Senior Mobile Engineer - Crypto Wallets (React Native)

Framework Ventures; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

Tether is seeking a senior mobile engineer to join a global, remotely distributed team. You will lead React Native development, architect scalable mobile solutions, and collaborate with backend teams to deliver high‑performance crypto wallet features across iOS and Android.

You will mentor engineers, guide architecture decisions, and own end‑to‑end mobile delivery while ensuring quality and security across the stack.

Qualifications

• Thoroughly experienced with React, React-Native (mainly around Expo), Redux and the core principles surrounding these.
• Highly proficient in JavaScript and ES6+.
• Experience with CI/CD pipelines for mobile development.
• Familiar with modern front-end pipelines and tools.
• Experienced with Native modules (C++), WebSockets, RESTful based APIs.
• Experience in Swift/Objective-C (iOS) or Kotlin/Java (Android) for low level implementation.
• Proven experience leading or mentoring mobile engineers.
• Demonstrated ability to own architecture for large scale React Native applications.
• Strong decision making skills in evaluating frameworks, tooling, and mobile development patterns.
• Experience with backend development using Node or similar environments, with the ability to implement or adjust APIs and services that power mobile features.
• Comfortable working across the stack when required, while still maintaining strong depth in mobile development.

Responsibilities

• Lead a small group of React Native engineers. Drive architectural decisions, enforce coding standards, and ensure timely high quality delivery.
• Design and build advanced cross platform applications for iOS and Android using React Native, review work from other engineers to ensure quality and architectural alignment, and contribute to backend services or APIs when required to support mobile functionality.
• Work closely with backend developers, integrate Javascript SDKs, libraries, and backend services into mobile applications, and extend backend logic when needed to complete end‑to‑end features.
• Collaborate with product managers, designers, and other developers to deliver innovative solutions.
• Own and define patterns for state management, navigation, performance, modularization, and security across mobile applications.

Skills

React

React Native

Redux

JavaScript/ES6+

CI/CD for mobile

Native modules (C++)

Swift/Obj-C

Kotlin/Java

Leadership

Architecture ownership

Node backend

Tools

Expo

WebSockets

REST APIs

Backend APIs integration

Job description

Tether is seeking a senior mobile engineer to join a global, remotely distributed team. You will lead React Native development, architect scalable mobile solutions, and collaborate with backend teams to deliver high‑performance crypto wallet features across iOS and Android.

You will mentor engineers, guide architecture decisions, and own end‑to‑end mobile delivery while ensuring quality and security across the stack.