Site's being built in the open, new pieces shipping regularly

Open to Work

Babul RajSingh

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

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My Toolkit

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

Experience

Building products across mobile, web, backend systems, and creative tooling.

NOV 2025NOW

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.

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.

Tech Stack

Flutter

Dart

Laravel

PHP

MySQL

JUN 2025SEP 2025

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.

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.

Tech Stack

Flutter

BLoC

Firebase

AWS

Git

JAN 2023NOW

JAN 2023—NOW

Founder & Software Engineer

HariPin

Independent studio shipping 5+ production apps and games across Android and desktop.

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

Tech Stack

Flutter

Dart

Godot

Firebase

Selected Work

View all projects →

Sudoku

Sudoku

A Sudoku game built in Godot with a win-animation system, streak tracking, and a custom numpad badge counter.

Mobile

Sudoku

Sudoku

A Sudoku game built in Godot with a win-animation system, streak tracking, and a custom numpad badge counter.

Mobile

Vishram

Vishram

A Flutter movie and show tracking app with TMDB integration, Clean Architecture, BLoC/Cubit state management, and a 47-badge gamification system.

Mobile

inIcons

inIcons

An icon pack / utility app published under HariPin Studio.

Mobile

Edits & Motion Work

Recent Cuts

I had 48 hours to finish my app or DELETE IT forever

ba6ul

I gamified my movie watchlist (it got out of hand)

ba6ul

How I Built a Sudoku WHILE Solving The World's Hardest Puzzle

ba6ul

How I Made My First Game with Godot: A Hands-On Tutorial

ba6ul

I Rewrote My Sudoku Game (5 Features I Actually Use) | Godot

ba6ul

I Built My Own Letterboxd. Here's Why

ba6ul