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Suman Dey - Senior Full Stack Developer

Suman Dey 

Passionate Full Stack Developer

ROITech7+ Years
West Bengal, India
Available

About Suman Dey

Passionate Senior Full Stack Developer who loves crafting digital experiences that solve real problems - transforming complex challenges into elegant solutions for over 7 years

Who I Am

Hi there! I'm Suman Dey, a passionate Senior Full Stack Developer who absolutely loves what I do. For over 7 years, I've been crafting digital experiences that not only look great but perform exceptionally well. My journey has taken me deep into the world of modern web technologies, with React.js, Node.js, and TypeScript becoming my trusted companions along the way.

What drives me every day is the opportunity to transform complex business challenges into elegant, user-friendly solutions. Whether I'm building intuitive interfaces with React.js and modern tools like React Hook Form, or architecting scalable backend systems with Node.js and PostgreSQL, I always keep the end user in mind. After all, technology should make life easier, not more complicated.

In my current role as Team Lead & Technical Architect at ROITech Consulting, I've had the privilege of leading talented teams and delivering some really exciting projects. From building lightning-fast search engines using PostgreSQL trigram indexes to creating seamless automation workflows, every project teaches me something new and pushes me to grow.

Beyond the core development work, I'm genuinely fascinated by the entire ecosystem of modern software development. Cloud technologies with AWS, streamlined CI/CD pipelines, and even mobile development using SAPUI5 and Firebase - each piece of the puzzle contributes to creating something meaningful. What excites me most is seeing how these technologies come together to solve real problems for real people.

How It All Started

Picture this: a curious kid with a basic PC and painfully slow dial-up internet, spending hours trying to figure out why his HTML wasn't working. That was me about a decade ago! I still get that same rush of excitement when I remember creating my first interactive login form - it was just HTML and JavaScript, but when it actually worked, I felt like I had unlocked some kind of superpower. Every bug I fixed felt like solving a mystery, and honestly, that feeling hasn't changed much.

What started as weekend tinkering gradually became my life's passion. I found myself naturally gravitating toward creating smooth, intuitive user experiences with React.js and TypeScript on the frontend, while getting equally excited about building the robust systems that power them behind the scenes. There's something deeply satisfying about creating something that works beautifully both for the person clicking buttons and for the servers handling thousands of requests.

The real learning happened when I started facing those 2 AM production issues (we've all been there, right?). Nothing teaches you about system architecture like debugging a performance bottleneck when users are depending on your application. Those high-pressure moments, the complex refactoring projects, and the responsibility of leading teams through tough technical challenges - they've all shaped how I approach development today.

But here's what really keeps me going: it's not just about writing clever code or using the latest framework. It's about the moment when someone tells you that the application you built actually made their work easier, or when a team member you've mentored solves a problem in a way that makes you proud. Technology is just a tool - the real magic happens when that tool helps real people do amazing things.

Professional Experience

Career progression showcasing continuous growth and technical leadership in full-stack development

Team Lead & Technical Architect

ROITech Consulting

TL

Leading full-stack development teams, architecting scalable systems, and implementing modern DevOps practices for enterprise applications.

Team LeadershipSystem ArchitectureDevOps

Senior Full Stack Developer

ROITech Consulting

SR

Developed enterprise web applications using React.js, Node.js, and PostgreSQL with focus on performance optimization and scalability.

React.jsNode.jsPostgreSQL

SAP UI5 / Hybrid App Developer

ROITech Consulting

UI

Specialized in enterprise SAPUI5 applications and hybrid mobile development using Cordova and Firebase for cross-platform solutions.

SAPUI5CordovaFirebase

Key Technical Achievements

Proven track record of delivering high-impact solutions that drive business growth and technical excellence

High-Performance Database Architecture

Designed and implemented resume search engines using PostgreSQL trigram indexes, achieving sub-second query performance with complex filtering and pagination.

Scalable Backend Systems

Architected Node.js applications using worker threads and cluster modules for processing large files and AI tasks with maximum concurrency and fault tolerance.

Cloud Infrastructure & DevOps

Implemented AWS cloud solutions using S3 for storage and EC2 for compute, with automated CI/CD pipelines for seamless deployment and monitoring.

Advanced Frontend Development

Built complex React.js applications with dynamic forms using React Hook Form, implementing validation schemas, nested field handling, and real-time previews.

API Design & Documentation

Created comprehensive API documentation using Swagger and OpenAPI specifications, improving development team collaboration and reducing integration time.

Development Team Leadership

Led multiple development teams, implemented code review processes, conducted knowledge transfer sessions, and established best practices for agile development.

Performance Optimization

Migrated large-scale applications from Webpack to Vite, achieving 3x faster build times and implementing modern bundling strategies for improved developer experience.

Type-Safe Application Architecture

Implemented comprehensive TypeScript solutions across frontend, backend, and database layers, ensuring type safety and reducing runtime errors by 80%.

Enterprise Software Solutions

Developed custom SAP launchpads, electronic signature workflows, and hybrid mobile applications using SAPUI5 and Planet9 ecosystem integration.

Technical Expertise

Mastering modern technologies to build scalable, performant applications

Frontend

  • React.js & Next.js Development
  • TypeScript & JavaScript (ES6+)
  • Tailwind CSS & Responsive Design
  • State Management & Forms
  • Animation & UI/UX

Backend

  • Node.js & Express.js
  • PostgreSQL & Database Design
  • RESTful API Development
  • GraphQL Implementation
  • Microservices Architecture

DevOps & Cloud

  • AWS (S3, EC2, Lambda)
  • Docker & Containerization
  • CI/CD Pipeline Implementation
  • Git & Version Control
  • Linux & System Administration

Technology Stack

Core technologies I use to build exceptional digital experiences

TypeScript
JavaScript
React.js
Next.js
Node.js
PostgreSQL
AWS
Docker
Git
Tailwind
Swagger
Vite

Ready to Collaborate?

I'm always interested in challenging projects and opportunities to create impactful software solutions. Let's discuss how we can work together to bring your ideas to life.