RF

Hi, I'm Rezuanul Islam Fahim

Software EngineerBuilding Scalable Web & Mobile Solutions

I'm a Software Engineer with 6+ years of experience building high-performance web & mobile apps using Flutter, React, Node.js, and Firebase. From slick mobile UIs to robust backends — I deliver scalable, user-centric solutions that just work.

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Years Experience

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Projects Completed

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Happy Clients

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Support Available

About Me

Passionate about creating exceptional digital experiences through clean code and innovative solutions

Crafting Digital Solutions with Precision & Passion

I'm a Software Engineer with 6+ years of experience building high-performance web & mobile apps using Flutter, React, Node.js, and Firebase. From slick mobile UIs to robust backends — I deliver scalable, user-centric solutions that just work.

6+ Years of hands-on experience
100+ successful projects delivered
50+ satisfied clients worldwide

Professional Developer

Building the Future

What I Do Best

📱

Mobile App Development

Cross-platform mobile apps using Flutter for Android and iOS with native performance and modern UI.

  • Native Android & iOS performance
  • Material Design & Cupertino widgets
  • Real-time features integration
  • App Store & Play Store deployment
🌐

Web Development

Modern web applications using React.js, Next.js with responsive design and optimal performance.

  • React.js & Next.js applications
  • Responsive & mobile-first design
  • SEO optimization
  • Performance optimization

Backend Development

Scalable backend APIs using Node.js, Express, and Firebase with secure authentication and databases.

  • RESTful API development
  • Database design & optimization
  • Authentication & authorization
  • Cloud functions & serverless
🎨

UI/UX Implementation

Pixel-perfect implementation of designs from Figma, Adobe XD with modern animations and interactions.

  • Figma to code conversion
  • Modern animations & transitions
  • Cross-browser compatibility
  • Design system implementation

Skills & Expertise

A comprehensive toolkit for building modern, scalable applications

🎨

Frontend Development

⚛️React.js
95%
🔥Next.js
92%
📘TypeScript
90%
🎨Tailwind CSS
95%
💛JavaScript
95%
🌐HTML/CSS
98%
📱

Mobile Development

📱Flutter
98%
🎯Dart
95%
🤖Android
90%
🍎iOS
88%

Backend Development

🟢Node.js
92%
Express.js
90%
🔥Firebase
95%
🍃MongoDB
88%
🐘PostgreSQL
85%
🔌REST APIs
95%
🛠️

Tools & Technologies

🐱Git/GitHub
95%
💻VS Code
98%
🎨Figma
85%
📮Postman
90%
Vercel
92%
🔥Firebase Console
95%
🚀Always learning and adapting to new technologies

Featured Projects

A showcase of my recent work and creative solutions

E-Commerce Mobile App
Featured

E-Commerce Mobile App

Full-featured e-commerce app built with Flutter and Firebase, including real-time inventory, payment integration, and admin dashboard.

FlutterFirebaseStripeNode.js
Real-time Chat Application
Featured

Real-time Chat Application

Scalable chat application with React.js frontend and Node.js backend, featuring real-time messaging, file sharing, and group chats.

React.jsNode.jsSocket.ioMongoDB
Task Management SaaS
Featured

Task Management SaaS

Comprehensive project management tool with team collaboration features, built using Next.js and Firebase.

Next.jsTypeScriptFirebaseTailwind CSS
Food Delivery App Clone

Food Delivery App Clone

Complete food delivery solution with customer, restaurant, and delivery partner apps built with Flutter.

FlutterFirebaseGoogle MapsPayment Gateway
Learning Management System

Learning Management System

Educational platform with course management, video streaming, and progress tracking features.

React.jsNode.jsMongoDBAWS S3
Social Media Dashboard

Social Media Dashboard

Analytics dashboard for social media management with data visualization and scheduling features.

Next.jsTypeScriptChart.jsREST APIs

Technologies I Work With

FlutterFirebaseStripeNode.jsReact.jsSocket.ioMongoDBNext.jsTypeScriptTailwind CSSGoogle MapsPayment GatewayAWS S3Chart.jsREST APIs

Education & Experience

My academic background and professional journey

Education

Bachelor of Science in Computer Science

University of Engineering & Technology
Dhaka, Bangladesh
2014 - 2018

Graduated with distinction. Specialized in Software Engineering and Database Systems.

GPA: 3.75/4.00

Higher Secondary Certificate (HSC)

Dhaka College
Dhaka, Bangladesh
2012 - 2014

Science group with Mathematics, Physics, and Chemistry.

GPA: 5.00/5.00

💼 Work Experience

Senior Software Engineer

Freelancer
Remote
2020 - Present
  • Developed 50+ high-quality mobile and web applications using Flutter, React.js, and Node.js
  • Successfully deployed applications to Google Play Store and Apple App Store with 4.8+ average ratings
  • Implemented real-time features including chat systems, live tracking, and notifications
  • Built scalable backends with Node.js, Express, and Firebase with proper authentication and security
  • Collaborated with international clients to deliver pixel-perfect UI from Figma/Adobe XD designs
FlutterReact.jsNode.jsFirebaseMongoDB

Mobile App Developer

Tech Solutions Inc.
Dhaka, Bangladesh
2019 - 2020
  • Developed cross-platform mobile applications using Flutter framework
  • Integrated various third-party APIs and payment gateways
  • Worked closely with UI/UX designers to implement modern material design
  • Maintained and optimized existing applications for better performance
FlutterDartFirebaseREST APIs

Junior Software Developer

StartupXYZ
Dhaka, Bangladesh
2018 - 2019
  • Started career as a junior developer working on web applications
  • Learned modern JavaScript frameworks and backend technologies
  • Participated in agile development processes and code reviews
  • Contributed to open-source projects and internal tools
JavaScriptReact.jsExpress.jsMySQL

🏆 Certifications

Google Cloud Professional Developer

Google Cloud
2023
ID: GCP-DEV-2023

AWS Certified Developer Associate

Amazon Web Services
2023
ID: AWS-DEV-2023

Firebase Certified Developer

Google
2022
ID: FB-DEV-2022
🎯

Continuous Learning

Always staying updated with the latest technologies and best practices

Available for Hire

Ready to Work Together?

Hire me directly on Upwork for your next project. Top-rated freelancer with proven track record.

U

Rezuanul Islam Fahim

Senior Software Engineer • Top Rated Freelancer

5.0(25+ reviews)
📈
95%
Job Success Score
💰
$50K+
Total Earnings
2000+
Hours Worked
👥
50+
Clients Served
Hire Me on Upwork

Services I Offer on Upwork

Flutter Mobile App Development
React.js Web Development
Node.js Backend Development
Firebase Integration
UI/UX Implementation
API Development & Integration

What Clients Say

"Exceptional work quality and communication. Delivered the Flutter app exactly as specified with clean, maintainable code."

— Sarah M., Startup Founder

"Great developer! Built our React.js dashboard with excellent attention to detail. Highly recommend for complex projects."

— Michael T., CTO

Let's Work Together

Ready to bring your ideas to life? Get in touch and let's discuss your next project.

Get In Touch

I'm always excited to work on new projects and collaborate with amazing people. Whether you need a mobile app, web application, or backend solution, I'm here to help turn your vision into reality.

Connect with me

Available for new projects

Currently accepting new freelance projects and collaborations

Response Time: I typically respond within 24 hours. For urgent projects, feel free to reach out directly via email or phone.