Senior Frontend Engineer (React + Chrome Extension)

2 months ago

Hyderābād, IndiaSenior

Responsibilities

Build the Agent UI shell, Chrome extension, slide-out or pill workspace, Control UI, and per-module panels.
Develop the React application and Chrome extension using Manifest V3, content scripts, injected iframes, and page-overlay UI.
Build WebSocket-driven real-time interfaces over live voice, desktop, and AI event streams.
Implement plugin, module-federation, or dynamic-component-loading patterns.
Own screen-real-estate management and the design system in code.
Manage streaming state, optimistic updates, reconnect and replay handling, and conflict resolution.
Optimize rendering performance through profiling, virtualization, and sub-frame updates.
Build secure extension integrations using CSP, sandboxing, and isolated worlds.
Deliver automated UI tests and accessible, keyboard-first user flows.
Commit to and deliver timelines in a rapid startup-style development environment.

7+ years of frontend engineering experience.
Senior-level React and TypeScript expertise is mandatory.
Strong HTML5 and JavaScript skills with browser-platform expertise.
Real Chrome Extension experience, including Manifest V3, content scripts, messaging, and injecting UI into host pages.
Experience with canvas, SVG, WebGL, animation, and browser rendering.
Strong UI and design skills with the ability to create polished interfaces independently.
Strong API design and consumption skills, plus familiarity with pub/sub, event streams, WebSockets, ordering, reconnects, and state synchronization.
Experience building heavy WebSocket or real-time user interfaces driven by live event streams.
Experience with plugin, module-federation, or dynamic-component-loading architectures.
Experience with performance profiling, virtualization, dense data interfaces, and high-frequency updates.
Fluency with extension security concepts including CSP, sandboxing, and isolated worlds.
Experience with automated UI testing such as Playwright-class tools.
Commitment to accessibility and keyboard-first interaction design.
Go literacy is preferred.

Full-time employment.
Fully remote work arrangement.
Opportunity to build AI customer-experience products for large enterprise deployments.
Fast-moving innovation-group environment with one-week sprints and Friday demos.

1,001-5,000 employees