Fullstack Engineer (TypeScript), AI Engineering: Duo Client SDK at Gitlab

Fullstack Engineer (TypeScript), AI Engineering: Duo Client SDK

Gitlab · Remote, Canada; Remote, United StatesRemotomid

En corto

▸Desarrollar un SDK de tipo TypeScript para integrar AI en editores y apps de GitLab.
▸Trabajar en paquetes reutilizables, APIs públicas, y clientes isomórficos con enfoque en versión, compatibilidad y seguridad.
▸Destacado: el SDK será el cimiento para Duo en editores, chat web y aplicaciones externas.

Proficiency in English is required for collaboration across global teams.

En ~1 minuto te damos: quién te entrevista, las preguntas probables con respuestas desde tu CV, y tu CV adaptado a esta vacante. Gratis, sin tarjeta.

¿Qué piden?

✓Experiencia con TypeScript en frontend y backend.
✓Conocimiento en diseño de APIs públicas con versionado semántico.
✓Habilidad para extraer y publicar paquetes NPM bien documentados.
✓Compromiso con pruebas, calidad del código y revisiones de código.
✓Experiencia con construir aplicaciones isomórficas o multiplataforma.
✓Conocimiento en gestión de credenciales y seguridad (tokens, cookies, CSRF).

¿No cumplís todo? Es lo normal — tu dossier gratis te dice qué gaps tenés y cómo cubrirlos en la entrevista.

TypeScriptNode.jsNPMGitLab CI/CDVue 3REST APIsWeb APIsWebpackBabelJest

¿A quién escribirle en Gitlab?

Tu dossier gratis identifica a las personas que te entrevistarían — con su background, qué valoran y cómo escribirles para destacar antes de aplicar.

GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure software faster. The same principles built into our products are reflected in how our team works: we embrace AI as a core productivity multiplier, with all team members expected to incorporate AI into their daily workflows to drive efficiency, innovation, and impact. GitLab is where careers accelerate, innovation flourishes, and every voice is valued. Our high-performance culture is driven by our values and continuous knowledge exchange, enabling our team members to reach their full potential while collaborating with industry leaders to solve complex problems. Co-create the future with us as we build technology that transforms how the world develops software. * Fortune 500® is a registered trademark of Fortune Media IP Limited, used under license. Claim based on GitLab data. Fortune 100 refers to the top 20% ranked companies in the 2025 Fortune 500 list, published in June 2025. Fortune and Fortune Media IP Limited are not affiliated with, and do not endorse products or services of GitLab. An overview of this role 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.com, and eventually external applications can use. 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. The work rewards care about interfaces, versioning, and backward compatibility as much as features because other engineers will depend on what you build. 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. 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 What you'll do • 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 isomorphic core packages that isolate platform-specific behavior in adapters at the edges. • Build and improve SDK client surfaces, including Vue 3 components in Duo Chat on the web, in collaboration with product, design, and engineering teams. • Strengthen credential handling across hosts, including bearer tokens, session cookies, and CSRF protection. • Optimize bundle size, startup cost, and dependency weight for browser consumers, and support a Tie

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