You will get your Next.js or Node production app debugged by a senior engineer fast
Rising Talent
Rising Talent
Project details
Senior debugger — not the $5 service that ships a band-aid fix and disappears.
I've shipped 8,700+ hours of production work across enterprise migrations, multi-tenant SaaS, AI-powered apps, and high-volume APIs. I debug Next.js, Node, NestJS, React, and TypeScript apps that real users depend on.
Live work: TPE-ATS BACON (NestJS migration from Clarion legacy), HomeScanr (5-service AWS deployment), SocialApps-Fi (Stripe webhook hardening), TunzaRx (Laravel + Stripe).
What you actually get:
→ Root cause, not symptom fix. I find why the bug happens, not just patch the visible symptom.
→ Clean Git commits. Not "fixed it" blob commits — proper diff-readable changes.
→ Loom walkthrough explaining what was wrong, why it happened, and how the fix works. You learn from the fix.
→ Regression test on Standard and Advanced tiers — the bug doesn't return.
→ 7-14 day post-delivery support window. If anything regresses due to my fix, I fix it free.
Diagnosis is faster than a junior dev + ChatGPT loop, and the fixes don't break adjacent features.
Stack: Next.js (App Router or Pages), React, Node.js, NestJS, Express, TypeScript, Prisma, TypeORM, PostgreSQL, MongoDB, Stripe, AWS, Docker.
I've shipped 8,700+ hours of production work across enterprise migrations, multi-tenant SaaS, AI-powered apps, and high-volume APIs. I debug Next.js, Node, NestJS, React, and TypeScript apps that real users depend on.
Live work: TPE-ATS BACON (NestJS migration from Clarion legacy), HomeScanr (5-service AWS deployment), SocialApps-Fi (Stripe webhook hardening), TunzaRx (Laravel + Stripe).
What you actually get:
→ Root cause, not symptom fix. I find why the bug happens, not just patch the visible symptom.
→ Clean Git commits. Not "fixed it" blob commits — proper diff-readable changes.
→ Loom walkthrough explaining what was wrong, why it happened, and how the fix works. You learn from the fix.
→ Regression test on Standard and Advanced tiers — the bug doesn't return.
→ 7-14 day post-delivery support window. If anything regresses due to my fix, I fix it free.
Diagnosis is faster than a junior dev + ChatGPT loop, and the fixes don't break adjacent features.
Stack: Next.js (App Router or Pages), React, Node.js, NestJS, Express, TypeScript, Prisma, TypeORM, PostgreSQL, MongoDB, Stripe, AWS, Docker.
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$150
|
Standard
$500
|
Advanced
$1,500
|
|---|---|---|---|
| Delivery Time | 1 day | 3 days | 7 days |
Number of Revisions | 1 | 2 | 3 |
Bug Investigation | |||
Fix Documentation | - | - | - |
Detailed Code Comments | - | - | - |
Frequently asked questions
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HM
Hansel M.
Aug 16, 2022
Website developer for video forwarder
Hasham went out of his way to make sure I was completely satisfied with the website (both on mobile and desktop), he was also able to figure out some bugs that my code had very quickly. He is friendly, speaks English perfectly and his prices are not expensive. I would definitely recommend Hasham for any react work or website development.
HM
Hansel M.
Aug 16, 2022
Website development with web3
Hasham went out of his way to make sure I was completely satisfied with the website (both on mobile and desktop) m, he was also able to figure out some bugs that my code had very quickly. He is friendly, speaks English perfectly and his prices are not expensive. I would definitely recommend Hasham for any react work or website development.
About Muhammad Hasham
AI Agent, RAG, and AI SaaS Engineer - Claude, Next.js, Production
100%
Job Success
Karachi, Pakistan - 9:48 pm local time
8,700+ hours · 100% Job Success · Rising Talent · Available 15-25 hrs/week
I use Claude Code daily on live production work — most "AI developers" can't say that.
WHAT I SHIP:
→ AI Agents
Multi-tool, memory, Claude or OpenAI. Production-deployed with observability + error handling. Real agents that handle real users, not demo scripts.
→ RAG Chatbots
Hybrid retrieval (semantic + keyword), re-ranking, citations, eval harness. Production scale, not 10-PDF demos.
→ AI SaaS MVPs (Code-First)
Hand-built Next.js + NestJS + Stripe + LLM backend. Real codebase you own — not a Lovable/Bolt shell you'll outgrow.
→ Inbound Voice + WhatsApp AI Bots
Vapi, Retell, WhatsApp Cloud API with Meta signature verification. Customer support and appointment booking flows.
→ Senior Production Debug
Next.js, Node, NestJS — root-cause analysis, Loom walkthroughs, regression tests.
LIVE BUILDS:
• HomeScanr (Claude + OpenAI, App Store + Play Store)
• (NestJS migration from Clarion legacy)
• Matchportalen (multi-tenant SaaS, 99.9% uptime)
• ProposalGenie (500+ subscribers, win rates tripled)
• DripMap (10K+ MAU, MVP shipped in 5 weeks)
TECH:
Next.js · NestJS · TypeScript · Claude API · OpenAI · LangChain · LlamaIndex · Pinecone · pgvector · PostgreSQL · AWS · Stripe · Docker
WHAT CLIENTS SAY:
"He does great work and puts in a lot of effort to make sure the results are as good as they can get."
"He fixed the bug blazingly fast, super nice with explanation of what was the bug."
If you need AI integrated into your product, or a SaaS built right the first time — message me.
— Hasham
Karachi (UTC+5), available on US/EU morning calls
Steps for completing your project
After purchasing the project, send requirements so Muhammad Hasham can start the project.
Delivery time starts when Muhammad Hasham receives requirements from you.
Muhammad Hasham works on your project following the steps below.
Revisions may occur after the delivery date.
Step One
Review the bug report, stack trace, and reproduction steps within 4 hours of order
Step Two
Reproduce the bug locally with your repo or provided files