You will get expert bug fixing and performance optimization for your web application
Project details
Experiencing broken layouts, API errors, authentication issues, or performance slowdowns? I diagnose and resolve bugs across modern web stacks quickly and cleanly.
I deliver precise debugging, refactoring, and performance patches so your application runs smoothly without introducing new regressions.
What I Can Fix & Optimize:
• Frontend Issues: React.js, Next.js, TypeScript, Tailwind CSS, responsive UI bugs
• Backend & API Errors: Node.js, Express, Python, Django, REST API failures
• Database & Auth: PostgreSQL, MySQL, MongoDB queries, JWT, OAuth authentication issues
• Performance & Speed: Slow load times, memory leaks, high latency fixes
• Deployment & Config: Build errors, environment variables, server misconfigurations
Why Choose Me?
✔ Rapid root-cause diagnosis and clean code patches
✔ Full fix documentation with commented code
✔ Zero downtime & post-fix verification
Send me your error details, codebase access, or reproduction steps to get started!
I deliver precise debugging, refactoring, and performance patches so your application runs smoothly without introducing new regressions.
What I Can Fix & Optimize:
• Frontend Issues: React.js, Next.js, TypeScript, Tailwind CSS, responsive UI bugs
• Backend & API Errors: Node.js, Express, Python, Django, REST API failures
• Database & Auth: PostgreSQL, MySQL, MongoDB queries, JWT, OAuth authentication issues
• Performance & Speed: Slow load times, memory leaks, high latency fixes
• Deployment & Config: Build errors, environment variables, server misconfigurations
Why Choose Me?
✔ Rapid root-cause diagnosis and clean code patches
✔ Full fix documentation with commented code
✔ Zero downtime & post-fix verification
Send me your error details, codebase access, or reproduction steps to get started!
Programming Languages
JavaScript, Python, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$80
|
Standard
$250
|
Advanced
$550
|
|---|---|---|---|
| Delivery Time | 1 day | 3 days | 7 days |
Number of Revisions | 1 | 2 | 4 |
Bug Investigation | |||
Fix Documentation | - | ||
Detailed Code Comments | - | - |
Frequently asked questions
About Md
Full-Stack & Mobile App Developer | MERN, Next.js & React Native
Lakshmipur, Bangladesh - 5:49 am local time
Whether you need an MVP built quickly, third-party API integrations, or database optimization, I deliver clean, maintainable code on time and within scope.
WHAT I CAN BUILD & DELIVER:
• Full-Stack Web Apps & SaaS: End-to-end web applications with modern UI and secure backends
• Cross-Platform Mobile Apps: High-performance iOS and Android applications using React Native
• Backend & API Development: Custom REST APIs, microservices, and database architecture
• Dashboards & Portals: Intuitive admin panels, analytics dashboards, and CRM integrations
• Performance & Refactoring: Code audits, bug fixes, database query optimization, and speed improvements
CORE TECH STACK:
• Frontend: React.js, Next.js, React Native, JavaScript (ES6+), TailwindCSS
• Backend: Node.js, Express, Python, Django, REST APIs
• Databases: PostgreSQL, MySQL, MongoDB
• DevOps & Cloud: AWS, Docker, Git, CI/CD pipelines
WHY WORK WITH ME?
✔ Clear, proactive communication & regular milestone updates
✔ Clean, documented code that your future team can easily maintain
✔ Direct focus on business value, user experience, and long-term scalability
I’m committed to delivering reliable, high-quality solutions that help businesses grow and operate more efficiently.
Let’s build something impactful together.
Steps for completing your project
After purchasing the project, send requirements so Md can start the project.
Delivery time starts when Md receives requirements from you.
Md works on your project following the steps below.
Revisions may occur after the delivery date.
Bug Reproduction & Diagnosis
I review your error logs, reproduce the issue in an isolated environment, and identify the root cause.
Code Patch & Refactoring
I implement clean, modular code fixes without breaking existing application dependencies.