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Babul RajSingh

Lead Mobile and Full-Stack Developer building with Flutter and Laravel. Currently open to new opportunities in mobile and full-stack development.

Résumé
Babul Profile

Technologies and frameworks I use to build apps, platforms and interactive experiences.

Mobile Development

Flutter • Kotlin • Compose

Architecture

BLoC • Cubit • Clean Architecture

Backend Development

Laravel • PHP • REST APIs

Frontend Development

Next.js • Vue • Tailwind

Database

Supabase • Firebase • SQL

Cloud & DevOps

AWS • Git

Programming Languages

Dart • Java • Python

Game Development

Godot Engine

Services & APIs

Google Maps API

Mobile Development

Flutter • Kotlin • Compose

Architecture

BLoC • Cubit • Clean Architecture

Backend Development

Laravel • PHP • REST APIs

Frontend Development

Next.js • Vue • Tailwind

Database

Supabase • Firebase • SQL

Cloud & DevOps

AWS • Git

Programming Languages

Dart • Java • Python

Game Development

Godot Engine

Services & APIs

Google Maps API

Professional Journey

Experience

Building products across mobile, web, backend systems, and creative tooling. From startup teams to independent projects.

NOV 2025—NOW

Lead Mobile & Full-Stack Developer

Reupap Pvt. Ltd. · Haryana, India

Led a team of 5 developers in building a Flutter mobile app and Laravel/Vue.js e-commerce platform[cite: 1].

  • Reduced repetitive operational workload by 50-70% by automating invoice generation, shipment tracking, inventory synchronization, and order/discount processing through Laravel backend systems. Built an integrated admin dashboard for product management and customer operations[cite: 1].

Tech Stack

FlutterFlutter
DartDart
LaravelLaravel
PHPPHP
MySQLMySQL
JUN 2025—SEP 2025

Flutter Engineer & Team Lead

UptoSkills

Led a team of 8 interns to architect and ship a cross-platform logistics ecosystem in Flutter[cite: 1].

  • Architected Dispatcher, Driver, and Admin apps using Clean Architecture with feature-first structuring. Coordinated development and code reviews to maintain architectural consistency and smooth UI/UX. Integrated Google Maps API for real-time tracking and Supabase Storage Buckets for secure document management[cite: 1].

Tech Stack

FlutterFlutter
BLoCBLoC
FirebaseFirebase
AWSAWS
GitGit
JAN 2023—NOW

Founder & Software Engineer

HariPin

Independent studio shipping 5+ production apps and games across Android and desktop[cite: 1].

  • Owned the full product lifecycle from architecture to post-launch iteration. Key releases include Vishram, Sudoku, and inIcons (rated 4.5 on Play Store)[cite: 1].

Tech Stack

FlutterFlutter
DartDart
GodotGodot
FirebaseFirebase
JAN 2025

Product DeveloperMain Tech

Built a cross-platform content companion app using Clean Architecture, reaching 500+ early beta users[cite: 1].

Live App ↗
MAR 2025

Game DeveloperMain Tech

Developed a cross-platform Sudoku game featuring a recursive DFS-based puzzle generator and validation engine[cite: 1].

Devlog ↗
AUG 2024

Founder & Product DesignerMain Tech

Created a curated icon platform for creators and developers, achieving a 4.5 rating on the Play Store[cite: 1].

Website ↗