OPEN TO NEW OPPORTUNITIES
Hi, I'm
Abhishek Kumar
Senior Android Developer & Flutter Developer based in Gurgaon, India. 2.3+ years shipping production Flutter apps, including a full native-to-Flutter migration taken live on both the Play Store and App Store.
0
Apps Delivered
0
Years Experience
0
Downloads (BaOui)
0
Lower Alert Latency
MainActivity.kt
LIVE
Play Store Release
HappyTask — Play Store ✓
Appzillon — Banking ✓
ClubDunes — Realtime ✓
./gradlew assembleRelease
🤖 Android
social_engine.dart
LIVE
Migration Progress
iOS — App Store ✓
SocialEngine Chat — Live ✓
Widget tests — Mocktail ✓
flutter build ipa
🍎 iOS
</> Flutter & Android
MVVM
10+ apps shipped
// Who I am
About
I'm a Senior Android Developer & Flutter Developer based in Gurgaon, with 4.5+ years building mobile apps that make it all the way to production — not just working demos. Built on a strong native Android (Kotlin) foundation, the last 2.3+ years have been spent shipping production Flutter/Dart apps — from a ride-hailing platform live across two countries to a full native-to-Flutter migration.
At Ahead Websoft Technologies, I led a full native-to-Flutter migration of a social networking app — rebuilding its UI, navigation and core functionality from scratch while keeping every existing feature intact, then shipping it live on both the Play Store and App Store. Before that, at I-Next Web Technologies, I owned HappyTask end-to-end, a service booking platform still live today.
I care about the parts of mobile development that don't show up in a screenshot: clean MVVM architecture, tests that actually catch regressions, and a release process that doesn't break at 11pm.
Core strengths: Kotlin, Java, Dart, Flutter, Jetpack (Compose, ViewModel, Room, Paging 3, DataStore, WorkManager), MVVM/Clean Architecture, Hilt, Coroutines, StateFlow/Flow, Firebase, REST APIs and WebSockets — applied across social media, fintech, enterprise banking and mobility apps, with 4.5+ years of Android and 2.3+ years of Flutter experience.
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Years Experience
0
Apps Delivered
AndroidiOS
0
Platforms Shipped
0
Companies
career.timelineFeb 2022 → Present
20222023202420252026
KotlinDartFlutterJetpack ComposeMVVMClean ArchFirebaseHiltCoroutinesRESTWebSocketsPlay StoreApp StoreKotlinDartFlutterJetpack ComposeMVVMClean ArchFirebaseHiltCoroutinesRESTWebSocketsPlay StoreApp Store
✓ Google Play✓ App StoreSocialFintechBankingMobility
// Changelog
Career, versioned.
Every role shipped something real to production. Read top to bottom, like a release log.
v4.0
Jul 2025 — Present
current
Flutter & Android Developer
Ahead Websoft Technologies Pvt. Ltd — Gurgaon, India
- Mentored and guided 2 junior developers on Android development, reviewing code and unblocking them on architecture decisions.
SocialEngine Mobile App — Native-to-Flutter Migration
- Led the native Android (Kotlin) to Flutter migration end-to-end — independently rebuilt UI, navigation and state management with Provider and Riverpod while preserving full feature parity.
- Integrated REST APIs and Firebase services into the new architecture, including content sharing, activity feeds and real-time engagement modules.
- Reduced regression risk with unit and widget testing (Flutter Test, Mocktail); shipped the Flutter build to Google Play and the App Store (Android & iOS) from a single codebase, maintaining feature parity across platforms.
- The Flutter app holds 1,000+ downloads and a 4.3-star rating across 54 reviews.
- Built a TikTok-style short-video (clips) feature in Flutter.
- Integrated Firebase for Google Sign-In and FCM push notifications alongside the REST API layer.
FlutterDartFirebase
ProviderRiverpodMVVMREST APIsMocktailShort-Video
SocialEngine Chat — Flutter Application · Live on Play Store & App Store
- Built and shipped a real-time chat application in Flutter/Dart using MVVM, released on Google Play and the App Store.
- Supports 1:1 and group messaging across 5 content types — text, photo, video, file and contact — with upload/download progress, read receipts, typing indicators and paginated message history.
- Applied GetIt-based dependency injection for testability and clean layer separation; integrated REST APIs and Firebase for authentication and push notifications, with deep links opening the relevant chat and automatic login when launched from the SocialEngine app.
FlutterDartFirebaseREST APIsGetItMVVMGoogle Sign-InFCM
ClubDunes App — Android (Kotlin)
- Shipped a Dubai-based sports and events community app with 100+ downloads and a 5.0-star rating on Google Play.
- Built real-time posts, comments and interaction flows on Firebase Realtime Database, restructuring queries to keep feeds and event listings responsive under concurrent reads/writes.
- Implemented the sports and event booking module, including event listings, join/RSVP flows and member profiles.
- Added deep linking and embedded WebView content for seamless in-app navigation, with Custom Chrome Tabs for Stripe payment flows.
- Structured with MVVM and Coroutines for a clean, maintainable codebase.
- Built posts, comments and member interactions driven by REST APIs, with Firebase for Google Sign-In and FCM for push notifications.
- Optimized feed performance with Paging 3 pagination and Glide image caching for smooth scrolling; in-app video playback with ExoPlayer.
KotlinFirebase Realtime DBMVVMCoroutinesDeep LinkingWebViewStripeREST APIsPaging 3GlideExoPlayerFCM
v3.0
May 2024 — Jul 2025
Flutter & Android Developer
I-Next Web Technologies Pvt. Ltd — Chandigarh, India
GreenRide Africa — Ride-Hailing & Mobility Application
- Scaled a cross-platform Flutter ride-hailing app to 5,000+ downloads on Google Play and the App Store.
- Developed and maintained a cross-platform ride-hailing app in Flutter/Dart covering pickup/destination selection, fare estimation, ride confirmation and real-time trip status.
- Integrated map-based location services and real-time driver tracking so passengers could monitor driver movement and ETA, with Google Maps-based ETA monitoring.
- Implemented REST API integrations for authentication, user profiles, ride booking, pricing and trip management.
- Built safety features including trip sharing and quick access to in-app support.
- Integrated payment/wallet functionality with flexible payments — riders can pay by cash or mobile money (MTN, Airtel) — and multilingual support for English, French and Kinyarwanda.
FlutterDartGoogle Maps
FirebaseWebSocketsREST APIsReal-Time Tracking
HappyTask App — Service Booking Platform
- Architected and shipped HappyTask, a service booking platform spanning 15+ categories, live on the Play Store.
- Achieved 40% faster booking completion through optimized API pipelines and a redesigned UI flow.
- Built a WebSocket-based notification system that cut alert latency by 90% versus polling, plus a deep-linking layer for third-party navigation into specific service screens.
KotlinWebSocketsREST APIsDeep LinkingJetpack Compose
TixiePics — Automated Interval Camera App
- Built an automated interval-based photo capture app using CameraX, Camera2, AlarmManager and BroadcastReceivers.
- Implemented automatic cloud image uploads with image metadata via the Google Drive API and Dropbox SDK.
- Added admin-panel remote configuration so camera and capture settings could be updated without a new release.
JavaCameraXCamera2AlarmManagerGoogle Drive APIDropbox SDK
BaOui App — Language Learning Platform
- Launched a multilingual app with 1,000+ downloads across 30+ languages.
- Built listening, reading and spaced-repetition review/recall learning modules.
- Used Firebase for dynamic content delivery, enabling curriculum updates without app releases.
KotlinFirebase
v2.5
Feb 2024 — Apr 2024
Independent Development & Freelance Projects
Freelance Android & Flutter Developer
- Delivered freelance Android and Flutter work across multiple client apps — bug fixes, feature improvements and Play Store publishing/support.
v2.0
Feb 2022 — Jan 2024
Android App Developer
I-Exceed Technology Solutions Pvt. Ltd — Bengaluru, India
Appzillon App — Microservices Banking Platform
- Developed and delivered Android feature modules across Local, UAT and Production environments within Agile sprints, collaborating with designers, product managers, QA and backend teams.
- Implemented push notifications, WebView, AdMob, theme switching, collapsing toolbar, Google Maps SDK and Custom Chrome Tabs, supporting multiple application workflows.
- Resolved 30+ UAT and production defects, improving application stability, release quality and overall user experience.
- Implemented Android 14 compatibility updates for the Appzillon IDE (Camera and File Operation modules), and built Photo Picker, Barcode Scanning, Camera and File Operations features using Java and Kotlin.
- Integrated SIM Binding, SMS and SIM information features for mobile network management; built Universal Deep Linking for inter-app navigation, plus Network, SMS and GPS listeners for real-time updates and background operations.
- Wrote automated tests with Espresso and JUnit, delivering modules from business requirements through deployment.
KotlinAppzillon FrameworkFirebaseGoogle Maps SDKJavaEspressoJUnitAndroid 14
v0.1
2013 — 2021
Origin build
Foundational education
- B.Tech in Information Technology, Ajay Kumar Garg Engineering College, Ghaziabad — 70.63%.
// Shipped
Selected apps
A snapshot of what's actually live — not case studies, real releases.
Hybrid (Flutter)
SocialEngine Mobile
Full migration from native Android to Flutter, live on Play Store & App Store with feature parity. 1,000+ downloads, 4.3★ across 54 reviews.
FlutterFirebaseMVVMDartREST APIs
Live
SocialEngine Chat
Real-time chat app in Flutter with MVVM, Firebase, and GetIt-based dependency injection. 1:1 and group chats across text, photo, video, file and contact, with read receipts and typing indicators.
FlutterWebSocketsDartGetItFirebase
5,000+ downloads
GreenRide Africa
Cross-platform ride-hailing app with real-time driver tracking, fare estimation, wallet payments and multilingual support (EN/FR/Kinyarwanda). Pay by cash or mobile money (MTN, Airtel).
FlutterGoogle MapsFirebaseDartREST APIs
15+ categories
HappyTask
Service booking platform with a WebSocket notification layer and deep-linking, live on the Play Store.
KotlinWebSocketsJetpack ComposeREST APIs
▶ View on Play Store
Automated capture
TixiePics
Automated interval-based photo capture app using CameraX, Camera2, AlarmManager and BroadcastReceivers, with automatic cloud uploads via Google Drive and Dropbox.
JavaCameraXCamera2
1,000+ downloads
BaOui
Language-learning app across 30+ languages with spaced-repetition review and live curriculum updates.
KotlinFirebase
▶ View on Play Store
Enterprise banking
Appzillon
Microservices banking platform delivered through Local, UAT and production environments in Agile sprints. 30+ UAT/production defects resolved.
KotlinAppzillonJavaEspressoJUnit
100+ downloads
ClubDunes
Dubai-based sports & events community app with real-time posts, comments and event booking on Firebase Realtime Database. 5.0★ on Google Play.
KotlinCoroutinesREST APIsFirebaseExoPlayerPaging 3
▶ View on Play Store
// Toolbox
Stack
Tap a highlighted skill to see where I've used it.
Languages
KotlinJavaDart
Mobile Development
FlutterAndroid SDKJetpack ComposeMaterial 3
XML/ViewBinding
Cross-Platform DevelopmentCameraXCamera2ExoPlayer
Flutter
State ManagementProviderRiverpodBloc/CubitGetXGetIt
NavigationPlatform ChannelsNull Safety
REST IntegrationResponsive UI
Custom WidgetsAsync Programming
DioHiveSharedPreferences
Android
ViewModelLiveDataStateFlow
CoroutinesFlowRetrofit
OkHttpWorkManagerForeground Service
Deep LinkingWebViewCustom Chrome Tabs
RoomPaging 3DataStoreSQLiteGlidePicassoBackground Services
Architecture & Patterns
MVVMClean ArchitectureRepository Pattern
Dependency Injection (Hilt, GetIt)SOLIDOOPPerformance Optimization
Backend & Cloud
REST APIsFirebase AuthFirestore
Realtime DBFCMCrashlytics
Firebase AnalyticsWebSockets/Socket.IO
Testing & Tools
JUnitMockitoEspressoFlutter TestUnit TestingWidget Testing
MocktailGitCI/CD (GitHub Actions)
PostmanJIRAAgile/ScrumFigmaAndroid Studio
Integrations
Google Maps SDKReal-Time Location Tracking
Stripe & Wallet PaymentsPush NotificationsFCM Push Notifications
LocalizationAdMobGoogle/Facebook Login
Deployment
Play ConsoleApp Store Connect (iOS releases)Gradle
Google Play BillingAdMob
App SigningProGuard/R8
Security
JWT AuthenticationSSL PinningEncrypted StorageProGuard/R8
Methodologies
AgileScrumSprint PlanningCross-Functional CollaborationCode ReviewsRelease Management
// Background
Education & recognition
🎓 Education
B.Tech — Information Technology
Ajay Kumar Garg Engineering College, Ghaziabad
Intermediate
National Institute of Open School, Gorakhpur
SSC
RAMPUS, Gorakhpur
🏅 Certifications & Achievements
Introduction to FlutterSimplilearnKotlin Development Masterclass 2023UdemyAndroid App Development Masterclass (Java)Udemy★★★★★ HackerRank · Core Java🌐 English · Hindi
// One-pager
Resume
A dedicated, structured view of my experience — or grab the PDF directly.
Abhishek Kumar — Resume
Updated Oct 11, 2026 · Senior Android Developer & Flutter Developer
// Where I am
Based in Gurgaon, India
Open to new Flutter and Android roles. Drag the globe to explore.
Base
Gurgaon, India
Local time
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Timezone
IST · UTC+5:30
Status
Open to roles
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Open to new roles · Gurgaon, IN
Let's ship something together.
Open to Flutter and Android roles — happy to talk architecture, migrations, or your next release.