Hi, I’m Rajon Dey
Software Developer & Module Lead
With 5+ years of experience leading development teams and building scalable applications. I specialize in React, Next.js, and full-stack solutions that drive real business impact.

Introduction
At a Glance.
As a Software Developer and Module Lead with 5+ years of experience, I specialize in building scalable web applications using React, Next.js, and full-stack technologies. I lead a team of 8+ developers at SJ Innovation, where we've delivered 100+ websites and SaaS platforms serving 100K+ monthly users.
My expertise spans performance optimization (30% faster load times, 40% higher Lighthouse scores), team leadership, and mentoring. I've architected 15+ MERN-stack applications handling 5K+ daily active users and introduced CI/CD pipelines that cut deployment time by 60%.
Beyond client work, I actively build products like ClipKit (SaaS platform) and contribute to AI security research. I'm passionate about creating solutions that balance technical excellence with real business impact.
Ready to discuss how I can contribute to your team's success!
Download My CV
Full-Stack Development

Team Leadership

Performance Optimization

SaaS & Web Applications
My Tech Stack
Delivering impactful solutions with advanced technologies. My carefully selected tech stack ensures robust, scalable, and user-friendly applications.
What I Have Done So Far
Work Experience.
Module Lead - Frontend
SJ Innovation LLC
- Lead a team of 8+ developers, delivering 100+ websites and SaaS platforms serving 100K+ monthly users.
- Architected and deployed 15+ MERN-stack applications handling 5K+ daily active users.
- Improved React/Next.js app performance, reducing load times by 30% and boosting Lighthouse scores by 40%.
- Introduced CI/CD pipelines that cut deployment time by 60% and improved team productivity by 25%.
- Mentored junior engineers and conducted code reviews to maintain high code quality standards.
Freelance Web Developer
Fiverr & PPH
- Completed 200+ client projects (e-commerce, blogs, SaaS apps) with consistent 5-star ratings.
- Developed websites using WordPress, Shopify, Wix, Squarespace, and custom HTML/CSS/JS solutions.
- Managed client relationships and project delivery from requirements gathering to deployment.
- Specialized in responsive design and performance optimization for various business needs.
Featured Projects
A selection of my most impactful projects, demonstrating technical expertise, leadership, and real-world business value.

A full-stack platform for Online IELTS test practice with real-time scoring, analytics, and comprehensive test management serving 1000+ test takers.

A comprehensive full-stack SaaS platform that revolutionizes content creation through AI integration, automated workflows, and collaborative tools for content creators and marketing teams.

Led the migration of Neutrogena's website to Contentful headless CMS as part of Kenvue's global DXP initiative, managing a cross-functional team and ensuring brand compliance.
Recognition & Achievements
Professional certificates, awards, and recognition from my career at SJ Innovation

Performer of the Month - September 2021
SJ Innovation LLC
Recognized for exceptional performance and dedication in September 2021

Performer of the Month - December 2022
SJ Innovation LLC
Awarded for outstanding contribution and exceptional performance in December 2022

Performer of the Month - June 2024
SJ Innovation LLC
Recognized for exceptional leadership and technical excellence in June 2024
What others say
Testimonials.
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@ Madhav Ranganekar
COO, SJ Innovation LLC
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@ Caesar D'Silva
Project Manager, SJ Innovation LLC
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@ Pranav Ashok Rivankar
Jr. Software Project Coordinator L2, SJ Innovation LLC
If you have any projects in mind!