You will get a Next.js or React bug diagnosed in writing and fixed when in scope
Project details
Something in your React or Next.js app is broken, and you have already lost an evening to it. This is a scoped diagnosis, not a guess.
What you are buying is a fixed investigation box and a written root cause report at the end of it: 90 minutes on one bug on Starter, 2 hours per bug on Standard, 3 hours per bug on Advanced.
If the cause sits in your front end, your Next.js routing, your build or your deploy config, I fix it and hand you the diff, with comments on the changed lines from Standard upward.
If the cause turns out to sit somewhere else, a backend you own, a third-party service, or a rewrite the bug is really asking for, you still get the report telling you exactly what is wrong and where, and I quote that work separately. I will not promise a fix on code I have not seen yet, and you should be wary of anyone who does.
Typical work: hydration and server component errors, broken builds and failed deploys, state and re-render bugs, form and API route problems, layout breaking on one browser, and slow pages.
Send the repo and the reproduction steps and I will start. Message me here on Upwork if you are unsure which tier fits.
What you are buying is a fixed investigation box and a written root cause report at the end of it: 90 minutes on one bug on Starter, 2 hours per bug on Standard, 3 hours per bug on Advanced.
If the cause sits in your front end, your Next.js routing, your build or your deploy config, I fix it and hand you the diff, with comments on the changed lines from Standard upward.
If the cause turns out to sit somewhere else, a backend you own, a third-party service, or a rewrite the bug is really asking for, you still get the report telling you exactly what is wrong and where, and I quote that work separately. I will not promise a fix on code I have not seen yet, and you should be wary of anyone who does.
Typical work: hydration and server component errors, broken builds and failed deploys, state and re-render bugs, form and API route problems, layout breaking on one browser, and slow pages.
Send the repo and the reproduction steps and I will start. Message me here on Upwork if you are unsure which tier fits.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$95
|
Standard
$225
|
Advanced
$550
|
|---|---|---|---|
| Delivery Time | 3 days | 5 days | 9 days |
Number of Revisions | 1 | 2 | 3 |
Bug Investigation | |||
Fix Documentation | |||
Detailed Code Comments | - |
About Syed Afthab Hussain
Full Stack Developer | Next.js, React & Supabase | Web Apps & CRMs
Chennai, India - 9:30 pm local time
RECENT WORK
WebLeads CRM - a multi-tenant SaaS for a web agency. Next.js 16, React 19, Supabase with row-level security on every table, multi-currency invoicing with automatic FX, a quote-to-invoice pipeline, public share links, soft deletes and an audit log. Live and pen-tested.
ZohoForge CRM - a lead pipeline with a kanban board, automation flags and a token-guarded ingest API. Built so the browser holds no privileged key at all: writes go through a SECURITY DEFINER Postgres function, so no service-role secret exists anywhere in the deployment.
Scroll-driven brand experiences - a single unbroken zoom across 40 orders of magnitude, a descent to the Challenger Deep with real pressure and light curves, 4.5 billion years of Earth in one scroll. Canvas, WebGL and shader work with sound design.
Client sites for beauty, photography and food businesses, including booking flows and e-commerce.
HOW I WORK
I care about the parts that bite later. Row-level security written before the feature, not after. Reads paginated so an API row cap cannot silently truncate your data. Soft deletes so a mis-click is recoverable. Motion that respects prefers-reduced-motion. If I find a problem in your brief, I will tell you before I build the wrong thing.
STACK
Frontend: React, Next.js (App Router), TypeScript, Tailwind CSS, Canvas, WebGL
Backend: Next.js API routes, Node.js, PostgreSQL, Supabase, REST APIs
Tooling: Vercel, Git, Playwright for end-to-end testing
Based in Chennai, India, and comfortable working across US, UK, Europe and Australia hours.
Happy to start with a small paid scope so you can judge the work before committing to the whole build.
Steps for completing your project
After purchasing the project, send requirements so Syed Afthab Hussain can start the project.
Delivery time starts when Syed Afthab Hussain receives requirements from you.
Syed Afthab Hussain works on your project following the steps below.
Revisions may occur after the delivery date.
Reproduce and diagnose
I run your app, reproduce the bug from your steps, and work the fixed investigation box for your tier to find the actual cause.
Report and fix in scope
You get a written root cause report. If the cause is in scope I apply the fix and hand you the diff, with comments on the changed lines.