Bala Hariharan

Full Stack Developer with 1+ year of experience designing and building scalable web applications using React.js, TypeScript, Node.js, and Express.js. Skilled in developing RESTful/JSON APIs, optimizing database queries (MongoDB, MySQL), implementing JWT-based authentication and role-based access control, and collaborating with UI/UX teams on pixel-perfect, responsive interfaces. Strong foundation in Git-based version control, code reviews, debugging, and writing clean, reusable, maintainable code with a focus on performance and scalability.

Full Stack Developer at Clazn (2026-01 – Present)

• Develop and maintain full-stack web applications using React.js, Node.js, Express.js, and MongoDB, ensuring clean and reusable code architecture.
• Collaborate with cross-functional and UI/UX teams to design and implement new product features with pixel-perfect, responsive layouts.
• Build and integrate RESTful/JSON APIs with third-party services to support core business workflows.
• Participate in code reviews, debugging, and testing to follow best coding practices and improve application performance.

MERN Developer at Digitaly AI Solution (2024-10 – 2025-11)

• Designed and built secure RESTful APIs using Node.js and Express.js for HRMS, eCommerce, and Invoice Management systems, optimizing database queries for efficient data flow.
• Implemented JWT-based authentication with role-based access control (RBAC) for multi-user systems including HRMS and Admin Dashboards, strengthening session security.
• Engineered and optimized scalable MongoDB schemas using Mongoose for modules such as employee records, product listings, and billing history.
• Integrated backend APIs with React.js frontends to deliver seamless full-stack experiences for Invoice Tracker and HR Workflow Manager platforms.
• Debugged and resolved technical issues across the stack, contributing to maintainable and scalable production code.

Frontend Development Intern at Nxweb (2024-05 – 2024-07)

• Supported frontend development on client and internal projects using React.js, HTML5, CSS3, and JavaScript.
• Created and optimized reusable UI components, reducing development time by 30% and improving code maintainability.
• Enhanced UI/UX by implementing fully responsive layouts using Tailwind CSS and Material UI across 15+ web projects.
• Gained hands-on experience with Git version control, debugging, testing, and feature rollout workflows.

Master of Computer Applications in Computer Applications – J.J. College of Arts and Science (Autonomous) (2023 – 2025)

Bachelor of Commerce – Computer Applications in Computer Applications – Vidhya Giri College of Arts and Science (2020 – 2023)