Senior Mern Developer with 4+ years in full-stack web application development.
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MERN Stack Developer with 4+ years of experience building scalable, production-grade web applications using React.js, Node.js, Express.js, and MongoDB. Proven track record delivering enterprise payment platforms, RESTful APIs, and role-based access systems. Skilled in TypeScript, Redux, JWT authentication, AWS deployment, and MongoDB aggregation pipelines. Passionate about writing clean, maintainable code and collaborating in Agile teams to ship high-quality full-stack solutions.
Kalasalingam Institute of Technology
Bachelor of Engineering (EEE) · Electrical and Electronics Engineering
August 1, 2012 – June 30, 2016
Foster Technologies Private Limited
MERN Stack developer
January 1, 2022 – Present
Bengaluru, Karnataka, India
Global Payment & Merchant Management Platform (Adyen Client)
January 1, 2022 – June 30, 2026
Developed a responsive full-stack web application using React.js, Bootstrap, and modern JavaScript (ES6+), implementing component-based architecture, reusable functional components, and React Hooks to improve performance and maintainability. Architected and delivered 15+ RESTful APIs using Node.js and Express.js with modular routing, middleware layers, and centralized error handling reducing average API response time by 30% through backend query optimization. Integrated Adyen Checkout APIs and Webhooks, ensuring asynchronous payment confirmation, idempotency handling, and fraud-safe processing. Built responsive React.js merchant dashboards (using Hooks, Context API, and Axios) displaying real-time transaction status, settlement reports, and risk analytics supporting 500+ active merchants. Implemented JWT-based RBAC system supporting 4 user roles (Admin, Merchant, Finance, Support) with route-level authorization middleware, reducing unauthorized access incidents to zero post-deployment. Designed MongoDB schemas and multi-stage aggregation pipelines for high-volume payment transaction data; applied compound indexes to cut query execution time by ~40% on collections with 1M+ records. Performed debugging, testing, and performance optimization to ensure high application stability, responsiveness, and security. Handled complex state management issues in React applications by restructuring components and using Context API and custom hooks to reduce prop drilling and improve maintainability. Resolved API performance and response-time issues by optimizing backend logic, improving query handling in MongoDB, and implementing proper request validation and error handling. Debugged and fixed JWT authentication failures, including token expiration and authorization issues, to ensure secure access to protected routes across the application. Managed asynchronous data flow challenges on the frontend by implementing proper loading states, error boundaries, and retry mechanisms using Axios and async/await.
Bus Ticket Application
January 1, 2022 – June 30, 2026
Developed a full-stack bus ticket booking system using MongoDB, Express.js, React.js, and Node.js. Implemented real-time seat selection and booking functionality. Designed responsive UI for seamless user experience across devices. Built RESTful APIs for route management, booking, and user operations. Prevented double booking using backend validation and state synchronization. Ensured data consistency with efficient database operations.
Authentication & Role-Based Access System
January 1, 2022 – June 30, 2026
Designed and implemented secure JWT-based authentication system. Developed middleware for route protection and role-based authorization. Secured APIs by validating tokens and handling token expiration. Restricted access to sensitive endpoints based on user roles. Improved application security by preventing unauthorized access.
Cultural Fit Analysis
The candidate's experience with enterprise payment platforms and role-based access systems aligns well with complex, security-sensitive projects, indicating a good fit for organizations requiring robust and scalable solutions. The project diversity, though limited to MERN stack, shows depth within that ecosystem. The explicit mention of Agile methodologies suggests adaptability to modern development practices. The target role of 'Senior Mern Developer' is a direct match for the candidate's stated skills and experience.
Soft Skills & Operational Fit
The candidate's resume highlights collaboration in Agile teams and a passion for writing clean, maintainable code, suggesting a good operational fit. The detailed project descriptions indicate a problem-solving mindset and attention to application stability and security. However, without specific psychometric or communication test results, a deeper assessment of soft skills like stress handling, logical reasoning, and team collaboration is not possible.