Gunasekaran SelvarasuSenior Fullstack Developer
Architecting end-to-end fullstack platforms with React.js, Next.js (SSR), Node.js, TypeScript, and MongoDB/MySQL databases. 5+ years of delivering enterprise-grade SaaS, secure API services, and cloud-native solutions.
Fullstack Technical Arsenal & Cloud Stack
End-to-end expertise spanning modern React & Next.js UI systems, robust Node.js backend services, relational/NoSQL datastores, secure JWT/OAuth auth, and AWS cloud infrastructure.
Frontend & UI Systems
React, Next.js (SSR), TypeScript, Tailwind & UI Frameworks
Crafting reactive, high-performance interfaces with React.js and Next.js SSR. Experienced building design-system scale components with Tailwind CSS, Material UI, and Ant Design with rigorous TypeScript typing.
AWS Certified
Cloud Practitioner
Amazon Web Services (AWS)
Backend & Databases
Node.js, Express, MongoDB, MySQL & SSR
Auth & Security
JWT, OAuth 2.0, OTP & Gateways
Secure token signing, refresh rotation & middleware
Third-party authorization (Google, GitHub)
Multi-factor login flows and SMS/Email verification
RazorPay & PayPal webhooks with idempotency
Cloud Infrastructure & DevOps
AWS Deployment, CDN Acceleration & CI/CD Pipelines
Deploying production fullstack architectures on AWS with auto-scaling compute (EC2), scalable storage (S3), global low-latency CDN distribution (CloudFront), secure DNS routing (Route 53), and automated deployment pipelines via GitHub Actions.
Professional Journey & Experience
5+ years of delivering end-to-end fullstack platforms, designing scalable Node.js/Express APIs, modeling databases, and orchestrating cloud systems.
Led engineering squads delivering fullstack TypeScript web applications, scalable Node.js/Express REST microservices, and modular React/Ant Design frontends.
- Headed full-stack squads, mentoring engineers on end-to-end TypeScript, Node.js API best practices, and clean architecture.
- Designed and integrated resilient RESTful microservices using Node.js, Express, and MongoDB, optimizing database querying and data pipelines.
- Implemented secure stateless authentication using JWT and OAuth 2.0 with automated token refresh cycles and role-based permissions.
- Established modular React + TS enterprise architectures using Ant Design & Tailwind CSS, boosting development cycle velocity by 30%.
- Spearheaded state management pipelines using Redux Toolkit to seamlessly synchronize real-time data flows between client and backend.
Featured Projects & Case Studies
A curated list of enterprise software platforms, production-ready SaaS dashboards, and scalable e-commerce systems.
Asian School of Business (ASB)
Enterprise educational platform supporting academic portals, dynamic course scheduling, and real-time student dashboards.
Robust Next.js App Router with Server-Side Rendering (SSR), typed Node.js/Express API services, JWT stateless authentication, and Redux Toolkit state sync.
Meii AI Platform
Sophisticated AI analytics dashboard displaying predictive charts, model metrics, and automated conversational prompts.
Engineered with React.js and comprehensive Ant Design (AntD) design systems, backed by Node.js REST services and AWS S3 model artifact storage.
Commercial Billing / POS / Inventory Platform
Comprehensive billing, POS, and inventory management platform handling real-time stock deductions, invoice generation, and financial analytics.
React TypeScript frontend styled with Material UI (MUI), communicating with a high-performance backend with MongoDB aggregation pipelines and indexing.
RadPrix E-Commerce
A premium, high-availability fashion storefront featuring automated inventory synchronization, smart search, and optimized checkout flow.
Powered by Next.js Server Components, relational MySQL order schema, Tailwind CSS styling, auto-scaling EC2 instances, and dual RazorPay/PayPal gateways.
Velaan Mandi B2B Marketplace
Agricultural digital marketplace connecting local farming communities directly with wholesale vendors, providing real-time pricing indicators and demand metrics.
Engineered using Next.js Server-Side Rendering (SSR) for dynamic catalog loading, backed by scalable relational MySQL datastores and secure RazorPay payment verification.
GS Audit Report System
Real-time auditing dashboard capturing system logs, generating comprehensive PDF files, and securing admin operations with multi-factor tokens.
Fullstack application utilizing Material UI (MUI) components, Node.js backend endpoints, OTP/MFA authentication, and AWS S3 secure report storage.
Sofa33 Customizer
Interactive high-end home furnishing store featuring virtual 3D customization logic, smart freight estimates, and responsive product previews.
Assembled utilizing responsive React states, Node.js API handlers, Redis caching layers, and PayPal international checkouts with automated webhooks.
Dgiverse Web Application
Fast-loading marketing and business portal engineered for high-speed search engine indexing, SSR performance, and responsive scaling.
Next.js SSR architecture with static path generation, search optimized indexing headers, and custom Material UI (MUI) design layouts.
Tradewave International
Global trading and import-export catalog portal supporting inquiry channels, products directory, and logistics checklists.
Built with fullstack MVC architecture, PHP/Laravel controllers, and relational MySQL schemas with localized indexing.
Zova Canteen
Production food ordering platform for a corporate canteen with dynamic ordering, cart management, and inventory tracking.
Fullstack architecture featuring a Node.js and Express backend, relational MySQL database, and responsive frontend UI.
HireMe Recruitment Platform
Custom recruitment and talent placement portal facilitating resumes indexing, vacancy updates, and candidate assessment pipelines.
React.js SPA with Material UI and Tailwind CSS, integrating JWT authentication, candidate evaluation workflows, and paginated API queries.
Touchmark Descience Agency
Interactive corporate portfolio website for a creative design agency, focusing on premium branding, smooth scroll dynamics, and responsive grid layouts.
Built with React.js, Custom CSS Animations, and Framer Motion. Engineered for low-latency graphics loading and high accessibility scores.
SriMurugan Hardwares
Comprehensive product catalog and corporate site for a large retail hardware and machinery merchant.
Custom WordPress configuration with relational MySQL schema tuning, customized child theme, and search indexing.
Rupinis
Corporate website for a premium beauty salon chain, detailing services catalogs, location mapping, and booking links.
WordPress child-theme customization, responsive typography, media loading optimizations, and localized SEO plugins.
Raincentre
Information and resources hub for an environmental NGO specializing in rain-water harvesting initiatives and public education programs.
WordPress CMS structure, accessibility-focused grids, and optimized asset hosting to deliver low-bandwidth resources.
Education & Qualifications
Academic foundation of computer applications, algorithm structures, and web technologies.
Master of Computer Applications (MCA)
E.G.S. Pillay Engineering College (Autonomous)
Bachelor of Computer Applications (BCA)
E.G.S. Pillay Arts and Science College
Leadership & Interpersonal Strengths
Core philosophies for cultivating collaborative engineering culture and accelerating software deliverables.
Fullstack Squad Leadership
Headed engineering squads delivering end-to-end features across React/Next.js frontends and Node.js microservices.
Mentoring & Engineering Culture
Mentored developers on clean TypeScript patterns, Node.js API standards, and database schema optimizations.
Architecture & Code Reviews
Instituted coding standards, API contract reviews, security checks (JWT/OAuth), and performance audits.
Cross-Functional Delivery
Aligned product managers, UI/UX designers, and DevOps engineers to ship reliable SaaS solutions on AWS.
Get In Touch
Let's collaborate on fullstack web applications, scalable backend APIs, SSR platforms, or cloud infrastructure setups.