This is a great time to join us!

The best of AI at the service of healthcare Nabla’s phenomenal traction is the result of 3 years of diligent product development.

Led by former Meta AI Research engineers, our team has consistently anticipated how AI can revolutionize healthcare delivery. Our Machine Learning team continually leverages the latest advancements to unlock AI’s full potential in healthcare.

Yann LeCun, Meta’s Chief AI Scientist and Turing award winner, is an advisor to Nabla.

Engineering at Nabla At Nabla, product development is led jointly by Engineering and Product, and organized into cross-functional squads, each focused on a specific product area. Squads bring together product managers, designers, engineers of different profiles, and domain experts, and operate with a high level of ownership.

In this role, you’ll join Engineering and collaborate across squads, contributing ML expertise wherever it has the most impact.

Your role Now that Nabla is entering a new phase of growth and scale, we’re looking for an exceptional Staff Machine Learning Engineer to work across multiple squads, partnering with tech leads, product managers, and engineers to shape the long-term direction of our AI systems, support ML-driven features, guide technical decisions, and ensure consistency and quality across our ML stack.

What You'll Do

• Lead and contribute hands-on to complex ML initiatives, including model design, fine-tuning and evaluation, context engineering for agents, as well as production integration, monitoring, and reliability.
• As part of Nabla’s agentic platform strategy, build the ML roadmap to support progressively more configurable and autonomous workflows in the product.
• Drive ML experimentation and evaluation frameworks, and guide decisions on approach, model and tooling, based on measurable impact.
• Define and own data strategies for training and evaluation, including dataset quality, coverage, versioning, and data acquisition or annotation when needed.
• Influence ML infrastructure and hardware decisions to ensure training and inference workloads are scalable, reliable, and cost-efficient.
• Raise the ML bar across the organization through mentorship, design reviews, and survey of relevant literature and technology, and ensure ML efforts remain aligned with product and business priorities.

Your DNA

• You have deep, hands-on experience with transformer-based models and LLMs in production, and are comfortable choosing between prompt engineering, fine-tuning, retrieval-based approaches, or combinations of these, depending on the problem.
• You have 10+ years of professional experience between machine learning and software engineering, with demonstrated ownership of production systems throughout their full lifecycle.
• You combine strong machine learning expertise with solid software engineering practices, and care about building reliable, maintainable, and testable systems that operate at scale.
• You have a strong data-centric mindset and experience defining data strategies for ML training and evaluation, including quality, coverage, versioning, acquisition and annotation workflows.
• You’re comfortable making ML infrastructure decisions, and have enough familiarity with cloud-based ML systems and hardware to reason about performance, scalability, and cost.
• You are able to balance ambition with pragmatism: you enjoy exploring new ideas and techniques, but you focus on delivering measurable impact rather than chasing novelty.
• You’re comfortable influencing technical direction through collaboration and mentorship, and enjoy raising the ML bar across teams rather than working in isolation.
• You have a strong product mindset and can connect ML decisions to user and business outcomes.
• Full professional fluency in French and English (oral and written) is required; experience beyond LLMs (e.g. classical ML, optimization) is a plus.

Where you'll be based Our offices are based in Paris 3e (Arts & Métiers) .

Remote policy: 1-2 days a week (with some flexibility). Possibility of working remotely 1-2 weeks once a year.

Benefits Just like we’re dedicated to supporting doctors’ well-being, ensuring yours is a top priority. We firmly believe that by prioritizing your well-being, we support you to excel in your work.

Here Are The Benefits You Get When Joining Nabla

• Stock ownership
• 100% healthcare coverage
• Meal vouchers
• Public transportation costs covered at 50%
• Exercise class during the workday: Yoga, running, pilates, HIIT
• Unlimited budget for book purchases, so you can continue to learn about ML / Healthcare
• Culture of trust & accountability — your output matters more than your clock-in time

Life at Nabla When you become a part of our company, you join a team of excellence-driven, curious, and genuinely kind individuals. Together, we're committed to making clinicians' lives easier and improving healthcare experiences for everyone. We believe in a world where clinicians can focus on what they were trained to do - caring for their patients, and where no patient feels their visit was rushed.

We come to work excited to leverage AI to do more for clinicians. We’re obsessed with our users’ satisfaction and we actively seek out opportunities to engage one-on-one with clinicians to understand how Nabla can better help. We consistently look for ways to improve and do not shy away from doing the work to excel. Whether it’s a feature our users asked for, or a new article for our blog, we prioritize collaboration to deliver exceptional outcomes.

We love having fun as much as we love work. Our #nablabla channel is as active as our #feature-show-off channel, we exercise during the work day at least 3 times a week (yoga, running, pilates, or HIIT, your choice!), enjoy regular off-sites to gather the team, and travel to see each other in places like NY, Paris, San Francisco, and many other vibrant cities. Oh, and we’re constantly snacking on chocolate or nuts!

If this sounds like an environment you’ll thrive in, we look forward to reading your application!

Our Values at Nabla Joining Nabla means being part of a team that shares a commitment to excellence, humility, growth, and inclusion.

Every day is a new chance to excel We aim for nothing less than the best and are willing to put in the effort and dedication required to exceed standards. We learn from yesterday’s failures and do better every day.

Stay humble There’s no place for ego in our team. Our collective success is more important than individual achievements. We see humility as wisdom — keeping focus on the bigger picture.

Feedback is a gift We embrace feedback and foster a culture of trust and respect that helps everyone grow. We communicate openly about both achievements and challenges, and we actively involve each other in finding solutions.

Committed to diversity We recognize the ongoing challenge of diversity in tech. Our responsibility starts with fostering an inclusive environment where everyone feels empowered to be their authentic selves and do their best work.

Diversity & Inclusion Diversity and inclusivity are fundamental values at Nabla. We embrace individuals from various backgrounds, including race, gender, educational history, sexual orientation, and beyond.

As an equal opportunity employer, we actively seek out and welcome applicants from diverse backgrounds, believing that a wide range of perspectives enriches our team and enhances our ability to innovate and thrive.

Avoid recruitment scams: Stay safe and informed

There is an active employment scam which is now using Nabla to collect personal information or financial scams. If you’re contacted by a Nabla recruiter, please ensure whomever is contacting you truly represents Nabla and is utilizing a nabla.com email address. We will never ask for the exchange of any money or credit card details during the recruitment process. Nabla utilizes a hiring platform for all applications; please be aware of any suspicious email activity from people who could be pretending to be recruiters or senior professionals at Nabla. You can find more information following this link.

Nabla does not accept unsolicited CVs from recruiters or employment agencies in response to the Nabla Careers page or a Nabla social media post. Any unsolicited CVs, including those submitted directly to hiring managers, are deemed to be the property of Nabla.