You will get expert React Nextjs bug fixes and optimized PageSpeed performance
Project details
Is your React or Next.js website slow, broken, or throwing console errors? I can fix it today.
I am a Software Engineer specializing in Next.js performance tuning and web debugging. I will clean up your codebase, resolve styling issues, integrate external APIs, and optimize your page speeds to achieve a 90+ Lighthouse score.
🔧 What I Can Do For You:
• Fix React & JavaScript Bugs: Resolve layout, state management, or component errors.
• API Integration: Connect Stripe, Firebase, SendGrid, or custom REST/GraphQL endpoints.
• Speed Optimization: Optimize bundle sizes, lazy load images, and clean up Next.js files.
• Custom CSS/Tailwind Fixes: Resolve layout responsiveness and mobile display issues.
🌟 Why Work With Me?
• Fast response times and emergency debugging.
• 90+ PageSpeed & Lighthouse performance target.
• Well-documented code adjustments.
Let's get your website working perfectly! (Please contact me first to describe your bug or share your PageSpeed report before ordering.)
I am a Software Engineer specializing in Next.js performance tuning and web debugging. I will clean up your codebase, resolve styling issues, integrate external APIs, and optimize your page speeds to achieve a 90+ Lighthouse score.
🔧 What I Can Do For You:
• Fix React & JavaScript Bugs: Resolve layout, state management, or component errors.
• API Integration: Connect Stripe, Firebase, SendGrid, or custom REST/GraphQL endpoints.
• Speed Optimization: Optimize bundle sizes, lazy load images, and clean up Next.js files.
• Custom CSS/Tailwind Fixes: Resolve layout responsiveness and mobile display issues.
🌟 Why Work With Me?
• Fast response times and emergency debugging.
• 90+ PageSpeed & Lighthouse performance target.
• Well-documented code adjustments.
Let's get your website working perfectly! (Please contact me first to describe your bug or share your PageSpeed report before ordering.)
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, PSD to HTML, Performance OptimizationWhat's included
| Service Tiers |
Starter
$80
|
Standard
$150
|
Advanced
$280
|
|---|---|---|---|
| Delivery Time | 1 day | 2 days | 3 days |
Number of Revisions | 3 | 5 | Unlimited |
Bug Investigation | |||
Fix Documentation | - | ||
Detailed Code Comments |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$30 - $50
Additional Revision
+$15
Fix Documentation
(+ 2 Days)
+$15Frequently asked questions
About Wasiur
Full-Stack Software Engineer | React, NextJS & FastAPI Developer
Town Sripur, Bangladesh - 3:03 pm local time
I am a Full-Stack Software Engineer and active Software Engineer Intern at Techdojo. I specialize in building fast, secure, and highly optimized web applications using React, NextJS, TypeScript, Tailwind CSS, NodeJS, and FastAPI. My focus is writing pixel-perfect frontend layouts and building robust backend systems that scale smoothly.
💻 Core Services I Provide:
1. 📐 Figma to React / NextJS Conversion
- Converting static design files (Figma, Adobe XD, Sketch, PSD) into interactive, clean code.
- Fully responsive, mobile-first design implementation using Tailwind CSS.
- Semantic HTML markup structure for SEO optimization.
- Interactive animations and UI transitions using Framer Motion.
2. 🔧 React Debugging, API Integration & Speed Optimization
- Debugging complex component rendering, state management glitches, and console errors.
- Integrating external RESTful and GraphQL APIs (Stripe, SendGrid, Firebase, auth gates).
- Performance tuning: lazy loading assets, optimizing image bundles, and achieving a 90+ Lighthouse/PageSpeed score.
3. 🤖 AI & OpenAI API integrations
- Connecting Large Language Models (LLMs) like OpenAI's GPT-4, Claude, and Gemini.
- Building custom conversational AI chatbots with system prompts and chat memory.
- Automating text summarization, data extraction, and content generation pipelines.
4. 💻 Full-Stack SaaS MVP Development
- Building secure, production-ready full-stack applications from scratch.
- Backend routing and controllers using Express and NodeJS or FastAPI and Python.
- Integrating databases (MongoDB, PostgreSQL, Firebase) with secure CRUD operations.
- User authentication implementations (JWT, bcrypt password hashing, session tokens).
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🛠️ My Technical Stack:
- Frontend: NextJS, ReactJS, TypeScript, JavaScript (ES6+), HTML5, CSS3
- Styling & Layouts: Tailwind CSS, CSS Modules, Responsive Flexbox/Grid
- Animations: Framer Motion, Spline (3D), HTML Canvas
- Backend: NodeJS, Express, FastAPI, Python
- Database: MongoDB, Firebase, PostgreSQL
- Real-Time & Web3: WebSockets (SocketIO), @solana/web3js, Wallet Adapter APIs
- Version Control & Deployment: Git, GitHub, Vercel, Netlify, Render, Railway
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🌟 Select Projects & Experience:
• NeuroLink: A comprehensive mental health tracker featuring interactive data dashboards, circular progress metrics, and live chat logs. Built using React and styled with clean Tailwind layouts.
• trustfund-core: A Web3 DeFi yield optimizer displaying transaction tables, wallet-connect states, and real-time smart contract data pipelines.
• LifeOS Household: A full-stack IoT dashboard managing smart switches, system status indicators, database-connected panels, and secure user logins.
• Techdojo AI Bot: A custom chatbot widget utilizing system prompts and conversation scripts to automate client inquiries.
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💼 My Work Philosophy:
- Clean & Modular Code: I write components that are reusable, easy to read, and easy for other teams to maintain.
- Security-First: I ensure that all API keys, database credentials, and user passwords are encrypted and hidden in environment variables.
- Direct Communication: I keep my clients updated through regular milestone reports and quick feedback loops.
Let's discuss how we can bring your next web application or frontend project to life. Click "Invite to Job" or send me a message to get started!
Steps for completing your project
After purchasing the project, send requirements so Wasiur can start the project.
Delivery time starts when Wasiur receives requirements from you.
Wasiur works on your project following the steps below.
Revisions may occur after the delivery date.
Bug Replication
I will replicate the bug locally and run diagnostics on your codebase or run a full PageSpeed audit.
QA & Delivery
I will verify responsiveness, double-check your Lighthouse scores, and deliver the updated code repository.