Alok Singh — Flutter Developer
Cross-platform mobile app developer with 30+ published apps across Google Play Store and Apple App Store.
Cross-platform mobile app developer with 30+ published apps across Google Play Store and Apple App Store.
Flutter Developer
I build production-ready Flutter applications with clean architecture, responsive UI, Firebase, REST APIs, Google Maps, real-time tracking, and app-store deployment experience.
Resume: View resume
Cover letter: View cover letter
Email: aloksingh1114@gmail.com
30+ apps shipped
Play Store + App Store delivery
Mobility specialist
Taxi, rental, ride-sharing, maps, tracking
Production ownership
Build, deploy, debug, maintain, improve
Portfolio snapshot
Focus area | Proof |
Published apps | 30+ mobile applications deployed across Google Play Store and Apple App Store |
Main domains | Ride-hailing, taxi, rentals, e-commerce, food delivery, logistics, AI platforms, booking systems |
Core stack | Flutter, Dart, Firebase, REST APIs, Google Maps, GetX, Bloc, Android, iOS |
Strongest work | Real-time tracking, map workflows, chat, push notifications, KYC, multi-role app architectures |
Profile
I design and develop mobile applications using Flutter and Dart, with a strong focus on clean code, responsive design, maintainable architecture, and smooth user experience.
I have developed and published 30+ mobile applications across the Google Play Store and Apple App Store, covering ride-hailing, car rental, e-commerce, food delivery, AI platforms, KYC workflows, booking systems, and logistics applications.
The projects below are the main products I have worked on and represent my strongest hands-on experience across real-world app development, API integration, Firebase-backed features, maps, app-store delivery, debugging, and production maintenance.
Core strengths
Flutter app development
Android and iOS apps from one scalable codebase.
Clean architecture
MVC, MVVM, modular design, reusable widgets, maintainable structure.
Firebase + APIs
Auth, Firestore, Realtime Database, FCM, REST APIs, JSON parsing.
Maps + tracking
Google Maps, live tracking, geolocation, background location, routing.
Technical skills
Mobile development
- Flutter Framework
- Dart Programming
- Cross-Platform App Development
- Android & iOS
- Responsive UI Development
- Material Design
- Cupertino Widgets
- Mobile App Architecture
Architecture
- MVC Architecture
- MVVM Architecture
- Clean Architecture
- Dependency Injection
- Modular App Design
- Reusable Widgets
- SOLID Principles
- Code Refactoring
State management
- GetX State Management
- Bloc State Management
- Scalable app state handling
- Maintainable feature flows
APIs & Firebase
- RESTful API Integration
- Backend API Integration
- Third-Party SDK Integration
- API Error Handling
- JSON Parsing
- Firebase Authentication
- Cloud Firestore
- Firebase Realtime Database
- Push Notifications / FCM
Experience
A track record of building, deploying, and maintaining production Flutter apps across mobility, rentals, commerce, logistics, and AI-platform workflows.
Flutter Developer — Sizh IT Solution Pvt. Ltd
11/2023 – Present
Key projects: TUKKI (rental/chat), UNIBOOKER (bookings), Speedy Rent (map rentals), ZUP (ride-sharing), SOS Shop (e-commerce app), ARKELA PH (KYC rentals), plus taxi, bus, e-commerce, food, rental, and logistics applications.
- Spearheaded end-to-end development and deployment of 30 Flutter applications, achieving 100% approval success across Google Play Store and Apple App Store
- Delivered projects on time through sprint planning, task prioritization, and stakeholder coordination
- Engineered real-time Firebase chat, push notifications, and live tracking features to improve user engagement and in-app responsiveness
- Integrated Google Maps and geolocation features across multiple applications to improve booking accuracy, live tracking, and navigation workflows
- Implemented secure authentication, KYC workflows, and role-based access for rental, taxi, marketplace, and logistics platforms
- Improved application performance and UI rendering stability through profiling, refactoring, and optimized widget management
- Designed scalable multi-role architectures supporting admin, vendor, driver, and user modules across complex transactional platforms
- Strengthened post-release stability through debugging, production fixes, and clear client communication
Flutter Developer — Sparrow Software
11/2022 – 11/2023
Key projects: MILLAN App (vendor stock management), Ashram Booking Website (online room booking), Sparrow Software Company Website (corporate platform).
- Developed and maintained 5 Flutter applications, improving performance, usability, and feature reliability across production releases
- Built responsive UI components using clean architecture principles, improving maintainability and reducing UI inconsistencies
- Integrated REST APIs, authentication, and state management to support smooth data synchronization across modules
- Delivered vendor-facing and customer-facing features supporting 1,000 active records with real-time updates in business-critical workflows
- Collaborated on code reviews, bug fixes, and feature enhancements, reducing post-release defects by 30% and improving release stability
- Executed sprint-based deliveries aligned with business requirements, maintaining a 100% on-time feature completion rate throughout the engagement
Flutter Developer Intern — Zennit Technology
07/2022 – 11/2022
- Built reusable Flutter UI components and integrated APIs, supporting 3 modules across active team projects
- Assisted with testing, debugging, and feature enhancements, reducing reported issues by 25% and improving pre-release application stability
Featured production projects
Main production projects across ride-hailing, rental, AI, commerce, maps, location tracking, and app-store published mobile products.
1. 3reees — Taxi Booking & Ride-Hailing App
Role: Flutter Developer — developed and maintained the rider and driver applications
Overview
3reees is a smart taxi booking and ride-hailing application built to connect riders and drivers through a seamless mobile experience. Riders can book trips instantly, track drivers in real time, view ride details, and complete trips through secure booking workflows. Drivers can receive requests, manage trip status, navigate routes, and track earnings.
Key work
- Developed and maintained Flutter mobile applications for rider and driver workflows
- Implemented real-time ride booking and driver matching flows
- Integrated Google Maps for live driver tracking, route visibility, and navigation support
- Built fare estimation and trip calculation logic
- Developed the full trip lifecycle: request, accept, ongoing ride, completion, and history
- Implemented OTP-based authentication, secure login, bug fixes, production updates, and performance optimization
Tech stack: Flutter · Dart · Firebase · Google Maps · REST APIs
2. WheelDot — Advanced Car Rental Platform
Role: Flutter Developer — contributed to mobile app experience and rental booking flows
Overview
WheelDot is an advanced car rental platform that helps users find, book, and rent cars easily. The product supports search by destination, trip duration, vehicle discovery, rental requests, host onboarding, and customer support touchpoints.
Key work
- Built Flutter screens for car discovery, booking, categories, and rental status flows
- Integrated API-driven vehicle listings, booking data, and rental details
- Improved navigation across search, selection, and booking journeys
- Supported bug fixes, UI refinements, production maintenance, and location-aware workflows
Tech stack: Flutter · Dart · REST APIs · Firebase · Location-based services
3. Chalofy Rentals — Bike Rental & Ride Module Platform
Role: Flutter Developer — worked on the mobile application and ride module functionality
Overview
Chalofy Rentals is a rental platform focused on vehicle rental discovery, booking workflows, and service access through a clean mobile experience. The project has reached 1 lakh+ downloads and was updated with a ride module, expanding the platform beyond rentals into mobility workflows.
Key work
- Contributed to rental booking flows and user-facing app screens
- Helped update and improve the app with ride module functionality
- Integrated rental and ride-related API data into the mobile app
- Supported performance, bug fixes, UI refinements, and production maintenance for a high-usage app
Tech stack: Flutter · Dart · REST APIs · Firebase · Location-based services
4. Wookii — Mobile App Platform
Role: Flutter Developer — worked on mobile app experience across Android and iOS
Overview
Wookii is a cross-platform mobile application with landing page and published app availability across iOS and Android. The project required polished app flows, reliable UI behavior, API-backed workflows, and release-ready implementation.
Key work
- Built and maintained cross-platform Flutter screens
- Developed clean UI components aligned with the product experience
- Integrated API-driven data and app flows
- Supported app stability, bug fixes, production maintenance, and public app-store availability
Tech stack: Flutter · Dart · REST APIs · Firebase · Android · iOS
5. GoDriveTR — Taxi Booking App
Role: Flutter Developer — worked on taxi booking mobile application and production app flows
Overview
GoDriveTR is a taxi booking application with a public landing page and published app links. The platform is designed around ride-hailing workflows, taxi service discovery, booking flows, and mobile-first user experience.
Key work
- Built and maintained Flutter screens for ride booking workflows
- Integrated booking-related API data into mobile UI screens
- Improved navigation, loading states, validation, and user interactions
- Supported production maintenance, bug fixes, and app stability improvements
Tech stack: Flutter · Dart · REST APIs · Firebase · Location-based services · Android · iOS
6. Rydio — Ride-Hailing Mobile App
Role: Flutter Developer — worked on cross-platform ride-hailing mobile application
Overview
Rydio is a ride-hailing mobile application published for Android and iOS. The app supports real-world mobility workflows, ride service access, booking, navigation, and ride-management flows.
Key work
- Built cross-platform Flutter screens for Android and iOS
- Contributed to ride booking, ride status, and user-facing mobility workflows
- Integrated API-driven ride data into responsive mobile UI screens
- Supported app stability, production updates, and app-store release maintenance
Tech stack: Flutter · Dart · REST APIs · Firebase · Android · iOS · Location-based services
7. Graby QA — iOS Commerce App
Role: Flutter Developer — worked on mobile application experience and production app flows
Overview
Graby QA is a food ordering and quick-commerce style mobile application published on the App Store. The app helps users browse items, explore stores or food options, manage selections, and complete ordering flows through a clean mobile experience.
Key work
- Built Flutter screens for iOS app workflows
- Developed product browsing, listing, cart, and order journey flows
- Integrated API-driven data into responsive app screens
- Improved navigation, validation, loading states, error handling, and release stability
Tech stack: Flutter · Dart · REST APIs · Firebase · iOS
8. Korevia — AI Agent Management Platform
Role: Flutter Developer — working on app experience for managing apps and creating AI agents
Overview
Korevia is an AI platform focused on helping users create, manage, and operate AI agents through a structured application experience. This project expands my portfolio beyond mobility and commerce into AI product development, agent workflows, and dashboard-style app interfaces.
Key work
- Building app screens for AI platform workflows
- Contributing to agent creation and management flows
- Developing UI components for dashboards, forms, configuration screens, and app-management views
- Integrating API-driven platform functionality into the Flutter app
- Improving validation, loading states, navigation, and user interaction patterns
Tech stack: Flutter · Dart · REST APIs · Firebase · AI platform workflows · Dashboard UI
Development approach
Product understanding
User flow, business requirement, platform needs, and success criteria.
Clean structure
Screens, models, services, state, reusable widgets, and feature modules.
Polished UI
Responsive layouts, consistent components, smooth navigation, reliable states.
Production delivery
APIs, Firebase, maps, testing, debugging, store builds, and post-launch fixes.
Available for Flutter developer roles and mobile app projects
View resume · View cover letter · Email me
View resume · View cover letter · Email me
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