Senior React SDK Developer
Hybrid · Senior 5+ yrs · 3 months ago
Posted by Oliver Lazoroski. “Oliver Lazoroski, Senior Engineering Manager at Stream, is hiring a Senior React SDK Engineer for the team in Skopje (hybrid). The role focuses on the open-source React Chat, Video, and Feeds SDKs, which are used by apps reaching over a billion end users.”
Quick Take
Senior React SDK developer role at Stream, in Skopje (hybrid). You build and maintain the open-source React Chat, Video, and Feeds SDKs used by apps reaching over a billion end users. The engineering manager shared the opening directly on LinkedIn — a live, high-signal team post.
🏢 About Stream
Stream provides the chat, activity feeds, and video APIs that power in-app communication for thousands of companies. Its developer tools include open-source React, React Native, and other SDKs. Founded in Amsterdam, with offices in Amsterdam and Boulder, Colorado, the team spans 15 countries and 11 languages.
🎯 The Role
Stream is looking for a Senior React SDK Developer to join the SDK team in Skopje (hybrid). You'll focus on developing and maintaining the React Chat, Feeds, and Video SDKs — open source, publicly showcased, and embedded by apps that reach over a billion end users. Applicants based in or relocating to a Stream office location are expected to follow the local office attendance policy.
🛠️ Tech Stack
- Modern React, TypeScript
- RxJS, WebRTC, Protobuf, Twirp, OpenAPI
- React Virtuoso, React Markdown and Remark
- WASM and Web Workers
- Vitest, Jest, Playwright
💼 What You'll Do
- Integrate new roadmap features and maintain existing ones across the React SDKs
- Support existing customers and prospects across channels
- Improve SDK documentation and keep the libraries modern and up to date
- Collaborate with Backend, Design, and other SDK teams for consistent implementations
✅ What You'll Need
- 5+ years of experience, ideally from a startup background
- Experience with open source and building tools for developers
- Solid understanding of React and popular React libraries
- Strong TypeScript and a good grasp of browser and framework performance
- A keen eye for UX detail, caring about accessibility
- Understanding of performance techniques: state management, memoization, virtualization, re-rendering cycles
- A practiced, valued test suite
🌟 Nice to Have
- Experience with React Native, Angular, Vue, or other UI frameworks
- Matching every bullet is not required — growth into the role counts
Why This Role?
This listing comes straight from a hiring manager or recruiter post — not an ATS scrape. You can often reach out directly, and these roles move fast. The tech stack leans on React, TypeScript, JavaScript.
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