You will get a full-stack web app bug fix in React and Next.js
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Project details
Is your React, Next.js, Vue, or Angular web app crashing, throwing errors, or broken after a deployment? I will fix it fast, clean, tested, full-stack code every time.
I am a full-stack web developer specializing in bug fixing, error resolution, and ongoing maintenance for web apps built in React, Next.js, Vue.js, and Angular — with complete backend support in Node.js, REST APIs, Supabase, and databases.
🔧 WHAT I FIX:
✔ React / Next.js / Vue / Angular bugs & errors
✔ JavaScript & TypeScript runtime errors
✔ API, REST, GraphQL & database query failures
✔ Auth issues — JWT, OAuth & session bugs
✔ SSR, hydration & Vercel deployment errors
✔ Supabase, Firebase & third-party integration bugs
✔ Performance, CORS & cross-browser issues
✔ Environment variable & configuration errors
✔ Speed optimization
✔ Cloud cost optimisation
✔ Analytics crash monitoring, and fixes
💼 WHY HIRE ME:
✔ Full-stack — frontend AND backend covered
✔ Bug investigation report on every delivery
✔ Full source code + documentation always included
✔ NDA available on request
✔ Fast delivery — urgent turnaround available
I am a full-stack web developer specializing in bug fixing, error resolution, and ongoing maintenance for web apps built in React, Next.js, Vue.js, and Angular — with complete backend support in Node.js, REST APIs, Supabase, and databases.
🔧 WHAT I FIX:
✔ React / Next.js / Vue / Angular bugs & errors
✔ JavaScript & TypeScript runtime errors
✔ API, REST, GraphQL & database query failures
✔ Auth issues — JWT, OAuth & session bugs
✔ SSR, hydration & Vercel deployment errors
✔ Supabase, Firebase & third-party integration bugs
✔ Performance, CORS & cross-browser issues
✔ Environment variable & configuration errors
✔ Speed optimization
✔ Cloud cost optimisation
✔ Analytics crash monitoring, and fixes
💼 WHY HIRE ME:
✔ Full-stack — frontend AND backend covered
✔ Bug investigation report on every delivery
✔ Full source code + documentation always included
✔ NDA available on request
✔ Fast delivery — urgent turnaround available
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$500
|
Standard
$750
|
Advanced
$1,000
|
|---|---|---|---|
| Delivery Time | 7 days | 20 days | 30 days |
Number of Revisions | Unlimited | Unlimited | Unlimited |
Bug Investigation | |||
Fix Documentation | - | - | - |
Detailed Code Comments | - | - | - |
Frequently asked questions
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About M Zubair
Mobile App Developer | Flutter | Flutterflow | React Native
97%
Job Success
Lahore, Pakistan - 6:33 pm local time
I can
- Build apps from scratch. 100% custom, using flutter, react native, and swift.
- Build native and cross-platform apps.
- Build with BaaS like Firebase, AWS, or build custom backend solutions from scratch.
- Build AI image, AI video, AI agent, AI orchestration, and business based AI solutions.
- Audit existing mobile apps for performance, security, optimization, compliance and conversion issues.
- Take over older codebases and apps from previous developers without knowledge transfer.
- Take over full maintenance of mobile apps at a fixed retainer per month.
Steps for completing your project
After purchasing the project, send requirements so M Zubair can start the project.
Delivery time starts when M Zubair receives requirements from you.
M Zubair works on your project following the steps below.
Revisions may occur after the delivery date.
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