Senior Product Engineer, Visible

• You’ve built and maintained consumer Flutter apps used by thousands of people every day. If it’s not a Flutter app but you see yourself in the rest of the bullet points, we’d still love to hear from you.
• You’re proactive and motivated to build a product you can be proud of: when you see how we could make something better, you make it happen.
• You care deeply about building reliable, beautiful and accessible products. You’re motivated to use your skills to help the more than 250,000 people using Visible to manage complex chronic illnesses.
• You're a T-shaped mobile developer who specializes in a couple of the following areas and is excited to get stuck into the rest: mobile UI (animations, charts, design systems, accessibility), Bluetooth/BLE and native integrations, mobile testing automation, and backend or web work when the product needs it.
• You’re comfortable with the pace and pragmatism of small mission-driven teams taking smart bets and learning as they go. You form views based on evidence and change them when the evidence changes, always in service of our members and our business.
• You have good judgement about when to craft the code yourself, and when to rely on an agent. You use AI to get more done in service of the mission.

Desirable

• You'll do a bit of everything, from crafting pixel-perfect pacing charts to building backend systems that handle the real complexity of a health product: personalisation and permissions, regulatory contexts, wearable integrations, and onboarding states.
• You’ll report to Dom, our founding engineer and Tech Lead, in a small, low-ego team of nine: two engineers, one QA (we're hiring a second), two designers, two data scientists, and a PM. We're ambitious about what we're building and pragmatic about how we work.
• In 2026, our product strategy is focused on making our energy pacing tools smarter and more personalised, helping members actually understand what their data is telling them, and building the kind of product reliability that earns long-term trust
• You'll also help us build the engineering foundations to support doubling our member base this year: testing infrastructure, performance, HIPAA-ready security practices, and a mature design system.
• You'll work across our stack: a mobile app built with Flutter, with an extensive native codebase (Kotlin, Java, Swift); a backend based on Cloud Functions (TypeScript) and Hasura GraphQL Engine; and most services running on GCP.
• Day to day, you'll find few rituals and a lot of flexibility. We trust engineers to manage their own time and focus.
• You'll work within HIPAA and wellness regulatory constraints, so you should be comfortable with (or curious about) building in a regulated environment.

• 1. Submit your application by Friday 10 April
• 2. A 15 to 30-minute introductory call to learn more about you and tell you more about Visible. This will either be with Harry, one of our co-founders, or Julia, our Head of Product.
• 3. A 60-minute engineering interview to walk through your past work and experience with Dom, our Tech Lead.
• 4. The final stage: a 60-minute pairing session with Dom and another member of the team, followed by a 30-minute values-based interview with Luke, our CEO.
• We're committed to running an accessible recruitment process. Let us know if there's anything we can do to support you through the process.