As a Fullstack Engineer on the Duo Client SDK team at GitLab, you’ll build the shared foundation for every GitLab Duo client Today, the logic that powers Duo in editors lives inside the GitLab Language Server. We’re extracting it into a true software development kit (SDK): a set of well-versioned TypeScript packages that editor extensions, our web-based Duo Chat on GitLab.
You’ll work in TypeScript across frontend and backend systems. You’ll design the SDK’s Node.js core and public application programming interface (API), and work in the clients that use it You’ll have senior and staff engineers alongside you to help with design. You’ll own the implementation of scoped packages and ship improvements with minimal guidance while collaborating with the team on larger architectural changes Develop secure, well-tested, and performant TypeScript features that solve technical problems of moderate scope and complexity Ship small features and improvements with minimal guidance, writing tests with every merge request and contributing to code reviews and design discussions Extract and publish TypeScript packages from the GitLab Language Server, migrating consumers incrementally so no parallel implementation is left to drift Design durable public APIs with clear interfaces, semantic versioning, changelogs, and deprecation paths for external consumers Build and improve SDK client surfaces, including Vue 3 components in Duo Chat on the web, in collaboration with product, design, and engineering teams Optimize bundle size, startup cost, and dependency weight for browser consumers,



and support a Tier 2 on-call rotation for urgent engineering issues Some examples of our projects: The Duo Client SDK, extracting versioned, publishable packages from the GitLab Language Server The GitLab Language Server, rebuilt on top of the SDK as our polyglot surface Duo Chat on the web, as one of the SDK’s first consumers The Duo Client SDK team sits in GitLab’s AI Clients stage and works closely with teams building GitLab Duo experiences We collaborate across client surfaces to make thoughtful technical decisions as the platform evolves. We work fully remotely and asynchronously across regions, in the open, following GitLab’s values of transparency and open communication Equity compensation & Employee Stock Purchase Plan offered A security-minded development approach, including careful credential handling and performance optimization Experience with Vue 3 and the Composition API, or comparable component-based frontend experience and a willingness to learn Vue Self-motivation, strong organizational skills, and the judgment to ask for help when needed while thriving in a fully remote organization aligned with GitLab’s values Ability to communicate clearly and concisely in writing about technical problems, propose iterative solutions, and work effectively in an agile workplace Strong proficiency with TypeScript across frontend and backend systems, including experience building and maintaining Node.js services Understanding of the differences between running code in Node.js and in the browser, and how to write code that works in both

📌 Full Stack Engineering (Ottawa)
🏢 GitLab
📍 Ottawa