Senior Web & React Native SDK Engineer

5+ years of professional experience with JavaScript / TypeScript. Strong proficiency in TypeScript. Proven experience building and maintaining SDKs, libraries, or reusable packages. Experience supporting React Native across both iOS and Android environments. Experience building browser-based SDKs and handling cross-browser compatibility. Strong experience consuming and abstracting RESTful APIs. Experience publishing, versioning, and maintaining packages via npm. Proficiency with Git and modern CI/CD pipelines. Strong communication skills and advanced English.

Design, develop, and maintain Web and React Native SDKs. Build SDK APIs that wrap company REST services. Ensure SDK stability, performance, and backward compatibility. Manage SDK versioning, releases, and dependency coordination. Publish and maintain SDK packages via npm. Develop and maintain unit tests for SDK logic. Optimize SDK size, performance, and reliability. Maintain SDK documentation, integration guides, and usage examples. Maintain demo applications for SDK validation. Collaborate with Backend, iOS, and Android SDK engineers. Participate in technical discussions around architecture and API design. Contribute to CI/CD pipelines for SDK build, test, and release.