I build beautiful, fast mobile apps with Flutter.
A professional Flutter developer crafting pixel-perfect, high-performance apps for iOS and Android from a single codebase. 5+ apps shipped to production, loved by real users.
Turning ideas into apps people actually enjoy using.
I focus on building cross-platform mobile apps that feel native, load fast, and scale well. My background spans e-commerce, fintech, health & fitness, and education apps — always with an eye for clean architecture and a smooth, intuitive user experience.
I care about the details most users never consciously notice: 60fps animations, sensible state management, offline support, and code that is easy for the next developer to maintain.
class Developer {
final name = 'Sakib Hasan';
final role = 'Flutter & Mobile App Developer';
final stack = [
'Flutter', 'Dart',
'Firebase', 'REST',
];
final mission =
'Ship apps users love.';
}Tools I use to build great apps
A focused toolkit, refined across dozens of real-world apps.
Mobile Development
Backend & APIs
Tools & Practices
Apps I've designed & shipped
A selection of production apps built end-to-end with Flutter.
Featured
RUKU – Prayer & Quran Guide
Your Daily Companion for Prayer, Quran & Dhikr.
RUKU is a modern Islamic mobile application designed to help users stay connected with their daily prayers, Quran readin...
Featured
WorkZen — HRM & Payroll Management System
Modern HRM & Payroll Management System with Flutter Mobile App
A modern HRM and payroll management system designed for growing teams, featuring a Laravel admin panel and cross-platfor...
Featured
PaySuite — SaaS Invoice & Billing Management System
Multi-Tenant SaaS Invoice & Billing Management System
A complete multi-tenant SaaS invoice and billing management system built for small and medium-sized businesses. PaySuite...
Featured
Tribu — Club & Committee Management App
Club & Committee Management with Flutter Mobile App
A comprehensive club and committee management platform designed for membership-based organizations, professional network...
Featured
Takbir Pro — Islamic Companion App
Islamic Companion App for Quran, Prayer & Ramadan
Takbir Pro is a comprehensive Islamic mobile application designed to help users strengthen their connection with the Qur...
SVG File Downloader
Preview, Edit & Download SVG Files — Anywhere.
SVG File Downloader is a cross-platform Flutter application designed to make working with SVG files simple and convenien...
Where I've made an impact
Flutter Developer (Remote) · Theme29
Apr 2025 – PresentDeveloped and maintained production-ready mobile applications using Flutter and Dart, integrating REST APIs, Firebase, state management, and third-party services. Implemented responsive UI, mobile platform features, debugging, optimization, and Google Play Store releases while collaborating with backend and design teams.
What clients say
"Sakib did an excellent job developing the Flutter mobile application for our SaaS billing platform. His attention to detail, API integration skills, and understanding of complex invoicing, payments, customers, and subscription workflows resulted in a polished and reliable mobile experience."
"Sakib was instrumental in developing our Flutter mobile application. He delivered a smooth experience across member management, committees, meetings, QR-based attendance, notifications, and membership features. His technical skills and attention to detail made a real difference to the project."
"Sakib did a great job developing and maintaining the Takbir Pro mobile application. His Flutter expertise, attention to UI details, API integration, and ability to deliver a smooth cross-platform experience made the development process much easier. We appreciated his professionalism and commitment throughout the project."
"Sakib delivered a reliable and user-friendly Flutter mobile application for our HRM and payroll platform. His work across responsive UI, API integration, employee management, attendance, leave, expenses, and payroll features helped create a smooth mobile experience for our users."
Notes on Flutter development
Why I Choose BLoC for Large Flutter Apps
A practical look at when BLoC pays off — and when it is overkill.
Read more →5 Mistakes That Slow Down Your Flutter App
Common performance pitfalls I see in production codebases, and how to fix them.
Read more →Let's build your next app
Have a project in mind, or just want to say hi? My inbox is open.