React Developer — Sterling Trading Tech, Chicago, IL

We are seeking a React Native Developer to build and maintain mobile applications for iOS and Android. You will work with product managers, designers, and backend engineers to deliver secure, responsive applications with reliable performance and a clear user experience.

Responsibilities

• Develop and maintain mobile applications using React Native and TypeScript.

• Build reusable components and implement designs across different screen sizes and devices.

• Integrate REST APIs, WebSocket connections, and authentication services.

• Manage application state, data synchronization, loading states, and error handling.

• Optimize application startup, rendering, memory usage, and network performance.

• Implement secure sign-in, token storage, biometric authentication, and session management.

• Write appropriate automated tests and participate in code reviews.

• Troubleshoot production issues using logs, crash reports, and performance monitoring.

• Support application builds, releases, and submissions to the Apple App Store and Google Play.

• Collaborate on technical design, estimates, and development standards.

Required Qualifications

• Three or more years of professional software development experience, including hands-on React Native development.

• Strong proficiency in TypeScript, JavaScript, React, and React Native.

• Understanding of React hooks, component lifecycles, and state management.

• Experience integrating APIs and handling asynchronous operations.

• Familiarity with iOS and Android development tools, build processes, and platform differences.

• Experience with Git, code reviews, automated testing, and CI/CD pipelines.

• Understanding of mobile security, accessibility, and performance optimization.

• Strong troubleshooting, communication, and collaboration skills.

Preferred Qualifications

• Experience delivering and supporting applications published in the App Store or Google Play.

• Familiarity with Expo or native React Native build workflows.

• Familiarity with Kubernetes, Docker, Linux, and cloud platforms such as AWS or Azure.

• Experience with Redux Toolkit, Zustand, TanStack Query, or similar libraries.

• Knowledge of Swift, Kotlin, or native module integration.

• Experience with OAuth 2.0, OpenID Connect, and identity platforms such as Keycloak.

• Familiarity with push notifications, deep linking, and offline functionality.

• Experience building financial applications, trading interfaces, or applications that display frequently updating data.

Success in This Role

You will deliver reliable mobile features, maintain readable and testable code, resolve production issues effectively, and help improve application performance and the release process.

ABOUT STERLING TRADING TECH

Sterling Trading Tech (Sterling)’s mission is to provide market-leading, cloud-based trading infrastructure, encompassing Trading Platforms, OMS, and Risk products to support both buy-side and sell-side firms. Sterling’s clients include clearing firms, broker dealers, proprietary trading groups, and hedge funds in over 20 countries. Sterling systems currently process over 10% of all US matched equities.

Recently acquired by L Squared Capital Partners (L Squared), Sterling is entering a new phase of expansion and innovation. Sterling’s accelerated growth plans include additional staffing in both its product and sales organizations, new technology development and the release of incremental cloud services, with the addition of new asset classes and international coverage to drive global adoption of its offerings.

This is an exciting time to join Sterling’s growing team of trailblazers developing next generation trading technology in the fintech space.