Staff Mobile Engineer, Finary

• 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
• Based in Europe, within 2 hours of Paris time zone (CET/CEST), and able to attend onsite weeks in Paris every 6 weeks (travel and accommodation covered). We are not set up to hire outside this range
• Fluent in English: written and spoken. Our engineering team works in English
• Even if you don't check every box, we encourage you to apply. We value diverse perspectives and are more interested in your potential than a perfect match to our checklist

Desirable

• You'll build and ship features used by 850,000+ users on Finary's mobile apps (iOS & Android), working with React Native and Expo in a modern, AI-native engineering environment
• This is a high-autonomy role where you'll shape mobile architecture and ship at high velocity alongside a small, senior team
• You'll build and ship features used by 850,000+ users on Finary's mobile apps (iOS & Android), working with React Native and Expo in a modern, AI-native engineering environment. This is a high-autonomy role where you'll shape mobile architecture and ship at high velocity alongside a small, senior team
• 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
• You'll join an engineering team of ~30, organized in four full-stack squads (Track, Investment, Crypto, Finary One) plus a platform team (SRE, security, data). Your manager will be an Engineering Manager. You'll work daily with backend engineers, web engineers, product managers, and designers
• Squads are fluid: they exist to solve specific problems and evolve as priorities shift. You'll have stability within a squad but move across them as needed. At our current size (3 mobile engineers), there's high flexibility without over-specialization