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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
- 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 Tier 2 on-call rotation for urgent engineering issues.
- Strong proficiency with TypeScript across frontend and backend systems, including experience building and maintaining Node.js services.
- Experience with modern build and packaging tools, including monorepos, multi-module builds, ECMAScript modules (ESM), and dependency management.
- Experience with Vue 3 and the Composition API, or comparable component-based frontend experience and a willingness to learn Vue.
- Experience designing APIs that other people use, with the ability to explain what you'd do differently.
- Understanding of the differences between running code in Node.js and in the browser, and how to write code that works in both.
- A security-minded development approach, including careful credential handling and performance optimization.
- Ability to communicate clearly and concisely in writing about technical problems, propose iterative solutions, and work effectively in an agile environment.
- 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.
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.
The base salary range for this role’s listed level is currently for residents of the United States only. This range is intended to reflect the role's base salary rate in locations throughout the US. Grade level and salary ranges are determined through interviews and a review of education, experience, knowledge, skills, abilities of the applicant, equity with other team members, alignment with market data, and geographic location. The base salary range does not include any bonuses, equity, or benefits. See more information on our benefits and equity. Sales roles are also eligible for incentive pay targeted at up to 100% of the offered base salary.
- Benefits to support your health, finances, and well-being
- Flexible Paid Time Off
- Team Member Resource Groups
- Equity Compensation & Employee Stock Purchase Plan
- Growth and Development Fund
- Parental Leave
Please note that we welcome interest from candidates with varying levels of experience; many successful candidates do not meet every single requirement. Additionally, studies have shown that people from underrepresented groups are less likely to apply to a job unless they meet every single qualification. If you're excited about this role, please apply and allow our recruiters to assess your application.
Country Hiring Guidelines: GitLab hires new team members in countries around the world. All of our roles are remote, however some roles may carry specific location-based eligibility requirements. Our Talent Acquisition team can help answer any questions about location after starting the recruiting process.
Privacy Policy: Please review our Recruitment Privacy Policy. Your privacy is important to us.
GitLab is proud to be an equal opportunity workplace and is an affirmative action employer. GitLab’s policies and practices relating to recruitment, employment, career development and advancement, promotion, and retirement are based solely on merit, regardless of race, color, religion, ancestry, sex (including pregnancy, lactation, sexual orientation, gender identity, or gender expression), national origin, age, citizenship, marital status, mental or physical disability, genetic information (including family medical history), discharge status from the military, protected veteran status (which includes disabled veterans, recently separated veterans, active duty wartime or campaign badge veterans, and Armed Forces service medal veterans), or any other basis protected by law. GitLab will not tolerate discrimination or harassment based on any of these characteristics. See also GitLab’s EEO Policy and EEO is the Law. If you have a disability or special need that requires accommodation, please let us know during the recruiting process.
Skills Required
- Strong proficiency with TypeScript across frontend and backend systems
- Experience building and maintaining Node.js services
- Experience with modern build and packaging tools, including monorepos, multi-module builds, ECMAScript modules, and dependency management
- Experience with Vue 3 and the Composition API, or comparable component-based frontend experience with willingness to learn Vue
- Experience designing APIs used by other people
- Understanding of differences between Node.js and browser runtime environments
- Security-minded development approach, including credential handling and performance optimization
- Clear and concise written communication about technical problems
- Ability to propose iterative solutions and work effectively in an agile environment
- Self-motivation and strong organizational skills
- Judgment to ask for help when needed and ability to work effectively in a fully remote organization
GitLab Compensation & Benefits Highlights
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Healthcare Strength — Medical coverage offers multiple U.S. plan options (Cigna in most states and Kaiser in CA/HI) alongside dental, vision, and an Employee Assistance Program. Handbook materials also note HSA availability with company contributions when enrolled in the HDHP.
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Parental & Family Support — Paid parental leave is documented at 16 weeks, with U.S. leave administration supported by Tilt as of February 2, 2026. Caregiving and backup care resources are also referenced for many roles and locations.
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Fair & Transparent Compensation — Compensation practices are described in a public handbook with standardized, market‑based frameworks, annual reviews, equity refreshes, and clear ranges visible internally as of May 2026. This documentation helps candidates and employees see current specifics and understand how pay is set.
GitLab Insights
What We Do
GitLab is the Intelligent Orchestration Platform where software teams and their AI agents stay in flow to amplify their capacity for innovation. Together, they automate repetitive tasks to plan, build, secure, test, deploy and maintain software. With GitLab, software teams spend less time on coordination overhead and more time on the next big idea. What started in 2011 as an open source project to help one team of programmers collaborate is now the intelligent orchestration platform millions of people use to deliver software faster, more efficiently, while strengthening security and compliance. Since the beginning, we've been firm believers in remote work, open source, DevSecOps, and iteration. We get up and log on in the morning to work alongside the GitLab community to deliver new innovations every month that help teams and their AI agents ship great code faster.
Why Work With Us
GitLab is where careers accelerate, innovation flourishes, and every voice is valued. Co-create the future with us as we build technology that transforms how the world develops software.
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