Senior Product Engineer
Paris
Research & Development – Engineering /
Full-Time /
Hybrid
Help Shape the Future of Preventive Medicine Through Deep Tech
At Zoī, we’re building ambitious AI-driven products that will transform preventive healthcare and we need true builders to drive this journey.We’re looking for Senior Product Engineers who think and act like product co-creators, people who understand not just how to code, but why, what, and for whom they are building. The ideal profile is someone who has been a first or early engineer in a product team and who has helped design, build, and scale meaningful software from scratch.
Key Reponsabilities
- Shape and build products end-to-end from ideas and architecture to production and scaling
- Bring a product mindset: deeply understand user needs, market context, and how tech choices shape product outcomes
- Own technical depth: design reliable, scalable systems even if it requires learning new languages, tools, or frameworks
- Collaborate across disciplines: product managers, doctors, researchers. Your ideas matter as much as theirs
- Innovate & research when needed: AI, LLMs, deeptech. We value curiosity and the willingness to explore new technological possibilities
- Improve the system continuously: Refactor, simplify, modernize you care about long-term tech health as much as shipping features fast
What We’re Looking For
- 3+ years of software engineering experience, with at least one strong "builder" experience such as being the first or an early engineer on a product team.
- Proven ability to build and scale systems (backend, fullstack, data your exact path can vary)
- Strong in system design, architecture, and scalability challenges
- A real product sense you want to know the "why" before the "how"
- Comfortable with technical discovery, research, prototyping especially around new fields like AI, LLMs, or deeptech (a plus, but not required)
- Curious, independent, proactive not waiting for a ticket or spec to start contributing
- Tech stack agnostic you care about principles, not tools (Our stack: TS, Python, ASW, PosgresQL)
Benefits & Perks
- Compensation: Base salary to be determined according to profile.
- Equity: BSPCE (stock options) included to share in Zoī’s growth.
- Health & Wellness: Zoī Life check-up/year and membership included.
- Benefits Package: Health insurance, meal vouchers & more.
- Wellness Tools: Xellness Box including wellness devices of your choice.
- Culture: Work in a flexible, entrepreneurial environment with autonomy to make an impact.
- Work Mode: Hybrid-friendly setup, balancing remote and office presence.
Why Zoī
- Build something meaningful: Help create life-changing AI health products with global impact
- Real ownership: Your technical and product decisions will shape what millions will use tomorrow
- Cross-disciplinary collaboration: Work with brilliant minds from engineering, medicine, and research
- Stay at the frontier: Preventive healthcare, AI, deeptech a field where your curiosity pays off
