Senior React Native Mobile Engineer - Fintech

Sterling Trading Tech; Chicago (IL); On-site; USD 90,000 - 130,000; Full time

Job summary

Sterling Trading Tech is seeking a React Native Developer to build and maintain mobile apps for iOS and Android, collaborating with product managers, designers, and backend engineers to deliver secure, responsive experiences.

Responsibilities include building reusable components, integrating APIs, and optimizing performance, startup times, and reliability, with focus on secure sign-in, error handling, and end-to-end release processes for App Store and Google Play.

Qualifications

• 3+ years of professional React Native development.
• Understanding of React hooks, component lifecycles, and state management.
• Experience integrating APIs and handling asynchronous operations.
• Familiarity with iOS and Android development tools and CI/CD pipelines.
• Strong troubleshooting, communication, and collaboration skills.

Responsibilities

• Develop and maintain mobile apps using React Native and TypeScript.
• Build reusable components and implement designs across screen sizes.
• Integrate REST APIs, WebSocket connections, and authentication services.
• Manage application state, data synchronization, loading states, and error handling.
• Optimize startup, rendering, memory usage, and network performance.
• Implement secure sign-in, token storage, biometric authentication, and session management.
• Write automated tests and participate in code reviews.
• Troubleshoot production issues using logs, crash reports, and performance monitoring.
• Support builds, releases, and submissions to Apple App Store and Google Play.
• Collaborate on technical design, estimates, and development standards.

Skills

React Native

TypeScript

REST APIs

Git/Code reviews

CI/CD

Job description

Sterling Trading Tech is seeking a React Native Developer to build and maintain mobile apps for iOS and Android, collaborating with product managers, designers, and backend engineers to deliver secure, responsive experiences.

Responsibilities include building reusable components, integrating APIs, and optimizing performance, startup times, and reliability, with focus on secure sign-in, error handling, and end-to-end release processes for App Store and Google Play.