Browse categories
Explore
Fiverr Pro
English
$
USD
I will fix your react nextjs or nodejs bug within 24 hours
Joaquim Peixoto
About this gig
Broken build? Cryptic React error? An API route that used to work and now 500s? Send it over and I'll fix it fast and show you exactly what was wrong.
I'm Joaquim, a full-stack dev with 6+ years' experience. I've shipped TWO complete AI SaaS platforms solo (SnapSkill, FlowSense), both live on Next.js, TypeScript, Node, Supabase, Stripe and Clerk. Your bug lands on someone who debugs this exact stack every day.
WHAT I FIX: React and Next.js (hydration, routing, build failures, state and TS errors); Node, Express and NestJS (500s, async bugs, CORS, env vars); data and auth (Supabase and RLS, Clerk auth, Stripe webhooks).
HOW IT WORKS: send the repo or a snippet with steps to reproduce and expected vs actual; I reproduce and scope it honestly before starting; then I fix it, push the change, and send a short Loom of the fix.
You get a real root cause, clean code and a video walkthrough, not copy-pasted guesses. Launch pricing is intentionally competitive: senior debugging at a first-client rate. All work stays on Fiverr.
Message me your repo or bug and I'll tell you honestly if I can help and how long it'll take.
Get to know Joaquim Peixoto
Joaquim Peixoto
FullStack Developer
- FromPortugal
- Member sinceJul 2026
Languages
English, Portuguese
I'm a full-stack developer with 6+ years' experience, based in Portugal, having worked with teams in the UK, Netherlands and Germany.
My edge: I've shipped TWO complete AI SaaS platforms solo, end-to-end — SnapSkill and FlowSense — both live on Next.js, TypeScript, Node/NestJS, the Anthropic Claude API, Stripe, Clerk and Supabase.
Hire me and you get someone who ships the whole thing: auth, payments, database, AI and deploy. I fix and deploy broken apps, integrate Claude or OpenAI, and build production SaaS. Clear scope, honest timelines.
Other Software Development Services I Offer
FAQ
What do you need from me to start?
The repo link or a code snippet, the exact steps to reproduce, and what you expected vs what actually happens. If I can't reproduce it from your steps, I'll tell you before starting so you're never charged for guesswork.
What counts as one bug?
One reproducible issue in one place. If you have several unrelated bugs, that's the Standard or Premium tier, or separate orders. I'll always tell you up front which fits, so pricing stays fair and delivery stays fast.
Which stacks do you cover?
React, Next.js (13 to 16), Node.js, Express, NestJS and TypeScript, plus Supabase, PostgreSQL, Clerk auth and Stripe. If your bug touches auth, database or payments, I work with all of these in production every day.
Will I own the code, and how many revisions do I get?
You own 100% of everything I write or change - I push to your repo or send a patch, your choice. Revisions are 2 on Basic and Standard and 3 on Premium, all within the originally agreed scope.
Do you only fix the one bug, or check for more?
Every order includes a free 51-point production audit of your app - I flag security holes, exposed keys, broken Supabase RLS, Stripe webhook issues and performance problems, so you know what else needs attention, not just the bug you reported.
