What we're looking forWe're looking for a mobile engineer to build our first native mobile app using React Native. This is a foundational hire - you'll be responsible for helping to stand up the mobile app from scratch, making key architectural decisions, and setting the patterns that the rest of the team builds on top of.
Our ideal candidate has shipped and maintained React Native apps in production, and deeply understands the boundaries between React Native and native iOS/Android. You should be comfortable dropping into Swift or Kotlin when needed - e.g. for HealthKit integrations, push notifications, or video calling SDKs - but spend most of your time in TypeScript and React. You should also be willing to work on our Next.js web frontend; we think of mobile and web as one surface area, not two separate teams.
Beyond mobile expertise, we're looking for someone who cares deeply about technical excellence but is also comfortable moving quickly. We are constantly navigating tradeoffs between engineering velocity and quality. Our ideal candidate is hungry, high-agency, and aspires to be a generalist. Our engineers frequently write product requirements documents, write SQL to understand how features are performing, and own QA - no task is beneath us or outside of the scope of the role if it helps us to deliver a great product. We're looking for someone who can operate in an environment of significant ambiguity, and who is comfortable working closely with design, operations, and clinical stakeholders.
We don't expect you to have a healthcare background (though it's great if you do!). However, you should be excited by the prospect of digging into the messy complexities of the American healthcare system (integrating with EHRs, revenue cycle management, etc).
Qualifications- 3+ years of experience building mobile apps, with meaningful production experience in React Native
- Strong understanding of native iOS and/or Android development (Swift, Kotlin) - you don't need to be an expert in both, but you should be comfortable with either
- Experience with Expo, including build tooling, OTA updates, and native module configuration
- Proficiency with TypeScript and React
- Experience architecting shared code between mobile and web codebases (or a strong opinion on how to do it well)
- Familiarity with modern backend frameworks is a plus - we use Ruby on Rails and Postgres
Please note that this role is based in either our SF office (near Market and Spear St) or our Boston office (Central Square, Cambridge). We expect our team to work from the office a minimum of 3 days per week, and ideally 4 or 5. 
