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I will fix node js bugs API errors and database performance
Nabil Elhady
About this gig
There's always a specific reason an API is slow, a background job keeps crashing, or a database is melting under load. I find it and fix it properlynot with a temporary patch that breaks something else in three weeks.
I specialize in:
- Node.js / Next.js / Express bug fixes
- Slow database queries (PostgreSQL, MySQL, MongoDB)
- Crashing background jobs (BullMQ, Redis queues)
- API errors, 401s, CORS issues, broken auth flows
- Memory leaks and server timeouts
Real example: A production database query taking 800msdiagnosed, restructured, and dropped to 120ms. Same hardware. No infrastructure changes.
Send me your error logs, your repo link, or just describe what's broken. I will tell you within a few hours if I can fix it and exactly how long it will take.
Top-Rated Freelance Architect · 100% Client Satisfaction · Same-day responses
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Get to know Nabil Elhady
Nabil Elhady
Full stack developer using React, Node and AWS for SaaS products
- FromEgypt
- Member sinceFeb 2020
Languages
English, Arabic
I'm a Top-Rated Back-End Architect specializing in Node.js, Next.js, and AWS Serverless. I build robust SaaS platforms designed for real traffic.
I've scaled systems handling 10,000+ daily requests, cut DB query times from 800ms to 120ms, and built complex Stripe & OAuth flows.
Stack: Node.js, Next.js (App Router), TypeScript, AWS, PostgreSQL, MongoDB, Redis.
If your backend is crashing under load, or you need a secure, scalable MVP built right the first time, let's talk.
My Portfolio
FAQ
Do I need to message you before placing an order?
Yes, please send me a quick message first! I need to review your error logs or repository to confirm the exact issue and make sure I can fix it within the timeframe.
What if the bug requires a complete rewrite of my API?
If the issue requires a massive architectural overhaul rather than a standard bug fix, I will inform you immediately during our initial chat and provide a custom quote for the refactoring.
What databases do you work with for query optimization?
I specialize in PostgreSQL, MySQL, and MongoDB. I can help with indexing, complex relational queries, and raw SQL optimization.
What do you need from me to start?
Depending on the issue, I will usually need access to your source code (via a GitHub/GitLab invite), relevant error logs, and occasionally staging database access.
