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

Type Script Vue Node.js 9,600 – 16,200 $

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•••••
• is the intelligent orchestration platform for Dev Sec Ops . •••••
• 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 •••••
• 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. •••••
• is where careers accelerate, innovation flourishes, and every voice is valued. Our high-performance culture is driven by our valuesand 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.

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• 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 •••••• .

An overview of this role

As a Fullstack Engineer on the Duo Client SDK team at •••••• , you'll build the shared foundation for every •••••
• Duo client. Today, the logic that powers Duo in editors lives inside the •••••
• Language Server. We're extracting it into a true software development kit (SDK): a set of well-versioned Type Script packages that editor extensions, our web-based Duo Chat on •••••••••• , and eventually external applications can use.

You’ll work in Type Script 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 •••••
  • Language Server
• The •••••
  • 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 Type Script 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 Type Script packages from the •••••
  • Language Server, migrating consumers incrementally so no parallel implementation is left to drift.
• Design durable public APIs with clear interfaces, semantic versioning, change logs, 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,…