Full Stack Web Developer
System Architect

16+ years transforming complex business challenges into powerful digital solutions. I build enterprise-grade systems that scale from startup to millions of users, while leading cross-functional teams to ship products that users love and businesses depend on.

๐Ÿ—๏ธSystem Architecture ๐Ÿ‘ฅTeam Mentorship ๐Ÿ”Code Quality โ˜๏ธDevOps Excellence
View My Work Get In Touch

About Me

Senior developer with deep expertise in big data processing, geo-spatial systems, and high-performance backend APIs. I architect scalable solutions, mentor development teams, and lead technical decision-making in complex enterprise environments.

Backend Architecture

Scalable APIs, big data processing, geo-spatial systems with Rails & Node.js

Team Leadership

Mentoring developers, code quality, technical guidance, and knowledge sharing

DevOps & Infrastructure

Docker, Jenkins, CI/CD pipelines, cloud architecture, and system optimization

Experience Highlights

A decade of building scalable systems and leading development teams

6+
Enterprise Projects
15+
Professional Projects
20+
Developers Mentored
100+
YouTube Gaming/Tutorial Videos Uploaded

Technical Skills

Technologies and tools I work with

๐Ÿ”ง Backend & APIs

Ruby on Rails 10+ Years
Node.js + Express Expert
Elixir + Phoenix Advanced
Sinatra Expert

๐ŸŽจ Frontend

React Expert
Material-UI 4+ Years
UI/UX Design 4+ Years
Next.js Advanced
Tailwind CSS Advanced

๐Ÿ“ฑ Mobile

Flutter Advanced
Dart Advanced
React Native Advanced
iOS/Android Deployment

๐Ÿ“Š Big Data & Geo

PostGIS/Spatial Data Advanced
ElasticSearch Advanced
Redis/Caching Expert
Data Processing Advanced

โš™๏ธ DevOps & Infrastructure

Docker Expert
CI/CD Automation Expert
Nginx/Load Balancing Expert
Ruby/Node Scripting Expert

โ˜๏ธ Cloud

Vultr VPS Production
AWS Expert
Railway Hobby
Vercel Next.js
Render Rails
Heroku Legacy

๐Ÿ‘ฅ Leadership & Mentoring

Code Quality Daily
Junior Mentoring 10+ Years
Technical Guidance Senior
Architecture Decisions Lead

๐Ÿงช Testing & Automation

Cucumber BDD Expert
Selenium + Ruby Expert
Test Automation Expert
RSpec/Jest Expert

๐Ÿ“ˆ Marketing & SEO

SEO Optimization 1+ Year
Digital Marketing Experience
Google Ads Campaign
Analytics Tracking

๐ŸŽฎ Gaming & Fun

DOTA 2 Squad Goals
Age of Empires Strategy
Insurgency Tactical
Clash of Clans Mobile

๐Ÿ’ป Programming Languages

Ruby 15+ Years
JavaScript/TypeScript Expert
Elixir Advanced
Dart Advanced
Java/C++ Foundation

โšก Frameworks & Libraries

Ruby on Rails 15+ Years
Express/Node.js Expert
Next.js Advanced
Phoenix/Elixir Advanced
Sinatra Expert
Cucumber/Selenium Testing Expert

Featured Projects

Some of my recent work and side projects

Atofon Logo

Atofon - B2B Construction Marketplace

Live startup from Namakkal - Complete B2B marketplace for construction & industrial supplies with buyer and seller apps. Anonymous quotes, secure transactions.

Live Startup B2B Marketplace Web + Mobile Production
Buyer App โ†’ Seller App โ†’
Available on App Store & Play Store
Its Me

Personal Portfolio & Tech Showcase

Full-stack Rails 8 application featuring modern responsive design, automated Docker deployment, and optimized asset pipeline. Showcases technical expertise and project portfolio.

Rails 8 Tailwind CSS Docker Responsive
View Source โ†’
Surya's Cookware Logo

Surya's Cookware - Cast Iron Cookware

Premium traditional cast iron cookware manufacturer and distributor.

โœ… Live Next.js E-shop Manufacturing
Visit Site โ†’
Vega Tools & Hardwares Logo

Vega Tools & Hardwares

Professional portfolio website for a construction tools and hardwares store. Showcasing product categories, services, and shop information with a clean, modern design.

โœ… Live Rails Portfolio Hardware Store
Visit Site โ†’
Never Before Marketing Logo

Never Before Marketing

Digital marketing agency platform showcasing services, case studies, and client testimonials. SEO-optimized with lead generation forms and service packages.

โœ… Live Next.js Marketing SEO
Visit Site โ†’
TStack
CLI-DRIVEN FULL STACK

TStack Kit - Full-Stack Starter CLI

Production-ready Deno full-stack foundation. CLI-driven scaffold to ship an MVP in a single day -- API + Admin + Storefront with auth, e-commerce, 360+ tests, and Docker multi-env.

Open Source Deno CLI Tool Full Stack
GitHub โ†’ Landing Page โ†’
เฎชเฎฟเฎฑเฏˆเฎšเฏ‚เฎŸเฎฉเฏ
PIRAISOODAN

Piraisoodan - Tamil Writing App

Local-first desktop app for Tamil writers. Organize books, chapters, and pages with native Tamil support, a rich text editor, and offline-first architecture. Built for story writers.

Tauri v2 SvelteKit SQLite Hobby Project
View Source โ†’
MSI FAN CONTROL

MSI Fan Control for Linux

Linux utility to control MSI laptop fans with Cooler Boost toggle, real-time CPU/GPU temp monitoring, and a glassmorphism UI. Built because MSI Dragon Center is Windows-only.

Rust Tauri v2 Linux Hardware
View Source โ†’

Let's Work Together

Have a project in mind? Let's discuss how I can help bring it to life.

Get in Touch

desinghrajan@gmail.com
LinkedIn Profile
GitHub Profile
Twitch Stream
YouTube Channel

Professional Services

  • โ€ข Backend API Development (Rails, Node.js, Elixir)
  • โ€ข Frontend Development (React, Material-UI, 4+ years UI/UX)
  • โ€ข Test Automation (Cucumber, Selenium, CI/CD)
  • โ€ข System Architecture & Technical Leadership
  • โ€ข DevOps & Infrastructure (Docker, Automation)
  • โ€ข SEO & Digital Marketing Optimization
  • โ€ข Technical Consulting & Team Mentoring