Karikalan .r
Full Stack Developer (MERN) | 2 Years Experience | React.js • Node.js • MySQL • MongoDB
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About
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.
Experience
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.
Education
Bachelor of Engineering - Computer Science & Engineering - Parisutham Institute of Technology and Science
