Karikalan .r

Full Stack Developer with 2 years of experience designing and shipping production MERN applications — including a JWT-secured real estate platform with role-based dashboards and a full e-commerce system deployed via CI/CD on DigitalOcean. Strong in React.js, Node.js/Express, MySQL, and MongoDB, with end-to-end ownership from schema design through deployment. Comfortable working independently in Agile teams and looking to bring that same ownership to an international engineering team.

Full Stack Web Developer (MERN) - AJ Info Tech - Jayankondam, India

(2024-01 - 2026-02)

• Built responsive web apps in React.js using reusable components and Hooks (useState, useEffect, useContext), cutting duplicate UI code across modules by an estimated 30%.
• Designed and shipped 20+ RESTful API endpoints in Node.js/Express following MVC architecture, covering product management, user management, and order processing workflows.
• Implemented JWT-based authentication with RBAC across all API routes, using custom middleware and bcrypt password hashing to secure user and admin access.
• Restructured MySQL schemas and added targeted indexes on high-traffic queries, reducing average query response time and page load time.
• Set up CI/CD pipelines with GitHub Actions and DigitalOcean, cutting manual deployment steps and reducing release errors.
• Took part in Agile sprint planning, peer code reviews, and debugging sessions, consistently delivering features on schedule.

Bachelor of Engineering - Computer Science & Engineering - Parisutham Institute of Technology and Science