I will fix bugs errors and broken features in frontend backend full stack


Level 2
Gig Summary
About this gig
Broken build? A 500 error you cannot trace? A feature that worked yesterday and not today? I fix it, fast, at the root, without breaking the rest of your app.
I am a senior engineer with 500+ orders, 100% satisfaction and 8,700+ hours on production apps. I debug React, Next.js, Node, Express, TypeScript and Python across frontend, backend and full stack. Not a band-aid that breaks next week: I find the root cause, fix it cleanly, and explain in plain English what was wrong.
What you get:
- Root-cause fix, not a symptom patch
- Clean commit or patch on your repo, so you own everything
- A Loom walkthrough (Standard and Premium) so you understand the fix
- A regression check (Standard and Premium) so nothing else breaks
Recently: fixed a production 500 error and installed Sentry cleanly for a US client (see reviews). I work fast and I am honest. If I cannot reproduce it, you do not pay.
Not sure which package fits? Send me what you have and I will honestly tell you which tier you actually need.
Get to know Hasham Vakani
AI agents, RAG, automation and MCP, production builds not demos
Level 2
- FromPakistan
- Member sinceAug 2020
- Avg. response time1 hour
- Last delivery2 weeks
Languages
English, Spanish, French
My Portfolio
Other Software Development Services I Offer
FAQ
How fast can you start?
Usually within 4–12 hours of ordering, as long as the repo or a code snippet is accessible. Premium orders get priority same-day attention. The faster you share the error and repo access, the faster I can reproduce and start fixing — most bugs I diagnose the same day I get access.
What if you can't reproduce the bug?
I always investigate first before charging. If I genuinely can't reproduce or diagnose the issue after a real attempt, I refund you in full — I only take payment when I can actually fix it. In practice this is rare: with repo access and clear reproduction steps, I reproduce almost everything.
Do I own the code?
Always, 100%. I push clean commits directly to your GitHub, or send you a patch file — your repo, your ownership, no lock-in and nothing hidden. You can review every line I change before merging.
Can you fix multiple unrelated bugs?
Standard covers up to 3 related bugs in one order. If you've got many unrelated bugs across different modules, message me first — I'll scope it honestly and send a custom offer so you're not overpaying or underscoping. I'd rather quote it right than surprise you.
Do you write tests?
Standard and Premium include a regression check on the affected flow, so the fix doesn't quietly break something else. On Premium I can add targeted tests around the fixed code if you want a longer-term safety net — just ask and I'll include it in scope.
154 reviews for this Gig
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
S 
skyfire111

Germany
Ongoing collaborationHasham hat meine Photoshop-Plugins wieder zum Laufen gebracht und mir damit unglaublich viel Arbeit erspart. Er war äußerst kompetent, geduldig und hat sich viel Zeit genommen, bis alles einwandfrei funktioniert hat. Ich bin mit seiner Unterstützung sehr zufrieden und kann ihn uneingeschränkt weiterempfehlen....
$50-$100
Price
1 day
Duration
H 
Seller's Response
Helpful?S 
skyfire111

Germany
Ongoing collaborationHasham hat mein Problem schnell und professionell gelöst.
$200-$400
Price
1 day
Duration
H 
Seller's Response
Helpful?M mobipay

United States
Ongoing collaborationExpert help in a pinch.
$200-$400
Price
4 days
Duration
Helpful?J junjjalo

United States
Hasham delivered both items from the original order — fixed the /api/admin/logs 500 error and installed the Sentry SDK cleanly. When his first deploy surfaced a separate pre-existing issue with our production database, he investigated quickly, owned the gap in his local testing approach, and walked me...
$100-$200
Price
2 days
Duration
Helpful?V vanessakrantz

France
the best !!! thanks for all
$100-$200
Price
1 day
Duration
H 
Seller's Response
Helpful?
154 reviews for this Gig
| (152) | ||
| (2) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
S 
skyfire111

Germany
Ongoing collaborationHasham hat meine Photoshop-Plugins wieder zum Laufen gebracht und mir damit unglaublich viel Arbeit erspart. Er war äußerst kompetent, geduldig und hat sich viel Zeit genommen, bis alles einwandfrei funktioniert hat. Ich bin mit seiner Unterstützung sehr zufrieden und kann ihn uneingeschränkt weiterempfehlen....
$50-$100
Price
1 day
Duration
H 
Seller's Response
Helpful?S 
skyfire111

Germany
Ongoing collaborationHasham hat mein Problem schnell und professionell gelöst.
$200-$400
Price
1 day
Duration
H 
Seller's Response
Helpful?M mobipay

United States
Ongoing collaborationExpert help in a pinch.
$200-$400
Price
4 days
Duration
Helpful?J junjjalo

United States
Hasham delivered both items from the original order — fixed the /api/admin/logs 500 error and installed the Sentry SDK cleanly. When his first deploy surfaced a separate pre-existing issue with our production database, he investigated quickly, owned the gap in his local testing approach, and walked me...
$100-$200
Price
2 days
Duration
Helpful?V vanessakrantz

France
the best !!! thanks for all
$100-$200
Price
1 day
Duration
H 
Seller's Response
Helpful?

