Data Engineer Lead

Nūmi is a bioproduction platform harnessing human mammary cells to produce key ingredients with proven health benefits across all stages of life. More specifically, it is the first European cultivated breast milk company aiming to produce human milk constituents to better match the ideal nutrition for babies! We are an early stage startup on the mission to revolutionize how we feed the next generation. If you want to join a fast growing, VC backed, biotech startup, Nūmi is the place for you!

Located in the centre of Paris (Hôpital Cochin, Paris 14), Nūmi is backed by top-tier international investors, scientists, and academic institutions.

• ☀️Positivity : At Nūmi, we cultivate positivity every day. Our mission drives us to communicate with passion and energy, always keeping the bigger impact in sight. We celebrate quick wins, but never lose track of our ultimate goal.

• 🤸Excellence : At Nūmi, excellence starts with dedication and a commitment to constant improvement. We embrace challenges as opportunities to learn and push ourselves to deliver high-quality results. Through effort, attention to detail, and integrity, we grow both individually and collectively as a team.

• 💙 Team-Work and Pedagogy : At Nūmi, we believe that teamwork makes us stronger. We encourage knowledge-sharing, open feedback, and mutual respect. Each Nūmiz is here to lift others up, ensuring that the collective succeeds.

• 🚀 Ambition : At Nūmi, we set ambitious goals and challenge ourselves to think big. Nūmi is driven by bold ideas and relentless determination, always aiming for the stars to create real impact.

At Nūmi, our ability to identify “golden” cell lines, batches, and conditions depends less on running more experiments and more on how well we collect, structure, and exploit our data.

Today, our experimental data spans:

• ELN entries
• Spreadsheets
• Bioreactor and equipment exports
• Analytical and QC readouts

This role is about turning that fragmented landscape into a coherent, trusted, and decision-ready data layer that powers R&D, guides scale-up choices, and ultimately underpins regulatory and industrialization efforts.

You will be a key enabler of scientific velocity at Nūmi.

• Lead the design of scalable data models and ontologies that reflect experimental workflows, metadata standards, and scientific context.
• Drive harmonization and integration of data from ELNs, spreadsheets, instruments, assays, and analytical systems into a central repository.
• Define naming conventions, unique identifiers, and metadata requirements to enable reliable cross-experiment comparison and traceability.

• Create ETL/ELT pipelines to import, clean, and validate data from lab hardware, software, and analytic sources.
• Work with IT and scientific software suppliers to operationalize robust and secure data flows across teams.
• Leverage industry best practices in data governance, FAIR principles (Findable, Accessible, Interoperable, Reusable), and scalable storage solutions.

• Build dashboards, visualizations, and automated workflows to enable scientists to analyse their data and overall trends, key signals, so that they can validate hypotheses efficiently.

• Partner closely with R&D squads (cell line, media, analytical, bioprocess teams) to understand data structure and scientific priorities.
• Act as a strategic interface between hard science and analytics, ensuring data information is well handled within the company.

You are a data engineer with a strong affinity for experimental science, who enjoys working close to the lab and building systems that scale. This is a high-autonomy, high-impact role. You will act as the internal reference for scientific data, lead projects end-to-end, make technical and architectural decisions, and ensure that leadership has clear visibility into data-driven insights and trade-offs.

• MSc or PhD in Data engineering, General Engineering or a related field.
• 3+ years of experience working with building data workflows and architectures.
• Demonstrated ability to lead projects independently and deliver end-to-end outcomes.
• Strong coding and infrastructure layout skills
• Data structuring, cleaning, and integrating from heterogeneous sources.
• Solid understanding of experimental workflows and scientific rigor.
• Comfortable operating in a fast-moving, early-stage startup environment.
• Clear written and verbal communication in English.

Nice to have

• Experience setting up data pipelines or lab data infrastructure.
• Familiarity with ELNs, LIMS, or lab-adjacent software tools.
• Experience in regulated or quality-conscious environments (ISO, HACCP, GMP-adjacent).

🚀 Unique opportunity to be one of the first employees at an early stage biotech company, shaping the future of infant nutrition

💥 Growth opportunities: you will have the opportunity to grow and develop within the company

🔬 Access to top-quality facilities, research services and infrastructure

💰 Competitive salary, part coverage of health insurance, lunch and transportation costs

⭐ Employee first mentality, we prioritize the well-being of our team members, both in terms of their mental and physical health

• We first check that your skills match the expectations
• First interview with our cofounder and CTO Eugénie
• A technical case study in English to give you a taste of what we are working on at Nūmi
• A last interview on site (when possible) to meet cofounder and CEO Eden, part of the team and visit the labs & office

Nūmi is committed to building a diverse and inclusive workplace. We welcome applications from people from all walks of life