Full Stack Web Developer
System Architect

15+ 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.

🏗️System Architecture 👥Team Mentorship 🔍Code Quality ☁️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

Enterprise Projects

15+

Professional Projects

20+

Developers Mentored

100+

YouTube Gaming/Tutorial Videos Uploaded

Technical Skills

Technologies and tools I work with

🔧 Backend & APIs

Ruby on Rails 10+ Years

Node.js + Express Expert

Elixir + Phoenix Advanced

Sinatra Expert

🎨 Frontend

React Expert

Material-UI 4+ Years

UI/UX Design 4+ Years

Next.js Advanced

Tailwind CSS Advanced

📱 Mobile

Flutter Advanced

Dart Advanced

React Native Advanced

iOS/Android Deployment

📊 Big Data & Geo

PostGIS/Spatial Data Advanced

ElasticSearch Advanced

Redis/Caching Expert

Data Processing Advanced

⚙️ DevOps & Infrastructure

Docker Expert

CI/CD Automation Expert

Nginx/Load Balancing Expert

Ruby/Node Scripting Expert

☁️ Cloud

Vultr VPS Production

AWS Expert

Railway Hobby

Vercel Next.js

Render Rails

Heroku Legacy

👥 Leadership & Mentoring

Code Quality Daily

Junior Mentoring 10+ Years

Technical Guidance Senior

Architecture Decisions Lead

🧪 Testing & Automation

Cucumber BDD Expert

Selenium + Ruby Expert

Test Automation Expert

RSpec/Jest Expert

📈 Marketing & SEO

SEO Optimization 1+ Year

Digital Marketing Experience

Google Ads Campaign

Analytics Tracking

🎮 Gaming & Fun

DOTA 2 Squad Goals

Age of Empires Strategy

Insurgency Tactical

Clash of Clans Mobile

💻 Programming Languages

Ruby 15+ Years

JavaScript/TypeScript Expert

Elixir Advanced

Dart Advanced

Java/C++ Foundation

⚡ 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 - 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 → Seller App →

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 →

Surya Kitchens - Cast Iron Cookware

Online platform for purchasing premium traditional cast iron cookware. Bulk orders and individual purchases for an authentic cooking experience.

🚧 In Progress Next.js E-commerce Traditional

View Platform →

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

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

Full Stack Web Developer System Architect