Staff Mobile Engineer
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Job Description
Staff Mobile Engineer building features for Finary's mobile apps using React Native and Expo. Collaborating with a senior team to shape mobile architecture in a high-autonomy environment.
Responsibilities:
- Build and ship delightful features end-to-end on Finary's mobile apps
- Contribute to mobile architecture decisions: this isn't just feature work, you'll define how the mobile platform evolves
- Collaborate closely with backend engineers to define API contracts and optimize mobile-specific data flows
- Partner with product managers and designers to deliver polished, performant mobile experiences
- Leverage AI tools (Claude Code, Cursor, Codex) to multiply your output: we believe writing code manually is no longer where your value lies
- Raise the bar on mobile performance, reliability, and developer experience
Requirements:
- Strong expertise in React Native with Expo (mandatory). Native iOS/Android development experience is a strong plus.
- Solid understanding of backend systems and computer science fundamentals: you can work with backend engineers to define contracts and reason about system design
- Deep understanding of mobile-specific challenges: performance, offline handling, navigation patterns, platform differences, app store processes
- AI pioneer: you've understood that manual code-writing is mostly solved and actively use AI tools to multiply your productivity. If your current company restricts AI usage, you have personal projects that demonstrate your expertise
- Staff level preferred: you don't just ship features, you shape the mobile platform's architecture, mentor peers, and drive technical direction
- Radical ownership: you own outcomes, move fast, and don't wait for permission
- Fluent in English: written and spoken. Our engineering team works in English.
Benefits:
- Hybrid setup: teammates across France and Europe, with in-person weeks in Paris 6 times per year (travel and accommodation covered)
- High-performing environment with A-players who challenge you and help you grow
- Impact that matters: build products that help people take control of their financial future
- Modern stack and best-in-class AI tooling provided
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