I am a passionate software engineer, a Top-Rated Upwork Freelancer, and an advocate for clean, scalable code. With over 8 years of hands-on experience building performant applications for clients globally, I specialize in taking ideas from concept to production.
Currently, I am pursuing my BSc in Computer Science and Engineering at AIUB. While I work extensively across the full stack using React, Next.js, and Node.js, my primary focus and absolute core stack is Flutter. I specialize in building robust, offline-first mobile applications that provide seamless user experiences regardless of network connectivity.
🌐 Portfolio: rezuanulislamfahim.me
- 🔭 Currently working on: Delivering high-quality freelance projects and building scalable SaaS MVPs for clients.
- 🌱 Currently exploring: Deep diving into the Laravel ecosystem, AI-driven development tools (MCPs), and advanced caching strategies.
- 🤝 Open for: Freelance opportunities, SaaS MVP development, and cross-platform mobile architecture consulting.
- ⚡ Fun Fact: When I'm not writing code, I'm usually researching system design, exploring end-to-end encryption, or experimenting with new DevOps tools on Ubuntu.
Programming Languages
Mobile Development & State Management
Frontend Web
Backend
Databases & Caching
DevOps, Infrastructure & Hosting
AI & Autonomous Agents
Tools & Services
- Frameworks: Flutter (6+ years production experience)
- Core Strengths: Offline-First Architectures, seamless background data synchronization, complex custom UI animations, and native performance optimization.
- State Management: Riverpod, Bloc, Provider
- Local Storage & Sync: Hive, SQLite, Firebase (Firestore offline persistence)
- Frontend: React.js, Next.js, TypeScript, JavaScript
- Backend: Node.js, Express.js
- Databases: PostgreSQL, MongoDB
- Caching: Redis
- DevOps & Deployment: CI/CD pipelines, Dokploy, GitHub Actions, Ubuntu server management
- Patterns & Principles: Clean Architecture, Domain-Driven Design (DDD), SOLID, MVVM, MVC
- Focus Areas: Scalable System Design, Custom API Development, End-to-End Encryption, Custom UI/UX design
