React Engineer (React Native, Expo) - PST to CET

📍 Location: Remote - PST to CET | 🕒 Job Type: Full-time About Jones Our vision is to build the leading community for healthier habits and better-for-you products, starting with nicotine dependency. Jones helps nicotine users take control of their health with a holistic system for nicotine management—combining FDA-approved nicotine replacement therapy mints, community, and digital behavioral support. We've already helped over 40,000 people quit or cut back, and with our recent Series A close, we’re growing fast. About the Role We’re looking for a Senior Frontend Engineer to help evolve our mobile experience. You’ll work closely with product, design, and backend to shape our React Native app using Expo, delivering fast, intuitive, and meaningful experiences to our users. We’re a small, high-impact team—so this is more than a feature factory role. You'll contribute to technical direction, process evolution, and help shape a product that's making a real difference in people's lives. What You’ll Do Build and refine features in our React Native app (currently migrating to Expo ). Own projects end-to-end—from discovery through to deployment—with autonomy and accountability. Collaborate cross-functionally with product and design on user-facing features. Work with backend engineers to integrate APIs, ensure performance, and debug issues. Bring structure to evolving processes by improving code quality, CI/CD, testing practices, and dev tools. Contribute to our engineering culture of ownership, growth, and iteration. Support initiatives around observability, debugging, and foundational tech as we scale. Who You Are Experienced: You’ve got 6+ years of frontend experience, with fluency in JavaScript , React Native , and/or Expo . Autonomous: You're comfortable owning work, making decisions, and jumping into ambiguity. You don’t need heavy mentorship to ship great work. Flexible & Scrappy: You’re energized by the pace of an early-stage team and can pivot priorities when needed. Product-Driven: You care about user needs and product impact, not just technical implementation. Growth-Minded: You’re motivated to improve not just the app, but the team’s processes and culture. Collaborative Communicator: You speak English fluently and are comfortable in an English speaking work environment and you can explain your thinking clearly to technical and non-technical teammates alike. Bonus Points: Experience with TypeScript, React Query, Maestro, React Native animations, or data/observability tooling. Why Join Us? Make an Impact: Your work will directly improve the lives of thousands (soon to be millions). Growth Opportunity: Be a key player in a rapidly growing, well-funded startup with ambitious goals. Team: Join a passionate, collaborative and mission-driven team. Competitive Compensation: Base salary - $110-150k USD (depending on experience & location), Equity package, Healthcare stipend and unlimited PTO policy