--- title: 'Senior React SDK Developer at Stream' canonical: 'https://feeny.ai/job/senior-react-sdk-developer-stream-skopje-78k01k6vg1c5' type: 'job' last_seen: '2026-09-09' --- # Senior React SDK Developer at Stream - **Company:** Stream - **Location:** Skopje, North Macedonia - **Employment:** full-time - **Work type:** hybrid - **Posted:** 2026-08-10 - **Last confirmed live:** 2026-09-09 - **Apply:** https://jobs.ashbyhq.com/stream/d30f3304-a48b-492a-83d4-65f7fb7acdd4 ## Job description Stream is looking for a Senior React SDK Developer! This is a full-time job in our Skopje office in a hybrid setup (3 days in-office). WHAT WILL YOU BE DOING? As a Senior React SDK Developer, you will join our SDK team with the primary focus on developing and maintaining our React Chat https://github.com/GetStream/stream-chat-react, Feeds https://github.com/GetStream/stream-feeds-js and Video https://github.com/GetStream/stream-video-js SDKs and taking our products to the next level! ## RESPONSIBILITIES - Integrating new features from our roadmap, maintaining existing features - Supporting existing customers and prospects through various channels - Improving SDK’s documentation, keeping the SDKs modern and up-to-date - Collaborating with our Backend, Design and other SDK teams to clarify and improve the consistency of our feature implementations WHAT MAKES THIS ROLE EXCITING? - You’ll get to work on a products that are going to impact the lives of thousands of engineers and billions of end users - You’ll get to have your work showcased publicly - our SDKs are open source - You’ll deal with complex technical challenges, that allow our customers to build their envisioned integration ## ABOUT YOU ## OUR IDEAL CANDIDATE: - Comes from a startup background - Has 5+ years of experience - Has experience with open-source and building tools for developers - Solid understanding of React and popular React libraries - Has a solid understanding of the browser/framework performance - Enjoys working with TypeScript - Has a keen eye for UX detail, caring about accessibility - Good understanding of the standard performance optimization techniques (state management, memoization, virtualization, re-rendering cycles) - Practices and appreciates the value of a solid test suite ## BONUS POINTS: - Experience with React Native, Angular, Vue, or any other UI framework Don’t fall into all of the requirements? You don’t have to match every bullet as long as you can grow into the role and show us that you can provide value to the team. Do you want to know how to be successful in a process with us? Check this https://www.notion.so/Interviewing-with-Stream-everything-you-need-to-know-b024c23683ac4dc981614c6639cd7856?pvs=21. ## OUR TECH STACK At Stream, we use a wide collection of technologies to offer highly optimized and available features to our customers. Here is a shortlist of the technology that we currently use in the React Chat, Video and Feeds SDKs: - Modern React, TypeScript, RxJS, WebRTC, Protobuf, Twirp, OpenAPI - React Virtuoso, React Markdown and Remark, WASM and WebWorkers - Vitest, Jest, Playwright ## WHO WE ARE Stream has a casual, social, and playful culture. We are talented, highly technical, and collaborative which makes Stream a great place to learn and improve your skills. Our team is forward-thinking and diverse and we all have different backgrounds which lends to our creativity and innovation. With offices in Boulder and Amsterdam, our employees represent 15 countries, 11 languages and counting. Our team is passionate about tackling difficult tech problems at scale by creating reusable components that allow product owners to ship apps faster, more securely, and with a better user experience. Our culture is oriented towards ownership and quality; Our goal is to produce deliverable software. ## WHAT’S IN IT FOR YOU - A team of exceptional engineers - The chance to work on OSS projects - A competitive salary - Company equity - A pension scheme - A generous Learning and Development budget - Commute expenses to Amsterdam covered or option to use a company bike within the city - Gym membership of choice covered - MacBook Pro or another development setup - Healthy team lunches and plenty of snacks - A generous relocation package - An office in the heart of Amsterdam - The opportunity to attend or present to global conferences and meetups - The possibility to visit our office in Boulder, CO *These benefits apply to the office in Amsterdam and are adjusted depending on the location Stream provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training. Hybrid office policy: applicants based (or relocating to) one of our office locations are expected to work according to the applicable local office attendance policy. Equal opportunity employer statement: Stream provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training. Note for external recruiters: We currently have this role covered and do not accept unsolicited agency resumes. We are not responsible for any fees related to unsolicited resumes. ## About Stream ## Company Overview - **One-liner**: Stream provides a unified platform of APIs and SDKs for building scalable, real-time chat, video/audio, activity feeds, and AI-powered moderation features. - **Entity Type**: Private (Series B) - **Headquarters**: Boulder, Colorado, United States (with offices in Amsterdam, Netherlands; Skopje, North Macedonia; and Toronto, Canada) - **Founded**: 2015 - **Founders**: Thierry Schellenbach and Tommaso Barbugli ## Core Business - **Primary industry**: Technology, Information and Internet — specifically real-time communication infrastructure and developer tools. - **Target customers**: B2B — product and engineering teams at apps, social networks, marketplaces, gaming platforms, and any digital service needing in-app chat, video, or activity feeds. - **Mission or purpose**: To help apps build real-time experiences that scale, by handling the hard parts of real-time AI and infrastructure so developers can ship their actual product faster. ## Products & Services - **Chat Messaging API**: A scalable, low-latency chat API with support for offline, global messaging, and customizable UI kits. Type: SaaS API. - **Video & Audio API**: Real-time voice and video calling infrastructure. Type: SaaS API. - **Activity Feeds API**: A personalized feed engine for building social timelines and notification streams. Type: SaaS API. - **AI Moderation**: LLM-powered, real-time content moderation for text, image, video, and audio. Includes automated queues, reviewer workflows, and compliance support for DSA, Online Safety Acts, and COPPA. Type: SaaS API. - **Vision AI Agents (open-source)**: An open-source SDK for building multi-modal AI agents that can see, hear, and act — with features like RAG, tool use, phone calling, pose tracking, and object detection. Type: Open-source SDK. ## Market Standing - **Valuation/Market Cap**: Not publicly disclosed. - **Key Metric**: Total funding of **$58.25 million** (Series B). Annual revenue estimated at **$4.9 million**. - **Notable Investors/Partners**: Notable Capital (lead investor in Series A), Arthur Ventures (lead investor in Seed), Social Starts, and other investors. - **Growth Signals**: The company serves **2,000+ global apps** and powers experiences for **1+ billion end users**. Headcount is **131 employees**, growing **15.2% year-over-year** (+44 people). Operates in **26 countries** with 6 edge-server locations and a **99.999% uptime SLA**. They have recently launched an open-source Vision AI SDK and are expanding into AI agent infrastructure. ## Competitive Advantages - **Unified platform**: Combines chat, video, feeds, and moderation on a single shared infrastructure, eliminating the need to "duct-tape" multiple point solutions together. - **Performance**: Sub-9ms API response times and a battle-tested global edge network built for millions of concurrent users. - **Developer experience**: 10+ SDKs with typed APIs, clear docs, and customizable components. Ships in under 50 lines of code for many use cases. Open-source SDKs and zero lock-in. - **Enterprise readiness**: SOC 2 compliant on day one, with full audit logs, transparent reasoning, and compliance support for major regulations (DSA, COPPA, Online Safety Acts). - **AI-native**: Built-in LLM-powered moderation with fewer false positives, and a new open-source platform for multi-modal AI agents. ## Strategic Focus - **AI Agents**: A major push into real-time AI with the launch of the open-source Vision AI SDK, enabling voice, vision, and tool-use agents. Focus on edge-agnostic routing, low-latency pipelines, and modular plugins. - **Moderation & Compliance**: Deepening AI moderation capabilities to meet growing regulatory demands (DSA, Online Safety Acts). - **Global scale**: Continuing to expand edge infrastructure and support for a global customer base across 26+ countries. - **Developer community**: Maintaining and growing the open-source SDK ecosystem to drive adoption and reduce lock-in concerns. ## Why Work Here - **Culture**: Stream emphasizes mastery, transparency, and teamwork. The team is distributed across 35 nationalities with offices in Boulder, Amsterdam, Skopje, and Toronto. - **Remote/Hybrid/Office**: Offers a mix of in-office, remote (EU), and hybrid roles. Offices are located in Boulder (USA), Amsterdam (NL), Skopje (MK), and Toronto (CA). - **Notable perks**: - **Stock options** granted to all full-time employees. - **Comprehensive healthcare**, dental, and vision plans (US only) plus generous parental leave. - **401K** (US) and local pension scheme contributions (Amsterdam). - **Monthly fitness stipend**. - **Commuter benefits** (free office parking and transportation). - **Interesting technical challenges**: Working on real-time infrastructure at massive scale (1B+ end users, sub-9ms latency, 99.999% uptime). - **Engineering culture**: Heavy investment in open-source, SDK quality, and developer experience. The company is 50+ engineers strong and values shipping fast. ## Sources 1. [getstream.io](https://getstream.io/) 2. [LinkedIn](https://www.linkedin.com/company/getstream) 3. [Crunchbase](https://www.crunchbase.com/organization/getstream-io) 4. [getstream.io/team](https://getstream.io/team/) 5. [jobs.ashbyhq.com/stream](https://jobs.ashbyhq.com/stream) ## Other roles at Stream - [Senior Software Engineer, Infrastructure](https://feeny.ai/job/senior-software-engineer-infrastructure-stream-toronto-kns35txbfj83) — Toronto, Canada - [Lead Data Engineer](https://feeny.ai/job/lead-data-engineer-stream-amsterdam-3rpexa5hk74w) — Amsterdam, Netherlands - [Solutions Consultant II- Trust & Safety](https://feeny.ai/job/solutions-consultant-ii-trust-safety-stream-boulder-gnsw1bc5p3ky) — Boulder, CO - [Staff Backend Engineer – AI](https://feeny.ai/job/staff-backend-engineer-ai-stream-amsterdam-yjp9z96dpa8e) — Amsterdam, Netherlands - [Senior Software Engineer, Infrastructure](https://feeny.ai/job/senior-software-engineer-infrastructure-stream-amsterdam-q830c6f8ee32) — Amsterdam, Netherlands - [Sales Development Representative (US/Tech Sales)](https://feeny.ai/job/sales-development-representative-us-tech-sales-stream-boulder-azmhsaczzpdv) — Boulder, CO