Client is looking for a Lead Mobile Engineer to drive the user-facing side of their platform. This role is all about mobile : you'll design and build iOS and Android apps, refine cross-platform frameworks, and craft interfaces that feel fast, intuitive, and trustworthy. Candidate must have deep mobile expertise (React Native), native iOS / Android knowledge, and strong UX instincts.
Responsibilities
- Lead the design and development of our iOS / Android apps.
- Own features from idea to launch to iteration.
- Refine SDKs and cross-platform frameworks for smooth integrations.
- Bring fintech-grade UX and bank-grade security to mobile wallets.
- Set high standards for performance, security, and architecture.
- Partner with product and design to ship features fast.
- Write clear docs, review code, and mentor teammates.
Requirements
8+ years in mobile engineering, with experience leading projects.Expert in React Native or native mobile (Swift, Kotlin, etc.).Skilled in cross-platform development and SDKs.Hands-on with WebAuthn, passkeys, and secure authentication.Proven record of shipping mobile apps in fintech or on-chain.Strong sense of UX, detail-oriented, and reliable.Clear communicator who thrives in fast-moving teams.Remote - US or EU (remote-first, office optional).Based in EST timezone, preferably close to France, Paris is always the major.