Senior Full Stack Engineer

You'll build the interfaces people use to run H's agents: the H Platform, where teams deploy an agent, follow it live and replay what it did step by step, and HoloTab, our Chrome extension that controls the browser on its user's behalf. The work is mostly front end, in React and TypeScript, with changes to the Python APIs behind it when a feature calls for them.

H builds agents that use a computer the way a person does, in the browser and on the desktop.

What you'll own

How people watch, steer and replay an agent while it acts on a computer, which has few established patterns yet. You'll decide how a live run appears and plays back, how live data gets to the screen, how a feature splits between front end and API, and which components become shared standards. We'll judge the work by what ships to users, by front-end quality held in CI, and by whether people can follow and control what an agent did.

What you'll be doing

• Building the H Platform web app

• Building and improving the HoloTab extension

• Designing the live run view and replay

• Changing the Python APIs behind a feature

• Setting shared component patterns

• Making long-running workflows easier for FDEs and customers to deploy and watch

The first year

Within three months, a feature you built, API change included, is with users. Within six, one surface is yours, such as live runs and replay or the HoloTab interface, and the team comes to you about it. Within a year, you're working across several of our products, agreeing what to build with their owners and then building it.