Available for Android Projects

Siyamul Hasan Rafi

Senior Android Engineer crafting high-performance mobile experiences with Kotlin, Java & Firebase. I turn complex ideas into apps people love.

View My Work Let's Talk

Projects Shipped

Years Experience

Client Satisfaction

Play Store Apps

Kotlin

Expert · 5 yrs

Java

Expert · 4 yrs

Firebase

Advanced · 4 yrs

Jetpack

Advanced · 3 yrs

MVVM / Clean

Advanced · 3 yrs

50+

Projects Delivered

About Me

Building Apps That Matter

I'm Siyamul Hasan Rafi, a passionate Android developer from Bangladesh with 4+ years of experience. I specialize in building clean, scalable, and beautiful mobile applications that solve real problems.

KotlinJava Jetpack ComposeFirebase MVVMClean Architecture CoroutinesRoom DB RetrofitHilt/Dagger

Location📍 Bangladesh
Emailmdraffi530@gmail.com
WhatsApp+880 1999 842 041
Availability● Open to projects
LanguagesBengali, English

Technical Skills

My Expertise

🤖

Android Studio

Primary IDE for all Android development

97%

🔷

Kotlin

Modern Android language & Coroutines

95%

☕

Java

Core OOP & Android SDK

90%

🔥

Firebase

Auth, Firestore, RTDB, FCM, Storage

88%

⚡

Jetpack Compose

Modern declarative UI framework

85%

🏛️

MVVM / Clean Arch

Architecture patterns & best practices

90%

🗄️

Room Database

Local SQLite ORM for Android

87%

☁️

REST API / Retrofit

Network calls, OkHttp, JSON parsing

88%

Hilt / Dagger 2 LiveData / Flow Navigation Component WorkManager Glide / Coil ExoPlayer Google Maps SDK In-App Purchase Play Store Publishing Git / GitHub Material Design 3 Unit Testing

Career Journey

Professional Timeline

My journey through Android development, from junior to senior roles.

2021 — PRESENT

Senior Android Developer

Leading mobile development teams. Architecting scalable Android applications for international clients. Mentoring junior developers and driving code quality standards.

Team Leadership Architecture Design Code Review Client Management

2019 — 2021

Mid-Level Android Developer

Built and launched multiple apps on Google Play with 100K+ downloads. Worked on e-commerce, social media, and utility apps. Mastered Firebase ecosystem.

Play Store Firebase 100K+ Downloads

2018 — 2019

Junior Android Developer

Started my Android journey building small to medium applications. Contributed to open source projects and established a strong foundation in Java & Android SDK.

Java Android SDK Open Source

Portfolio

Featured Projects

Live web projects & Android apps — click to explore.

⭐ FEATURED LIVE DEMO

📄

New · Web App

CV Maker Free

Professional CV / Resume builder with live preview, multiple templates, and instant download. Create ATS-friendly resumes in minutes — completely free, no signup required.

HTML5 CSS3 JavaScript Print API Templates Live Preview

Live Demo Code

KOTLIN ANDROID

Social Connect App

Real-time messaging with E2E encryption, group chats, media sharing & Firebase MVVM.

FirebaseMVVM CoroutinesEncryption

GitHub

LIVE DEMO

💰

POS Store Manager — Finance Tracker

Personal finance management app. Track income, expenses & due payments with bKash/Nagad SMS integration.

Firebase RTDBJavaScriptBengali UI

Live Demo

LIVE DEMO

📝

Question Template Maker

Dynamic exam & quiz question template generator. Auto-format, print-ready output for teachers & students.

HTML5JavaScriptPrint API

Live Demo

LIVE DEMO

🩸

Blood Donor Portal

Community platform connecting blood donors with recipients. Features donor search, appointment system & responsive UI.

ResponsiveUX DesignHealthcare

Live Demo

LIVE DEMO

💝

Wish Love Web

Immersive interactive web experience with smooth animations & creative wish-themed greetings for special occasions.

AnimationsCSS EffectsInteractive

Live Demo

rafi@android-dev ~ zsh

▶./about-rafi --skills

Loading developer profile...

▶cat skills.json

{ "primary": ["Kotlin", "Java", "Android SDK"],

"backend": ["Firebase", "REST API", "Room DB"],

"arch": ["MVVM", "Clean Architecture", "Hilt"],

"experience": "4+ years", "status": "available" }

▶git log --oneline -5

a3f9c2d Add Jetpack Compose migration

b1e0482 Implement Firebase Cloud Messaging

c9d7f11 Refactor MVVM architecture

d4b2e88 Optimize RecyclerView performance

e7a1c04 Setup Hilt dependency injection

▶█

Client Feedback

What Clients Say

★★★★★

Rafi delivered our Android app ahead of schedule with excellent quality. His attention to detail is remarkable and the app performance exceeded our expectations.

John Doe

Tech Startup CEO

★★★★★

The app performance is outstanding. Rafi's expertise in Android development saved us months of work. Highly recommend for any Android project.

Sarah Miller

Product Manager

★★★★★

Professional, reliable, and highly skilled. Our app has a 4.8 rating on Play Store thanks to Rafi's exceptional work. Will definitely work with him again.

Alex Brown

CTO, Enterprise Solutions

Packages

Transparent Pricing

Flexible packages for every project size. All include full source code.

Starter

Basic App

$299/ project

Up to 5 screens
Firebase Auth
Basic UI/UX
Play Store upload
1 month support
Custom animations
API integration

Get Started

Truth or Dare 🎮

বন্ধুদের সাথে মজা করুন! বোতলটি ঘোরান এবং Truth বা Dare বেছে নিন।

Rafi 🌟

Guest

Friend

🍾

⬆️ বোতল ঘোরান!

মোট খেলা: 0 বার | বর্তমান: Rafi'র পালা

Get In Touch

Let's Build Together

Have a project in mind? Let's discuss how we can bring it to life.

I'm always open to discussing new Android projects, creative ideas, or opportunities to be part of your vision.

mdraffi530@gmail.com

+880 1999 842 041

Response Time

Within 24 hours

Location

Bangladesh (Remote available)

Siyamul Hasan Rafi

Building Apps That Matter

My Expertise

Professional Timeline

Featured Projects

Code Contributions

What Clients Say

Transparent Pricing

Truth or Dare 🎮

Let's Build Together