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I will fix and optimize your react, nodejs, mysql or php app performance
Zaid I
Level 1
About this gig
Is your app slow, your API lagging or your database crawling? You are in the right place.
I fix and optimize real performance problems in production apps not surface-level tweaks that don't last.
See Portfolio: https://techdone.dev
WHAT I FIX AND OPTIMIZE
- React: Unnecessary re-renders, lazy loading, bundle size, Core Web Vitals
- Node.js: Slow APIs, memory leaks, event loop blocking, bottlenecks
- MySQL: Slow queries, missing indexes, N+1 problems, query restructuring
- PHP/Laravel: Slow response times, inefficient queries, caching issues
HOW I WORK
I profile your app first to find the actual bottleneck not guessing. Then I fix the root cause and show you measurable before and after results.
TECH STACK
React · Node.js · MySQL · PostgreSQL · PHP · Laravel · Redis
Message me with your issue and I will tell you exactly what can be improved.
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Get to know Zaid I
Zaid I
AI Developer, WebRTC and Real Time, Full Stack Developer
Level 1
- FromPakistan
- Member sinceDec 2025
- Avg. response time1 hour
- Last delivery2 weeks
Languages
Urdu, English
Full Stack Developer with 10+ years of experience building scalable web, WebRTC, and real-time systems, with strong expertise in AI solutions.
I build AI chatbots and assistants trained on your data (documents, knowledge bases, internal tools) to deliver accurate, reliable answers instead of generic responses.
I help with customer support automation, internal knowledge assistants, SaaS AI features, and real-time apps (WebRTC, Node.js, React).
I focus on grounding AI in your data to reduce hallucinations and ensure practical results.
My Portfolio
FAQ
Do you work with existing production apps
Yes. I specialize in fixing real apps already in production — not greenfield projects only.
Can you optimize just one part of my app?
Yes. The Basic package focuses on one specific issue. You do not need to share the entire codebase for smaller fixes.
What if the issue is more complex than expected?
I will always tell you before starting if the scope exceeds your chosen package. No surprises.
Will you show before and after results?
Yes. I provide measurable comparisons such as query time, API response time or Lighthouse scores before and after fixes.
What do you need from me to get started?
Access to your codebase or repository, database structure and a description of where you notice the slowdown. I will take it from there.
How do I know if my app needs optimization?
Common signs are slow page loads, high server response times, database timeouts, memory spikes or poor Lighthouse and PageSpeed scores.
Which databases do you support?
MySQL, PostgreSQL and MariaDB. I can also help with Redis caching to reduce database load significantly
