Shailendra Kumar

Backend Developer · Ruby on Rails · Flutter Enthusiast · Open Source Author

About Me

2.5+

Years Experience

Published Packages

1900+

Total Downloads

I'm a Backend Developer specializing in Ruby on Rails, building scalable APIs, integrating payment systems, and writing clean, test-driven code. I also publish open-source gems and Flutter packages used in production apps worldwide.

Featured Projects

Respondo - Smart JSON API response formatter for Rails

Tired of writing the same response wrapper in every controller? Respondo gives every Rails API a consistent shape — success, data, message, and meta. Pagination with Kaminari and Pagy just works, out of the box.

MIT License

Auditron - Lightweight, diff-only audit logging for ActiveRecord models.

No idea who changed what in production? Auditron quietly watches your ActiveRecord models and logs only what actually changed. Clean query DSL, retention policies, actor tracking — no extra dependencies.

MIT License

Skills & Technologies

Ruby
Dart
Python
Java
C++
C
Ruby on Rails
Sinatra
Flutter
Firebase
HTML5
CSS3
WebSocket
PostgreSQL
MySQL
SQLite
Redis
Supabase
JSON
GraphQL
gRPC
Firestore

FCM
Vercel
Netlify
Render
Railway
Nginx
Replit
Firebase Hosting
Cloudflare
Grafana
Git
GitHub
GitLab
Docker
VS Code
Postman
Bash / Zsh
RubyGems
Pub.dev
Ubuntu
Fedora Linux
Swagger

A Quantum Conundrum

An interactive thought experiment. Your observation collapses the wave function.

My fate is in superposition. Click the button to observe the outcome.

This is a simple game of chance and speed.

A roaming pet awaits the result!