreground text-base leading-relaxed">At least one reference check</li> </ul> <div class="whitespace-pre-wrap break-words font-normal first:pt-0 last:pb-0 py-1 @md:pt-2 @md:pb-[10px] @md:leading-relaxed text-base leading-relaxed text-foreground">We want your experience to be clear, respectful, and transparent. Learn more about our hiring process on our <a class="break-all font-semibold transition-all duration-200 ease-in-out hover:underline text-highlight hover:text-highlight-400 active:text-highlight-dark" href="https://careers.doctolib.com/tech-doctolib/getting-hired/" target="_blank">candidate experience page</a>.</div> <h2 class="pb-2 pt-4 heading-xl text-foreground">Job details</h2> <ul class="list-disc pb-2 pl-6 flex flex-col gap-1 text-foreground text-base leading-relaxed"> <li class="break-words text-foreground text-base leading-relaxed">Permanent position</li> <li class="break-words text-foreground text-base leading-relaxed">Full-time</li> <li class="break-words text-foreground text-base leading-relaxed">Hybrid in our Levallois-Perret office (up to 2 remote days per week)</li> <li class="break-words text-foreground text-base leading-relaxed">Start date: as soon as possible</li> </ul> <h2 class="pb-2 pt-4 heading-xl text-foreground">We welcome everyone</h2> <div class="whitespace-pre-wrap break-words font-normal first:pt-0 last:pb-0 py-1 @md:pt-2 @md:pb-[10px] @md:leading-relaxed text-base leading-relaxed text-foreground">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.</div> <div class="whitespace-pre-wrap break-words font-normal first:pt-0 last:pb-0 py-1 @md:pt-2 @md:pb-[10px] @md:leading-relaxed text-base leading-relaxed text-foreground">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.</div> <div class="whitespace-pre-wrap break-words font-normal first:pt-0 last:pb-0 py-1 @md:pt-2 @md:pb-[10px] @md:leading-relaxed text-base leading-relaxed text-foreground">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.</div> <div class="whitespace-pre-wrap break-words font-normal first:pt-0 last:pb-0 py-1 @md:pt-2 @md:pb-[10px] @md:leading-relaxed text-base leading-relaxed text-foreground">Join us in building the healthcare we all dream of!</div> <h2 class="pb-2 pt-4 heading-xl text-foreground">Your data privacy</h2> <div class="whitespace-pre-wrap break-words font-normal first:pt-0 last:pb-0 py-1 @md:pt-2 @md:pb-[10px] @md:leading-relaxed text-base leading-relaxed text-foreground"><em>All information provided is processed by Doctolib for application management. For data processing details, click here: <a class="break-all font-semibold transition-all duration-200 ease-in-out hover:underline text-highlight hover:text-highlight-400 active:text-highlight-dark" href="https://doctolib.legal/B2C-Privacy-Policy-Career-FR" target="_blank">France</a>. Please contact hr.dataprivacy(at)doctolib.com for inquiries or to exercise your rights.</em></div>