Lead Mobile Engineer

Summary

Join Nansen, a blockchain analytics platform, as a Lead Mobile Engineer to spearhead the development of its mobile app using React Native. This is a greenfield opportunity to build the app from scratch, define the architecture, and shape the user experience. You will collaborate with product, design, and backend teams to deliver high-quality mobile experiences integrated with the Nansen ecosystem. The role involves technical leadership, mentoring junior engineers, and driving performance, security, and scalability. This is a remote-first, async-native position offering high-impact work and significant growth potential within a fast-growing crypto platform.

Requirements

• 5+ years of experience in software engineering
• 3+ years building high-quality mobile apps in React Native
• Strong grasp of mobile app lifecycles, performance tuning, and scalable architecture
• Experience shipping apps to the App Store and Google Play
• AI-native development mindset—you use tools like Cursor, GitHub Copilot, or similar daily to move faster
• Product-oriented thinking—you care about the why, not just the how
• Startup DNA: you move fast, take ownership, and bias toward action
• Deep understanding of iOS and Android platform differences and limitations
• Experience mentoring developers transitioning from web to mobile development

Responsibilities

• Build the first version of the Nansen mobile app using React Native
• Be the lead engineer for a team with strong React (web) engineers who are motivated to learn React Native fast
• Own the architecture, tooling, and core components for mobile
• Collaborate with design and product to create intuitive, responsive UI/UX
• Integrate with backend systems and analytics APIs
• Drive performance, security, and scalability of the mobile app
• Set a high bar for code quality, testing, and velocity
• Provide technical leadership and mentorship on mobile development best practices to our React-focused team

Preferred Qualifications

Bonus: experience with crypto, DeFi, wallets, or onchain data

Benefits

• Remote-first & async-native: Work from anywhere. No unnecessary meetings
• AI-native team: Work in a team that aims to be an AI trailblazer
• Ownership & speed: You’ll move fast, take responsibility, and ship
• High-impact work: You’ll shape the core mobile experience of a fast-growing crypto platform
• Technical leadership: Shape mobile strategy and upskill our team on mobile development
• Build critical expertise: Be our go-to mobile authority in a growing organization
• Growth potential: Lead our expansion into the mobile space as we build our first app