You will get bugs fixed in your web app (React, Python, FastAPI)
Project details
Your app worked yesterday and doesn't today, or a feature has been broken since launch and nobody can find why. I fix bugs for a living: I built and run a production platform (2.1M+ lines across Python, TypeScript, and Dart), so I've debugged everything from API 500s to broken auth flows to React state bugs. I find root causes, not symptoms, and I explain what was wrong in plain language. If I can't reproduce your bug, I'll tell you instead of guessing.
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included
| Service Tiers |
Starter
$60
|
Standard
$150
|
Advanced
$300
|
|---|---|---|---|
| Delivery Time | 2 days | 4 days | 7 days |
Number of Revisions | 1 | 2 | 2 |
Bug Investigation | |||
Fix Documentation | |||
Detailed Code Comments | - |
Optional add-ons
You can add these on the next page.
Priority Start
+$75About Omar
Full-Stack Developer | AI Integration | Apps Live on Both App Stores
Norridge, United States - 2:00 am local time
I specialize in React, Python/FastAPI, PostgreSQL, Redis, backend APIs, authentication, Flutter mobile apps, real-time chat, admin dashboards, analytics, AI features, and deployment.
The platform is WeLynk, live on the App Store, Google Play, and web (search "WeLynk" on either store): authentication, chat, presence, media sharing, matching, games, admin analytics, moderation tools, payments, and production deployment. 2.1M+ lines of code across Python, TypeScript, Dart, and Rust.
I'm best for projects where you need someone who can jump into an existing codebase, understand the problem quickly, and ship a clean working fix or feature without endless hand-holding.
Common projects I can help with:
- Fixing bugs in React, Python, FastAPI, or full-stack apps
- Fixing slow or janky Flutter apps (profiling, GPU issues, frame drops)
- Building backend APIs and database logic
- Building real-time chat, presence, notifications, or matching systems
- Creating admin dashboards and internal tools
- Adding authentication, user accounts, and permissions
- Adding payments, subscriptions, or virtual currency
- Adding analytics, referral tracking, or admin visibility
- Adding AI features or integrations to an existing product
If your app is broken, delayed, or missing an important feature, I can help you get it shipped.
Steps for completing your project
After purchasing the project, send requirements so Omar can start the project.
Delivery time starts when Omar receives requirements from you.
Omar works on your project following the steps below.
Revisions may occur after the delivery date.
Reproduce
I trace it to the actual cause, not the symptom, whether it's backend, frontend, or between them.
Root cause
I fix it, test around it so the fix doesn't break something else, and keep changes minimal.