Available for Work

Rafiqul Islam
Shaon

Flutter Developer · Code Reviewer · Problem Solver

Flutter developer with nearly 2 years of experience working on production apps. Skilled in code review, debugging, performance optimization, bug fixing, and adding new features to existing applications. Experienced with Firebase, APIs, sockets, maps, push notifications, and Play Store/App Store releases.

Worked on 15+ apps · Production Experience · Play Store & App Store Releases
💬 Hire Me View Projects ↓ Resume
Rafiqul Islam Shaon
📱 Flutter Developer
Who I am

About Me

🚀

What I Do

I work on production-level Flutter apps — fixing bugs, improving performance, reviewing code, and building new features. I also develop complete apps from scratch and handle Play Store and App Store releases.

🧠

How I Think

I focus on understanding the real root problem before writing code. Comfortable working with large existing codebases, debugging critical issues, and improving app stability without breaking production flow.

🌱

Always Growing

Always learning new technologies and improving development workflows. Currently exploring AI-assisted development, advanced Flutter architecture, and scalable app systems.

🌍

Background

Based in Mohakhali, Dhaka, Bangladesh. Fluent in Bengali and conversational English. Open to remote work and international collaboration.

Career

Work Experience

🏢
Sparktech Agency
May 2025 – Present
Flutter Developer (Full-time)
  • Worked on 15+ production apps across multiple industries.
  • Focused on code review, debugging, performance optimization, and bug fixing.
  • Added and maintained features in existing applications without affecting production stability.
  • Integrated Firebase, REST APIs, sockets, maps, push notifications, deep linking, and in-app purchases.
  • Worked with audio/video calling systems and real-time communication features.
  • Managed Play Store and App Store releases for multiple live applications.
📚
Biddabari Publications
June 2024 – Present
Flutter Developer (Part-time)
  • Built and maintained a large-scale government job preparation platform with 100K+ downloads.
  • Developed features including course streaming, exams, blogs, job circulars, and offline video downloads.
  • Integrated REST APIs, Firebase services, and push notifications.
  • Improved app performance, fixed production bugs, and maintained stable releases.
  • Worked closely with designers and backend developers to deliver new features quickly.
Portfolio

Featured Projects

📖
Play Store
Biddabari
Government Job Preparation Platform

Large-scale Flutter learning platform for BCS, Bank, SI, and government job preparation. Worked on exams, PDF notes, offline videos, blogs, job circulars, API integration, and performance optimization while maintaining production releases.

FlutterGetX FirebaseOffline
💼
APK
Tradiezz
Job Circular & Recruitment App

Built a recruitment platform for recruiters and job seekers. Developed authentication, REST API integration, socket-based real-time features, push notifications, and in-app purchases. Focused on scalable architecture, performance, and smooth user experience.

FlutterGetX FirebaseREST API
🔧
Play Store App Store
Servana
Service Booking App

Worked on a live service booking platform focusing on debugging, performance optimization, and feature development. Improved booking flow, real-time updates, maps integration, and overall app stability for production users.

FlutterBug Fixing Play StoreApp Store
🌿
APK
ForageGuide
Wild Plant & Mushroom Foraging App

A Flutter app for wild plant and mushroom foraging. Helps users identify edible and toxic species, find what's growing nearby, and keep a personal foraging journal. Built with Flutter + free iNaturalist API. No backend, no server costs, works offline.

FlutterREST API OfflineiNaturalist
🔒
APK
Device Care
Private Security Application

A private security application built with Flutter and Android Native (Kotlin) that monitors and logs system-wide keystrokes using Android's Accessibility Service. The app runs persistently in the background — even when completely closed or after a device reboot — and automatically delivers logs to a configured Telegram bot.

FlutterKotlin Android NativeAccessibility Service
➕
Other Projects
13+ More Apps

Rey Barber · Partner · Curlu · PodLove · Grupo ANF · Impacto App · Night Out Finder · Careness · Kids Know Rights · Theory Panda · U-Tee Hub · Dental Desh App · Bazar 24/7

Various DomainsFlutter
Tech Stack

Skills & Tools

📱 Mobile Development
FlutterDartAndroid (Java) Kotlin (Basic)iOS DeploymentPlay Store Deployment
⚙️ State Management
GetXRiverpodBLoC
🔗 Backend & APIs
REST API IntegrationFirebase AuthFirebase FirestoreFirebase Cloud MessagingSupabaseDioHttp
🗄️ Local Storage
GetStorageflutter_secure_storageshared_preferencesSQLiteobjectbox
📦 Libraries & Tools
flutter_screenutilqr_fluttergoogle_maps_flutterencryptsocket_io_clientflutter_local_notificationsfirebase_authcloud_firestorefirebase_messagingfirebase_storagecached_network_imageurl_launcherpermission_handlerGitGitHub
🤖 AI & Productivity
AI-assisted Development Agentic AI Workflows Prompt Engineering Development Automation
💻 Programming Languages
DartJavaKotlin (Basic)Python (Basic)C
Curious Mind

Books & Blogs I Read

📘
সবার জন্য সি
by Kamruzzaman Niton
My foundation in C programming — a beautifully crafted Bengali book that made low-level concepts feel intuitive. Helped me think like a programmer before jumping into mobile.
💡 Language: C
☕
An Introduction to Java Programming Language
by Y. Daniel Liang
The best book to learn Java and OOP. This is where I cleared my OOP concepts and learned Java deeply — from inheritance and polymorphism to collections and exception handling.
📚 Language: Java
🐍
Automate the Boring Stuff with Python
by Al Sweigart
Practical scripting for real-world automation. From web scraping to file handling — gave me a productivity superpower that saves hours daily.
⚡ Language: Python
🌐
Kotlin Fundamentals
w3schools.com
Quick, hands-on reference for modern Android syntax. Explored null safety, coroutines basics, and concise expressions — sharpened my cross-language adaptability.
📖 Resource: w3schools
🎯
Dart & Flutter Deep Dive
official documentation / blogs
Official Dart.dev language tour + community blogs. Mastered async/await, isolates, sound null safety, and advanced Flutter patterns that power production-grade apps.
✨ dart.dev & community
🧠
Agentic AI & Dev Workflows
blogs & research papers
Exploring how AI agents reshape development. Reading about prompt engineering, LLM-assisted debugging, and AI tooling to stay ahead in tech evolution.
🤖 Emerging tech
Beyond Code

Hobbies & Interests

📰
Daily Reading
I read articles every day on Medium.com to increase my knowledge and keep myself updated with the latest in tech, productivity, and beyond.
📚 Medium · Daily
✈️
Travelling
Exploring new places and experiencing diverse cultures. Been to Cox's Bazar, Sylhet, Sreemangal, Sitakundu, and more.
🌍 Wanderlust
🎬
Movies
Love watching thought-provoking cinema. Favorites: The Prestige, 2001: A Space Odyssey, Interstellar, The Dark Knight.
🍿 Cinephile
🃏
Playing Cards
Enjoy friendly card games with family and friends — a great way to relax and connect.
♠️ ♥️ ♣️ ♦️
Academic

Education

B.Sc. Course
Govt. Bangabandhu College
HSC
Sabira Rouf College
SSC
Angaria High School
Get in Touch

Contact Me

Available for freelance, remote, and full-time opportunities. Feel free to contact me for app development, debugging, performance optimization, or maintaining existing Flutter applications.

✉️
Emailshaonx@proton.me
 💬
WhatsApp+88 01617 408676
 🔗
LinkedInlinkedin.com/in/sh4on
 🐙
GitHubgithub.com/sh4on