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I'mKarthikeyan M,

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Karthikeyan Profile

Why Hire me?

Senior Full Stack Engineer with 4+ years of experience building scalable web applications across e-commerce and enterprise domains. Proficient in building high-performance architectures using React.js, Node.js, Python (FastAPI), and Laravel. Adept at integrating complex third-party APIs (OpenAI, Shopify, Stripe) and leveraging AI-assisted development tools (Claude Code, Antigravity) to accelerate release cycles, with a proven track record of optimizing system performance and collaborating in Agile/Scrum environments.

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Years of Experience

0

Project Completed

My Technical Skills

React.jsNext.jsTypeScriptJavaScript (ES6+)HTML5CSS3Tailwind CSSNode.jsExpress.jsPythonFastAPIPHPLaravelMySQLPostgreSQLRedisGitGitHubOWASP security practicesClaude CodeGitHub CopilotAntigravityAPI Gateway DesignMVC architectureJWT Authentication

Awesome Journey

Senior Software Engineer

Architecting full-stack applications using Laravel and FastAPI. Implemented an abandoned cart recovery system with coupon offers, recovering 18% of abandoned orders. Integrated Stripe payments and reduced disputes by 15% through robust error handling.

ISYS Technologies, Chennai

Sep 2025 - Present

Full Stack Developer

Architected B2B/B2C transport booking platform (Laravel + Node.js + MySQL) handling 10K+ daily transactions. Developed order management and invoice generation modules improving operational efficiency by 25%. Collaborated in agile environments to deliver high-quality features.

Clarity TTS, Chennai

Feb 2025 - Jul 2025

Software Engineer

Built e-commerce platform with (Laravel + Vue.js + Node.js + PostgreSQL) improving conversion rates by 15%. Integrated Google Ads and AI automation, cutting manual work by 200+ hours monthly. Mentored junior developers on Laravel and architecture patterns.

Constient Global Solutions, Chennai

Aug 2022 - Oct 2024

Junior Developer

Launched members portal with Laravel + Vue.js + React.js improving engagement by 2x. Collaborated with teams to gather requirements and deliver timely solutions. Implemented responsive design patterns across major applications.

Vaagai Tecknowledge, Virudhunagar

Jun 2021 - Jul 2022

My Projects

React Games Platform

React Games Platform

React Games Platform

Interactive gaming platform with 10+ games. Showcases advanced state management, custom hooks, and fully responsive layouts.

React.jsTypeScriptTailwind CSS
Developer Portfolio

Developer Portfolio

Developer Portfolio

Modern personal portfolio with project showcase, dark mode, and analytics. Optimized for performance and SEO, built on Next.js.

Next.jsTypeScriptTailwind CSSVercel
Create Express Project (npm Package)

Create Express Project (npm Package)

Create Express Project (npm Package)

Production-ready Express.js CLI scaffolding tool that generates boilerplate code, structured folders, and custom configurations for rapid backend setup.

Node.jsnpmMVC ArchitectureJavaScript

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