CareerPlan

Senior Full Stack Engineer

Hybrid LondonFull-time2026-10-09 → 2026-11-11
Hybrid

Core

Build the H Platform web app and HoloTab Chrome extension to allow teams to deploy, monitor, and replay AI agents acting on computers.

Role type

Senior Full Stack Engineer (Front-end focus)

Builds

H Platform web app, HoloTab Chrome extension, live run views, and replay interfaces

Domain

AI Agents, Browser Automation, Front-end Engineering

Deliverable

product features

Required skills

React, TypeScript, Python, Front-end development, API design, Concurrent programming, Async data handling, UI/UX design

Preferred skills

Chrome extensions, Chrome DevTools Protocol, Real-time interfaces (streaming, SSE, WebSockets), Design systems, FastAPI, Preact, Vite

Responsibilities

Build the H Platform web app, Build and improve the HoloTab extension, Design the live run view and replay, Change Python APIs behind features, Set shared component patterns, Make long-running workflows easier for FDEs and customers to deploy and watch

Seniority

Senior, hands-on IC