---
title: 'Fullstack Engineer (TypeScript), AI Engineering: Duo Client SDK at GitLab'
canonical: 'https://feeny.ai/job/fullstack-engineer-typescript-ai-engineering-duo-client-sdk-gitlab-canada-drkd1n0qm2kx'
type: 'job'
last_seen: '2026-10-14'
---

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

- **Company:** GitLab
- **Location:** Canada / United States
- **Compensation:** $115k–$194k
- **Work type:** remote
- **Posted:** 2026-08-21
- **Last confirmed live:** 2026-10-14
- **Apply:** https://job-boards.greenhouse.io/gitlab/jobs/8698330002

## Job description

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](https://www.youtube.com/watch?v=OuZIb5zszQI) 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 Tier 2 on-call rotation for urgent engineering issues.

## What you'll bring

- 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.

## About the team

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.

Remote-Global 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](https://about.gitlab.com/handbook/total-rewards/benefits/general-and-entity-benefits/) and [equity](https://about.gitlab.com/handbook/stock-options/). Sales roles are also eligible for incentive pay targeted at up to 100% of the offered base salary.

United States Salary Range $115,200—$194,400 USD

How GitLab Supports Full-Time Employees

- [Benefits to support your health, finances, and well-being](https://about.gitlab.com/handbook/total-rewards/benefits/general-and-entity-benefits/)
- [Flexible Paid Time Off](https://handbook.gitlab.com/handbook/people-group/time-off-and-absence/time-off-types/#flexible-paid-time-off-pto)
- [Team Member Resource Groups](https://handbook.gitlab.com/handbook/company/culture/inclusion/tmrg-tmag/)
- [Equity Compensation & Employee Stock Purchase Plan](https://handbook.gitlab.com/handbook/total-rewards/stock-options/)
- [Growth and Development Fund](https://handbook.gitlab.com/handbook/people-group/learning-and-development/growth-and-development/)
- [Parental Leave](https://about.gitlab.com/handbook/total-rewards/benefits/general-and-entity-benefits/#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](https://about.gitlab.com/company/culture/inclusion/#examples-of-select-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.](https://handbook.gitlab.com/handbook/hiring/candidate-faq/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](https://about.gitlab.com/handbook/people-policies/inc-usa/#equal-employment-opportunity-policy) and [EEO is the Law](https://about.gitlab.com/handbook/labor-and-employment-notices/#eeoc-us-equal-employment-opportunity-commission-notices). If you have a disability or special need that requires [accommodation](https://about.gitlab.com/handbook/people-policies/inc-usa/#reasonable-accommodation), please let us know during the [recruiting process](https://about.gitlab.com/handbook/hiring/interviewing/#adjustments-to-our-interview-process).

## About GitLab

## Company Overview
- **One-liner**: GitLab provides an intelligent orchestration platform for DevSecOps, enabling teams and AI agents to plan, build, secure, and deploy software faster.
- **Entity Type**: Public (NASDAQ: GTLB)
- **Headquarters**: San Francisco, CA, USA
- **Founded**: 2011
- **Founders**: Not explicitly listed in provided materials

## Core Business
- Primary industry: DevSecOps, Software Development Lifecycle Platform
- Target customers: Enterprise, SMB, B2B – used by over 100,000 organizations including large enterprises
- Mission / Purpose: "Unlock every team to ship trusted software at the speed of imagination"

## Products & Services
- **[GitLab Platform](https://about.gitlab.com/company/)**: Integrated DevSecOps/DevOps platform (SaaS and self-managed) covering source code management, CI/CD, security scanning, monitoring, and AI-powered features (e.g., Duo Agent).
- **GitLab Duo**: AI-powered suite of tools for code generation, review, and automation across the software lifecycle.

## Market Standing
- **Valuation / Market Cap**: Not disclosed in provided materials (public company – refer to NASDAQ: GTLB)
- **Key Metrics**: Over 50 million registered users, 2,500+ team members, 5,500+ code contributors, 2,500+ consecutive monthly releases (as of June 2026)
- **Notable Investors / Partners**: Public company; prior investors include Y Combinator (2015 cohort). Detailed list not provided.
- **Growth Signals**: 100,000+ organizations use GitLab; continuous monthly releases since 2011; expanding AI capabilities (Duo Agent); certification as Great Place to Work (US & India, 2026–2027)

## Competitive Advantages
- **All-in-one DevSecOps platform** that replaces multiple point tools, reducing complexity and toolchain friction.
- **Strong open-source heritage** and community-driven innovation (5,500+ contributors).
- **AI-first approach** with built-in agents for code generation, review, and security.
- **Culture of transparency** – handbook-first, public-by-default documentation that scales remote work.

## Strategic Focus
- **AI-powered software creation**: Deep integration of AI agents (Duo Agent) to accelerate development while maintaining security and compliance.
- **Enterprise adoption**: Scaling to meet the needs of large, regulated organizations with compliance and security features.
- **Remote-first operations**: Continuing to build and improve asynchronous, all-remote work culture as a competitive advantage.

## Why Work Here
- **Fully remote**: 100% remote company from the start – work from anywhere; asynchronous and flexible schedules.
- **Awards & recognition**: Great Place to Work Certified (US & India 2026–2027); BuiltIn Best Remote Places to Work 2026; Fortune Best Workplaces in Technology 2025.
- **Benefits**: Equity compensation, Employee Stock Purchase Plan, generous paid time off, annual growth & development benefit, access to LinkedIn Learning and leadership programs.
- **Inclusive culture**: Multiple Team Member Resource Groups, strong Diversity, Inclusion & Belonging (DIB) commitment.
- **Learning & development**: Industry-leading leadership programs and platforms like LinkedIn Learning and Level Up.

## Sources
1. [about.gitlab.com](https://about.gitlab.com/jobs/)
2. [about.gitlab.com/company](https://about.gitlab.com/company/)
3. [handbook.gitlab.com](https://handbook.gitlab.com/handbook/people-group/employment-branding/content-library/)
4. [job-boards.greenhouse.io](https://job-boards.greenhouse.io/gitlab/jobs/8481958002)
5. [about.gitlab.com (homepage)](https://about.gitlab.com/)

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