Mohanapriya Thirumurugan

I am a Junior Software Engineer with 1.5+ years of experience building web applications using the MERN stack, currently looking for new opportunities. I have worked on secure authentication systems, RESTful APIs, real-time communication with WebSockets, and SQL database performance. I am comfortable with React Hooks, Redux, and responsive UI development, and have worked in Agile teams using Git and Postman

Junior Software Engineer at AUKBC Research Centre (2024-10 – Present)

• Built and maintained a web-based data annotation tool used by 50+ annotators, supporting concurrent usage with role-based dashboards for annotators and project managers.
• Developed and integrated a secure authentication system with JWT tokens and role-based access control (RBAC), managing login sessions, protecting routes with custom middleware, and handling user registration flows end-to-end.
• Designed and implemented dynamic table column management on both frontend (React) and backend (SQL/Express), enabling project managers to add left and right columns to annotation datasets without schema changes.
• Built RESTful APIs with Express.js to handle complex CRUD operations for annotation records, with proper HTTP status codes, input validation, and error handling across all endpoints.
• Worked directly with client feedback in an agile bug-fix cycle — triaging reported errors, reproducing issues across environments, and deploying fixes rapidly to maintain workflow continuity.
• Optimized SQL query performance through indexing and query restructuring, improving data retrieval speed for annotation datasets exceeding 10K records.
• Integrated real-time communication via Socket.io between annotators and project managers for instant status updates without page refresh.

Frontend Developer Intern at Webion (2024-07 – 2024-09)

• Developed responsive user interfaces for language annotation tools using React.js, implementing mobile-first design with CSS Flexbox and Grid for cross-device compatibility.
• Mastered component lifecycle management, props drilling solutions, custom hooks, and API integration with Axios.
• Collaborated in Agile sprints with cross-functional teams, participating in code reviews and implementing feedback to maintain code quality standards.

Bachelor of Engineering in Electronics & Communication Engineering – Jeppiaar Engineering College, Anna University (2019-07 – 2023-06)