Senior Web & React Native SDK Engineer

About the role

Location: Remote
Employment Type: Full-Time / Contract

Role Summary

We are looking for a Senior Web & React Native SDK Engineer to own and evolve our Web and React Native SDKs , enabling client and partner applications to integrate reliably with our APIs across browser and mobile environments.

This is a platform / SDK engineering role focused on stability, backward compatibility, and developer experience , ensuring consistent SDK behavior across Web, iOS, and Android platforms.

Responsibilities

• Design, develop, and maintain Web and React Native SDKs.

• Build and evolve SDK APIs that wrap REST services for event reporting and personalization.

• Ensure SDK stability, performance, and backward compatibility for client and partner integrations.

• Manage SDK versioning, releases, and dependency coordination across packages.

• Publish and maintain SDK releases via npm.

• Develop and maintain unit and integration tests for shared and platform-specific SDK logic.

• Maintain SDK documentation and developer integration guides.

• Maintain Web and React Native demo applications (JavaScript/JSX) to showcase and validate SDK functionality.

• Collaborate with Backend, iOS, and Android SDK engineers to align cross-platform behavior.

Requirements

• 5+ years of JavaScript/TypeScript experience with strong proficiency in TypeScript.

• Proven experience building and maintaining SDKs, libraries, or reusable packages (beyond application development).

• Experience supporting React Native on both iOS and Android platforms.

• Experience building browser-based SDKs with cross-browser compatibility considerations.

• Strong experience consuming REST APIs.

• Experience publishing, versioning, and maintaining packages via npm.

• Proficiency with Git and CI/CD pipelines.

Nice to Have

• Experience supporting external or partner SDK consumers.

• SDK-level error modeling, logging, and diagnostics experience.

• Experience with package bundling, tree-shaking, and size optimization.

• Familiarity with native bridges in React Native.

• Experience collaborating with iOS and Android SDK teams.