S/KSerhii Kryvoruchko

Chrome · Manifest V3 · AI APIs

Chrome extension development

I co-founded and built Upwex – an AI Chrome extension used by 10,000+ freelancers. That means I've already hit the walls you'd hit: Manifest V3 service-worker limits, content-script isolation, store review rejections, AI API cost control – and I know the way around each one.

What you get

Chrome Web Store release

A published extension that passes review – permissions justified, privacy policy in place, listing optimized.

Manifest V3 architecture

Service workers, content scripts and messaging designed around MV3's real constraints, not the docs' happy path.

AI integration that scales

LLM-powered features with prompt pipelines, caching and cost ceilings – AI that helps users without burning your margin.

Companion web app & billing

Subscription management, analytics dashboards and real-time sync between the extension and your backend.

How it works

  1. 01

    Scope

    The user moment the extension owns, the permissions it needs, and the review risks – mapped before code.

  2. 02

    Architecture

    MV3 module plan: what lives in the service worker, the content script, the popup, the backend.

  3. 03

    Build

    Unpacked builds you can load and click every week.

  4. 04

    Store & beyond

    Review submission, launch, and an update cadence that keeps ratings healthy.

Stack

  • Chrome Extensions
  • Manifest V3
  • React
  • TypeScript
  • Node.js
  • AI APIs

Sound like your project?

Get in touch