Hello, I'm

Thamil Alagan R

Web Developer  |  MERN  |  UI Developer

Building scalable web applications, Shopify apps, and API-driven platforms with 2.4 years of professional experience in high-growth environments.

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2.4+
Years Exp.
Resume
About

ABOUT ME.

Web Developer with 2.5 years of experience building high-performance web applications using React.js, Node.js, and MongoDB. Specialized in developing custom Shopify apps, integrating Shipping APIs (FedEx, UPS), WhatsApp Business API, and building scalable deployment and API-proxy solutions.

Passionate about crafting seamless user experiences through clean, maintainable code. I thrive in Agile environments where I collaborate with cross-functional teams to deliver impactful, production-ready solutions.

Currently architecting enterprise integrations at LA Confianza Technologies — building real-time systems and automated pipelines for growing e-commerce businesses.

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Skills

Competencies

⚡

Frontend

  • React JS
  • React Native
  • JavaScript
  • TypeScript
  • Tailwind CSS
  • HTML / CSS
  • Webflow
🔧

Backend

  • Node JS
  • Express JS
  • REST APIs
  • GraphQL
  • MongoDB
🛠

Tools / Additional Libraries

  • Git / GitHub
  • MongoDB Atlas
  • Postman
  • Axios
  • React Router
Work

Professional Projects

Engineering Enterprise Solutions — Built at Company

LA Confianza Tech
Sendoship — Shopify Shipping App
View Live
// Overview

Custom Shopify application integrating FedEx and UPS APIs for real-time shipping rate calculation and shipment creation directly from the merchant's store.

// Key Contributions
Developed FedEx frontend rate forms
Built shipping rate calculator
Integrated Polaris UI (LTS APIs)
Implemented UPS API as backup
Deployed using Shopify CLI
Replicated shipping logic from Shopify
Impact: Enabled merchants to automate shipping calculations and reduce manual rate lookups directly from Shopify.
Node JSReact JS Express JSMongoDB PrismaShopify FedEx APIUPS API
LA Confianza Tech
Pingcart — WhatsApp Business Shopify App
View Live
// Overview

Shopify app enabling automated WhatsApp notifications across the full customer order lifecycle — from confirmation to delivery — improving merchant-customer engagement at scale.

// Key Contributions
Built automation flow for order notifications
Manages WhatsApp through vendor UIs
Designed messaging template system
Multi-language customer support
Implemented real-time webhook integration
Reduced need for manual customer follow-up
Impact: Fully automated order-to-delivery WhatsApp messaging, enabling better customer communication and increased merchant satisfaction.
React JSShopify Polaris Node JSExpress WhatsApp Business APIREST APIs
Squash Apps Pvt Ltd
Education Portal
ś View Live
// Overview

Online education portal facilitating seamless and interactive learning experiences for students and educators.

// Key Contributions
Developed and implemented the full portal frontend
Added TypeScript for code reliability and maintainability
Built interactive learning modules with React.js
Integrated REST APIs for dynamic content delivery
Impact: Enabled seamless digital learning experiences for students and educators.
React JS Typescript REST APIs
Squash Apps Pvt Ltd
Hospital Management System
ś View Live
// Overview

Comprehensive hospital management system for managing patient records, appointments, and medical history.

// Key Contributions
Leveraged React to create a highly responsive and interactive interface
Efficiently managed patient records, appointments, and medical history
Combined Redux, Thunk middleware, and Redux Toolkit for effective state management
Added TypeScript for reliability and maintainability
Impact: Facilitated seamless patient care and improved overall hospital operational satisfaction.
React JS Node JSExpress REST APIs Redux
Career

Work Experience

OCT 2024 – PRESENT
Full Stack Developer
LA Confianza Technologies
  • Built and deployed Shopify applications with FedEx/UPS shipping integrations
  • Built and deployed 4 MERN applications from scratch to production
  • Integrated third-party APIs including AWS Lambda, WhatsApp Business, and ShipStation
  • Improved test coverage by 40% through comprehensive unit and integration testing
JULY 2023 – OCT 2024
Frontend Developer
Squash Apps pvt ltd
  • Developed front-end in Commerce using React.js & TypeScript
  • Developed and led a MERN full-stack solution for client delivery
  • Improved modern UX practices in e-commerce and financial products
  • Mentored junior developers in frontend architecture and component design patterns
Side Work

Personal / Open Source

Curated work — Contributions and independent projects

🛠 Shopify FedEx Rate Extension

Open-source Shopify checkout extension for dynamic FedEx rate fetching. Handles weight-splitting and zone detection automatically.

📦 WhatsApp Order Notifier

Node.js microservice for automated WhatsApp order lifecycle messages. Template-driven with multilingual support and webhook processing.

📊 MERN Analytics Boilerplate

Starter kit with React + Redux Toolkit + Node + MongoDB with Docker Compose and GitHub Actions CI/CD pre-configured.

Let's Talk

Get In Touch

Have a technical challenge or an enterprise-scale project in mind? Let's discuss your roadmap and build something resilient.

✉️
🔗
📍
Location
Coimbatore, India