Jaisan P

- Designed and developed end-to-end web applications using React-js and Node.js. - Built and integrated RESTful APIs to support dynamic content - Developed scalable backend systems with MongoDB/MySQL, ensuring optimized data storage and retrieval - Implemented JWT-based authentication, role-based access control, and secure API endpoints. - Worked with third-party APIs and handled payment gateways, email services, and cloud deployments - Maintained code versioning using Git and participated in Agile/Scrum sprints for regular delivery

Projects

Digi Gold | FinTech E-Commerce Platform

Technology: React.js, Node.js, Socket.io, Razorpay, MySQL, JWT
Roles & Responsibilities:

• Engineered a scalable full-stack architecture for digital gold trading, enabling real-time transactions using Socket.io and dynamic gold price updates.
• Integrated Razorpay payment gateway with JWT/OAuth 2.0 for secure transactions and compliance with financial regulations (PMLA/KYC).
• Designed RESTful APIs in Node.js to handle user wallets, redemption workflows, and admin dashboards.
• Optimized MySQL queries and indexing, reducing API response time by 40% for high-traffic scenarios.
• Deployed on AWS EC2 with auto-scaling groups and S3 for document storage (e.g., user KYC).

PMLA Screening App | Compliance & Identity

Technology: React.js, Node.js, MySQL
Roles & Responsibilities:

• Developed a high-performance React UI for bulk document uploads, facial recognition, and OTP-based identity verification.
• Integrated third-party AML/KYC APIs (e.g., Digio, Signzy) to automate user onboarding while ensuring regulatory compliance.
• Implemented role-based access control (RBAC) for secure data handling and audit logging.
• Optimized MySQL stored procedures to process 10K+ records/hour for compliance reporting.
• Hosted on AWS Lambda for serverless document processing and CloudFront for low-latency global access.

HRMS | Human Resource Management System

Technology: Node.js, React.js, MySQL, JWT
Roles & Responsibilities:

• Spearheaded end-to-end development of an HRMS with modules for attendance, payroll, and tax automation.
• Implemented JWT-based authentication and RBAC to restrict sensitive data (e.g., salaries) to authorized roles.
• Automated monthly payroll workflows with PDF payslip generation using Node.js libraries (PDFKit).
• Reduced payroll processing time by 60% by optimizing MySQL joins and transaction batches.

Task Management App | Productivity Tool

Technology: MERN Stack (MongoDB, Express.js, React.js, Node.js)

Roles & Responsibilities:

• Designed a dynamic task prioritization algorithm (weighted by deadlines, workload) to auto-schedule user tasks.
• Achieved 40% fewer missed deadlines via real-time alerts (WebSockets) and calendar sync (Google API).
• Built aggregation pipelines in MongoDB to generate productivity analytics
• Used Firebase Auth for secure sign-in and AWS S3 for task attachment storage

School Studio | School Management System

Technology: React.js, ES5, Bootstrap, REST APIs
Roles & Responsibilities:

• Developed a centralized school management dashboard with React.js for attendance, payroll, and student records.
• Modernized legacy ES5 codebase to React hooks, improving maintainability by 30%.
• Integrated REST APIs (Node.js backend) for real-time data sync across 10+ school branches.
• Hosted on AWS Lightsail with automated backups for MySQL databases.

- Designed and developed end-to-end web applications using HTML, Bootstrap and PHP. - Developed responsive development - Worked with JQery and different libraries - Maintained code versioning using Git and participated in Agile/Scrum sprints for regular delivery.

Dewdrops & WebZoneQatar | Event Management & Web Solutions

Technology: PHP, MySQL, jQuery, Bootstrap
Roles & Responsibilities:

• Delivered 10+ client websites with responsive designs, PHP backends, and MySQL-driven content.
• Built custom APIs for event booking, payment gateways (e.g., Stripe), and email notifications (SendGrid).
• Secured applications against SQL injection/XSS via parameterized queries and input sanitization.
• Deployed PHP apps on AWS Elastic Beanstalk with RDS for scalable database management.