Software Engineer with 1+ year in Java, JavaScript, Node.js, React.js, Spring Boot & REST APIs.

github

Izan Ahmad • Peerlist

<ul><li>Built and deployed VYARA, a production multi-tenant shop management SaaS using Next.js, Node.js, Express.js, and PostgreSQL. </li><li>Developed 39 REST API endpoints for inventory management, billing, payments, and invoicing. </li><li>Designed an 8-table PostgreSQL database schema with 17 indexes and implemented row-level locking to prevent stock inconsistencies during concurrent sales. </li><li>Implemented JWT authentication with email verification, password reset, session revocation, and tenant-scoped API access. </li><li>Built invoice PDF generation and date-range reports with server-side pagination, search, and filtering. </li><li>Deployed the application to production with a focus on secure API design, database reliability, and scalable multi-tenant architecture.</li></ul>

VYARA — Multi-Tenant Shop Management SaaS

<ul><li>Built a mobile-first expense tracking application using React Native, Spring Boot, Spring Data JPA, and PostgreSQL. </li><li>Developed 5+ REST APIs for managing transactions, expense categories, and monthly summaries. </li><li>Implemented backend services with Spring Boot and Spring Data JPA for reliable transaction and expense management. </li><li>Designed the application for a mobile-first experience with a PostgreSQL-backed data layer.</li></ul>

MoneyMap

<ul><li>Built and deployed a full-stack MERN food ordering application with JWT authentication, role-based admin access, Razorpay payments, and order management. </li><li>Developed a responsive food ordering platform serving 30+ users. </li><li>Implemented JWT and bcrypt authentication with role-based access control for administrators. </li><li>Integrated Razorpay for online payments and implemented order management workflows.</li></ul>