Renganayaki Subbiah

Full Stack Developer (MERN)

Specializing in Next.js, React, Node.js, MongoDB, and Cloud Technologies

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Professional Summary

With over 7 years of experience as a Full Stack Developer, I specialize in the MERN stack (MongoDB, Express.js, React.js, Node.js) and Next.js for building high-performance, SEO-optimized web applications.

  • Expertise in AWS and Azure for deploying and managing applications, setting up CI/CD pipelines, and leveraging cloud services like EC2, S3, and Azure Blob.
  • Delivered end-to-end e-commerce solutions for fashion retail, including catalogs, checkout flows, and payment integrations.
  • Built SaaS products for automotive clients, creating dealer-facing storefronts and dynamic vehicle inventory systems.
  • Proficient in RESTful API development, secure authentication (JWT, RBAC), and MongoDB data modeling.
  • Skilled in React Hooks, Redux, and Tailwind CSS for responsive, scalable front-end architecture.
  • Focused on clean code, performance optimization, and Agile methodologies.

Built Projects

E-commerce Platform for Fashion Retail

Freelance, 2023-2025

Developed end-to-end e-commerce solutions with Next.js, Node.js, and MongoDB. Features include server-side rendered product listings, cart and checkout flows, and payment integrations with Stripe and Adyen. Optimized for SEO and performance with code-splitting and lazy loading.

Technologies: Next.js, React, Node.js, Express, MongoDB, Stripe, Adyen, AWS S3

Automotive SaaS for Dealer Storefronts

Freelance, 2023-2025

Built dealer-facing SaaS platforms with vehicle inventory sync, dynamic product pages, and admin dashboards. Integrated with DMS/CRM systems for real-time stock updates and implemented vehicle configurators with dynamic pricing and finance calculators.

Technologies: Next.js, React, Node.js, Express, MongoDB, AWS, Redux

E-commerce Web App for Rajaa Studio

2019-2020

Developed a scalable e-commerce platform using the MERN stack, integrating Redux for state management and AWS Route 53 for DNS management. Built product catalog management and secure payment gateways for seamless user experience.

Technologies: React, Node.js, Express, MongoDB, Redux, AWS Route 53

Professional Experience

Full Stack Developer (MERN + Next.js) - Infoston Systems Pvt. Ltd.

Sep 2020 – Present

  • Developed responsive, SEO-optimized web apps using Next.js and React.js with Tailwind CSS.
  • Built RESTful APIs and microservices with Express.js, implementing JWT-based authentication.
  • Managed MongoDB schemas, optimized queries, and set up CI/CD pipelines on AWS and Azure.
  • Integrated payment gateways (Razorpay, PayPal) and third-party services (Twilio, AWS S3).

Freelance Full-Stack (MERN) Developer - UK and Europe Clients

Feb 2023 – Jul 2025

  • Built e-commerce platforms with Next.js, Node.js, and MongoDB, focusing on SSR and SEO.
  • Designed product catalog models and implemented cursor-based pagination for large datasets.
  • Developed vehicle configurators and admin dashboards for automotive clients.
  • Optimized performance with code-splitting, lazy loading, and query tuning.

Full Stack Developer (MERN) - Rajaa Studio

Jun 2019 – Aug 2020

  • Developed e-commerce web apps with MERN stack, integrating Redux for state management.
  • Built and tested RESTful APIs using Node.js, Express.js, and Postman.
  • Managed DNS records with AWS Route 53 for reliable domain routing.

Junior Web Developer - Uniq Technologies

Jun 2018 – May 2019

  • Designed responsive websites using HTML, CSS, Bootstrap, and JavaScript ES6.
  • Developed backend logic with PHP and MS SQL Server, creating RESTful APIs.
  • Implemented database schemas and optimized SQL queries.

Technical Skills

Frontend

HTML, CSS, JavaScript, Bootstrap, Tailwind CSS, React.js, Next.js, React Hooks, Redux

Backend

Node.js, Express.js, RESTful APIs

Database

MongoDB, PostgreSQL

Cloud

AWS (EC2, S3, Lambda, Amplify, CodePipeline, Route 53), Azure (Blob, VM, Workspace)

Tools & Others

Git, GitHub, GitHub Actions, Maven, Nginx, Postman, JUnit

Security & Methodologies

JWT, OAuth, RBAC, Agile

Education

Bachelor of Engineering (Computer Science)

Anna University, Chennai | 2014 – 2018

Get in Touch

Phone: +91-7010712137

Email: renganayakisubbiah@gmail.com

LinkedIn: linkedin.com/in/renganayaki-subbiah

References available upon request.