QA Engineer / Developer for Full Website

This is a booking appointment website. I’m looking for an experienced QA engineer/developer to thoroughly test a SaaS web application and fix the issues you find.

This is not just a testing or bug-reporting job. I need someone who can identify problems, determine the cause, and make the necessary code fixes.

What I need

Thorough testing of the entire application
Desktop and mobile testing
Functional testing of all pages, buttons, forms, navigation, and user flows
Responsive design and layout testing
Authentication and account-flow testing
Booking and scheduling flow testing
Payment-related flow testing
Testing for broken features, errors, edge cases, and inconsistent behavior
UI/UX issues such as overlapping, cut-off, crowded, or incorrectly displayed content
Cross-browser testing
Fix the bugs and issues you find
Verify fixes and make sure they do not break other parts of the application
Run and maintain existing automated tests where appropriate
Provide a clear summary of what was found and fixed

Tech Stack

React 19, TypeScript, TanStack Start, TanStack Router, TanStack Query, Vite 8, Tailwind CSS v4, Radix UI/shadcn, Supabase/Postgres, Supabase Auth, Stripe, Twilio, React Email, Vitest, Playwright, and Cloudflare Workers.

The codebase is managed through GitHub.

I’m looking for someone who is comfortable working directly with this stack and can both QA and fix the application, rather than only sending me a list of bugs.