You will get MERN Stack Bug Fix & Full Stack Issue | React, Next.js, Node, MongoDB
Project details
If your MERN app is breaking, slowing down, or blocking releases, I fix the root cause fast. This Upwork Project Catalog service is built for founders and developers who need reliable React, Next.js, Node.js, Express, or MongoDB issue resolution without long onboarding.
🚀 Deliverables
➯ Bug investigation report with root cause
➯ Code fixes and corrections
➯ Optimized, commented code
➯ Testing and verification
➯ Fix documentation
➯ Optional performance or security improvements
➯ Source code delivery and deployment support
➯ Scope is limited to defined issues per tier.
🎨 Industries served
➯ SaaS, startups, e-commerce, fintech, healthtech, edtech, real estate, logistics, media, social platforms, tech tools
🔥 Why choose me
➯ 5 years full stack MERN experienc
➯ Faster diagnosis and fix turnaround
➯ Clean, maintainable, scalable code
➯ Single point of ownership
➯ Clear communication and transparency
➯ Real-world MERN best practices
💬 Send your issue details or repo link. I will review and confirm scope before you order.
🚀 Deliverables
➯ Bug investigation report with root cause
➯ Code fixes and corrections
➯ Optimized, commented code
➯ Testing and verification
➯ Fix documentation
➯ Optional performance or security improvements
➯ Source code delivery and deployment support
➯ Scope is limited to defined issues per tier.
🎨 Industries served
➯ SaaS, startups, e-commerce, fintech, healthtech, edtech, real estate, logistics, media, social platforms, tech tools
🔥 Why choose me
➯ 5 years full stack MERN experienc
➯ Faster diagnosis and fix turnaround
➯ Clean, maintainable, scalable code
➯ Single point of ownership
➯ Clear communication and transparency
➯ Real-world MERN best practices
💬 Send your issue details or repo link. I will review and confirm scope before you order.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$30
|
Standard
$80
|
Advanced
$200
|
|---|---|---|---|
| Delivery Time | 3 days | 7 days | 10 days |
Number of Revisions | 2 | 5 | 8 |
Number of Pages | 2 | 4 | 6 |
Design Customization | - | - | |
Content Upload | - | - | - |
Responsive Design | - | ||
Source Code | - | - |
Optional add-ons
You can add these on the next page.
Additional Revision
+$10
Additional Page
(+ 3 Days)
+$30
Design Customization
(+ 2 Days)
+$20
Content Upload
(+ 1 Day)
+$10
Responsive Design
(+ 2 Days)
+$20Frequently asked questions
About Shakhawat
Full Stack Developer | React, Node.js, Next.js | MERN & Modern Web App
Chittagong, Bangladesh - 3:38 am local time
SKILLS & EXPERIENCE
I specialize in modern web technologies and full-stack development, working across frontend, backend, and deployment workflows.
SERVICES I PROVIDE (SEO-OPTIMIZED)
🚀 FULL STACK WEB APPLICATION DEVELOPMENT
➯ As a Full Stack Developer, I build secure, scalable, and high-performance web applications using modern technologies.
➯ Full Stack Web Development (React, Next.js, Node.js, Django)
➯ MERN Stack & PostgreSQL-based applications
➯ Scalable architecture for SaaS platforms & startups
➯ Secure authentication, authorization & role-based access
➯ End-to-end project delivery from planning to deployment
🎨 FRONTEND DEVELOPMENT (REACT / NEXT.JS DEVELOPER)
➯ I specialize in building fast, responsive, and conversion-focused user interfaces.
➯ React.js & Next.js (App Router, SSR, SEO-friendly)
➯ TypeScript, Tailwind CSS, Shadcn/UI
➯ Pixel-perfect UI from Figma or design mockups
➯ Responsive design (mobile, tablet, desktop)
➯ Web performance optimization & Core Web Vitals
➯ Smooth animations using GSAP & Framer Motion
⚙️ BACKEND DEVELOPMENT & API ENGINEERING (NODE.JS / DJANGO)
➯ Reliable backend systems built for growth and maintainability.
➯ Node.js & Express.js backend development
➯ Django & Django REST Framework
➯ RESTful API development & third-party API integration
➯ API documentation with Swagger
➯ Async processing & performance optimization
🗄️ DATABASE DESIGN & MANAGEMENT
➯ Efficient, secure, and scalable data solutions.
➯ MongoDB & Mongoose
➯ PostgreSQL with Prisma
➯ Database schema design & optimization
➯ Data validation & secure handling
🧪 TESTING, CI/CD & DEVOPS
➯ Clean, tested code with modern DevOps workflows.
➯ Unit & integration testing using Vitest
➯ Dockerized applications
➯ CI/CD pipelines using GitHub Actions
➯ GitHub version control & collaborative workflows
➯ Deployment support (Vercel & cloud-ready setups)
📈 SAAS, STARTUP & BUSINESS SOLUTIONS
➯ I help companies build, launch, and scale digital products.
➯ SaaS dashboards & admin panels
➯ MVP & startup product development
➯ ERP & CRM systems
➯ Marketing websites & high-converting landing pages
➯ e-commerce platforms & custom business tools
🤖 MODERN & API-DRIVEN INTEGRATIONS
➯ Future-ready development aligned with evolving business needs.
➯ API-first architecture
➯ AI-ready & data-driven integrations
➯ Scalable systems prepared for future enhancements
🤝 COLLABORATION, COMMUNICATION & SUPPORT
➯ More than a freelancer works as your technical partner.
➯ Clear, friendly, and proactive communication
➯ Agile & result-oriented development
➯ Regular updates & transparent reporting
➯ After-launch support & long-term maintenance
If you’d like to discuss your project in detail, let’s schedule a call. I’m happy to spend time understanding your idea, even if we don’t end up working together.
📩 SEND ME A MESSAGE, AND LET’S BUILD SOMETHING GREAT.
Steps for completing your project
After purchasing the project, send requirements so Shakhawat can start the project.
Delivery time starts when Shakhawat receives requirements from you.
Shakhawat works on your project following the steps below.
Revisions may occur after the delivery date.
Client shares requirements and repo access
➯ Provide detailed description of issues, error logs, and code repository access. ➯ Specify the environment (development/production) and expected outcomes.
Initial assessment and bug investigation
Review the code and reproduce the issues. Create a brief Bug Investigation Report outlining root causes.