
Bioptimus builds AI foundation models that convert multiscale biological data into actionable representations for scientific discovery. The company trains multimodal machine learning models on…

Bioptimus builds AI foundation models that convert multiscale biological data into actionable representations for scientific discovery. The company trains multimodal machine learning models on…
What they do: Train multimodal, multiscale AI foundation models to convert biological data into actionable representations for research
Headquarters: Paris, Île-de-France, France
Founded: 2024
Notable models: H-optimus-1, H-optimus-0 (open-source), M-Optimus
Funding: Raised roughly $76M over Seed and Series A (latest: Jan 14, 2025)
Biomedical and environmental research — integrating heterogeneous biological data (pathology, spatial transcriptomics, molecular data) to support research and drug development.
2024
Biotechnology Research
35000000
Seed round reported at $35M
41000000
Series A contribution reported as $41M toward a $76M total funding milestone
“Cathay Innovation led the latest round with participation from Sofinnova Partners, Bpifrance (Large Venture), Andera Partners, Hitachi Ventures and others”
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Bioptimus is building the first universal AI foundation model for biology to fuel breakthrough discoveries and accelerate innovation in biomedicine. With more than $75M in funding, Bioptimus is a fast-growing start-up headquartered in Paris, incorporated in October 2023. Backed by leading international venture capitalists, our world-class team of scientists and engineers is redefining the frontiers of AI and life sciences.
About the role We are looking for a meticulous and detail-oriented Biology Data Quality Engineer to ensure the integrity and usability of the various and complex datasets that are central to our mission. In this critical role, you'll leverage your expertise in biology, data science, and machine learning to ensure the quality and consistency of biological data used to train and evaluate our foundation models. You'll work in collaboration with the R&D team and our engineers, using your skills to ensure our data meets the highest standards.
What you'll be doing As a Biology Data Quality Engineer, you will own the following tasks:
What you'll bring The successful candidate will have a ‘team-first’ kind of attitude; be independent, curious, and detail-oriented; thrive in a dynamic, fast-paced environment; and be fun to work with. We value individuals who bring strong domain expertise in biology alongside strong computational, hands-on skills.
How to stand out:
The candidate journey
To be considered, please submit your CV in English . We believe in a transparent and collaborative interview process. Here is what you can expect after submitting your application:
Why This is a Unique Opportunity You will:
And benefit from:
We believe that the unique contributions of all Bioptimists create our success. To ensure that our culture continues to incorporate everyone’s perspectives and experience, we never discriminate based on race, religion, national origin, gender identity or expression, sexual orientation, age, or marital, or disability status. Decisions related to hiring are made fairly, and we provide equal employment opportunities to all qualified candidates. We take responsibility for always striving to create an inclusive environment that makes every employee and candidate feel welcome.
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Screening : Once you have applied, the hiring team will review your application to determine if your work experience and skills align with the necessary proficiencies of this position.
Technical Assessment: Given the technical nature of the role, you will be invited to complete a timed (1.5 hours) technical assessment on a dedicated platform. This stage consists of a short set of Python exercises designed to assess your coding proficiency.
Interviews:
Hiring Manager (30 min) : A call with the Hiring Manager to discuss your background, motivation, and expertise. This will include a deep dive into your technical skills, including your experience with coding and cloud environments.
Data Curation Project (Take-home): The hiring team will have an introductory call with you to share expectations for the role and to provide you with a Data Curation assignment. This assignment covers one or more key data modalities and consists of the submission of Python code and a detailed report about your work. You will get to present your work to the team, and have an interview to explore your knowledge on data modalities and relevant technical artefacts.
Team Fit (Series of 30-min chats): You will meet with cross-functional members of our team. This is a chance for us to assess your "community builder" mindset and for you to gauge the culture you will be supporting.
Offer: Following the completion of the interviews, our hiring team will make a final decision and will be in touch to share the outcome of your interviews. If the team would like to move forward, the recruiter will discuss the details of our proposed offer with you.
Onboarding: We are happy to have you joining the team. Once you have accepted and signed your offer, we will be in touch to begin the process of onboarding you to Bioptimus.