Senior Full Stack Engineer (BE Focused)

👥 ABOUT THE ENGINEERING TEAM

At ZOE, we use advanced science and technology to transform health—and our Engineering team sits at the heart of that mission. We are a distributed team of around 40 engineers across the UK and EU who thrive on solving complex challenges together.

We are a highly cross-functional group, bringing together front-end, back-end, mobile, machine learning, and data expertise. We partner closely with Product, Design, and Science to build truly impactful member experiences.

We value curiosity, openness, and empowerment. We encourage continuous learning, sharing ideas, and shaping how we work—whether through experimenting with new technology or improving team efficiency.

We're proud of our team's diversity (40% female, 60% male) and believe that varied backgrounds, cultures, and lived experiences make us stronger, more creative, and better equipped to serve our global community.





🚀 ABOUT THE ROLE & IMPACT

We’re looking for a Product-First Engineer who has mastered the backend but is hungry to own the entire user journey:

- Full-Stack Agency: While your core strength might be in Kotlin or Python, you’re a "problem solver first." You’ll move across the stack into our React Native codebase whenever it’s the shortest path to delivering user value.

- Ship Fast, Learn Faster: You’ll join a team that prizes high technical velocity. We ship small changes often (several times a day) and use short feedback loops to keep us on track.

- Scale with Purpose: From architecting robust microservices on GCP to leveraging AI-augmented tools, your work directly impacts the health of millions. Whether you’re a seasoned pro or a rising senior, you’ll find an environment that rewards initiative and prioritises the perfect user experience over perfect code.


💻 OUR CUTTING-EDGE STACK - A TASTE OF WHAT YOU'LL USE!

- Backend: Kotlin / Spring Boot, Python / FastAPI & Django

- Frontend: React Native

- Data & Infrastructure: GCP, Kubernetes, Terraform, dbt, BigQuery, Airflow

- Tools: Google Pub/Sub, Grafana, Firebase Auth

- CI/CD: ArgoCD, GitHub Actions


🎯 WHAT YOU WILL DO

- Own the Outcome: Take initiative to lead features end-to-end and improve the user experience by transcending code boundaries. You move with purpose across the stack to ensure the right problem is solved, regardless of who "owns" the repository.

- Put the User Experience First: Relentlessly optimise for user experience to reduce their friction, focusing on the bottlenecks they actually feel over perfect code and championing the non-functional requirements. Attention to detail in perceived performance, protecting user privacy, and reliable data accuracy compound into an exceptional user experience.

- Champion KISS: Fight complexity by favouring concrete, simple implementations today (YAGNI). Aggressively delete deprecated code and resist bespoke builds when off-the-shelf solutions suffice.

- Ship Small & Often: Maintain momentum by releasing several tim