Senior Tech Lead Mobile App Developer

• As a Senior / Tech Lead Mobile App Developer, you will take technical ownership of our mobile application and help build the next generation of DeFi trading experiences
• You’ll be a hands-on technical leader, working primarily on our React Native application while owning key architectural decisions, engineering standards, performance, reliability, and the overall technical direction of the mobile product
• You’ll work closely with Product, Design, Backend Engineering, and other engineers to turn complex trading functionality into fast, reliable, and intuitive mobile experiences
• We’re looking for an experienced mobile engineer who can operate with a high degree of autonomy, make sound technical decisions, and raise the engineering bar across the team
• You should be comfortable moving between architecture and hands-on implementation, reviewing and improving others’ work, troubleshooting complex production issues, and driving projects from technical design through release
• Most importantly, this role is for someone passionate about building exceptional mobile products and excited about the future of decentralized finance
• Take technical ownership of our React Native mobile application, driving its architecture, scalability, performance, reliability, and long-term maintainability across iOS and Android
• Lead the full engineering lifecycle of mobile features, from technical design and hands-on implementation through testing, release, monitoring, and iteration
• Build complex and high-impact functionality using React Native and TypeScript while defining and maintaining engineering standards, patterns, and best practices the codebase and team
• Make key technical and architectural decisions, balancing product requirements, development speed, scalability, and technical debt, while proactively identifying and driving improvements to the mobile architecture and development processes
• Provide technical guidance to other engineers through code reviews, design discussions, pair programming, and knowledge sharing
• Collaborate closely with Product, Design, and Backend Engineering to translate product requirements into scalable technical solutions, including API design, integrations, real-time data flows, and supporting infrastructure
• Own mobile release processes and application health, including App Store and Google Play releases, monitoring, issue triage, and investigation of complex bugs and production incidents to ensure reliable long-term fixes
• Stay up to date with modern mobile development practices and evaluate new technologies, frameworks, and tools when relevant

Benefits

• Create a new future: Create your own path while changing the world
• Token Equity Package: Be part of your company’s success
• Flexible PTO: Take time to rest, so you can come back fully recharged
• Work from anywhere: work isn’t bound to a centralized location, wneither are we
• Cool NY office: Option to work with the team in-person or pop in to see us
• Generous parental leave: Inclusive paid parental leave for all new parents- Experience with mobile CI/CD, testing, monitoring, and release processes
• Experience with Node.js
• Strong experience working with REST APIs
• Ability to provide technical direction and constructive feedback to other engineers
• 10+ years of professional software engineering experience, with significant experience building production mobile applications
• Strong understanding of mobile application architecture, design patterns, state management, performance, testing, and maintainability
• Experience owning or leading the technical development of a production mobile application
• Experience with real-time data and communication technologies such as gRPC, Server-Sent Events (SSE), or WebSockets is a strong plus
• Must be fluent in English
• Ability to communicate technical decisions clearly with both engineering and non-engineering stakeholders
• Strong professional experience with React Native, React, and TypeScript
• Strong experience integrating mobile applications with backend APIs and services
• Based in the EU or New York timezone
• Experience publishing and maintaining applications on the Apple App Store and Google Play Store
• Experience building fintech, or trading applications
• Experience with blockchain, Web3, or DeFi
• Experience debugging complex production issues and optimizing mobile application performance
• Comfortable taking ownership and operating autonomously in a fast-paced environment
• Excellent problem-solving skills and attention to detail
• Experience making architectural decisions and driving technical projects from design through production
• Understanding of iOS and Android platforms, including platform-specific behaviors, limitations, and development best practices
• Experience designing or scaling mobile applications with a significant production user base
• Experience working on products involving real-time market data, order execution, charts, or other performance-sensitive financial interfaces
• Previous experience acting as a Tech Lead or providing technical leadership within a mobile engineering team