Software Engineer | Agile Soft System Inc

SiteOne (Real Estate) - Backend

ASP.NET Core Web API, Razorpay, JWT, PostgreSQL, Multi-Tenancy, AWS S3

• Architected and maintained RESTful APIs for property listings, user management (RBAC for Super Admin, Homeowner, Subcontractor), and payment integration.
• Integrated Razorpay payment gateway with webhook verification for transaction reliability; implemented multi-tenant data isolation via schema-based separation.
• Designed JWT authentication with refresh token rotation; managed file storage on AWS S3 (pre-signed URLs for secure document uploads).
• Optimized SQL queries reducing API response time by 30%; collaborated with frontend for seamless contract integration.

Software Engineer | Agile Soft System Inc

SiteOne (React Frontend)

• Built reusable component library (Class + Functional components) with Context API for global state, reducing code duplication by 40%.
• Implemented role-based UI rendering; integrated S3 upload with polling mechanism to track file upload status in real-time.
• Enhanced performance via lazy loading, code splitting, and memoization; delivered fully responsive design across devices.
• Wrote unit tests using Jest & React Testing Library ensuring 85% coverage.

Software Engineer | Agile Soft System Inc

Party Track (Full-Stack: ASP.NET Core + React)

ASP.NET Core Web API, Stripe, JWT, PostgreSQL, React, Redux Toolkit, AutoMapper

• Invoice & Billing Engine: Designed complete RESTful APIs for invoice generation, line-item billing, tax calculations, and PDF export using iTextSharp. Implemented automatic invoice numbering, status tracking (Paid/Pending/Overdue), and advanced filtering.
• Authentication & Security: Built JWT authentication with refresh tokens, role-based access control (Admin, Finance, Viewer), and BCrypt password hashing. Implemented audit logs for sensitive operations.
• Stripe Integration: Integrated Stripe Checkout Sessions and Webhooks for one-time payments and subscription billing. Implemented idempotency keys to prevent duplicate charges and built reconciliation jobs for payment verification.
• Backend Excellence: Created dynamic filtering, pagination, sorting using LINQ; built background services (IHostedService) for overdue invoice reminders (email alerts via SendGrid). Used DTOs and AutoMapper for clean API contracts.
• Testing & Docs: Wrote xUnit & Moq unit tests (80% coverage); documented APIs with Swagger/OpenAPI; ensured GDPR compliance for billing data.

Party Track (React Frontend)

React, Tailwind CSS, Redux RTK Query, Stripe Elements

• Developed 20+ reusable components; utilized RTK Query for API caching, auto-refetching, and optimistic updates reducing network calls by 35%.
• Integrated Stripe Elements for payment UI (card input, payment confirmation) and built real-time invoice dashboard with Chart.js.
• Implemented export to CSV/PDF on frontend; wrote comprehensive unit tests with Jest & React Testing Library.
• Ensured WCAG 2.1 accessibility and fully responsive design across all devices.

Canteen Admin Panel

React, Context API, SheetJS (Excel Export)

• Designed token-based authentication with private routes; managed global auth state using Context API.
• Built dynamic data view with filters (daily/weekly/monthly) and structured tables; integrated Excel export using SheetJS for offline reporting.
• Optimized data fetching with debounced search and pagination.

Quickbooks Eazyconnect

Node.js, Express, PostgreSQL, React, OAuth2

• Built full-stack integration to sync invoices & customers from Intuit QuickBooks to Monday.com boards using OAuth2 flows.
• Developed REST APIs in Node.js/Express; used PostgreSQL for reliable data storage and scheduled sync jobs (node-cron).
• Created React dashboard with real-time sync status and conflict resolution UI.

Innovatix - AI / Church Platform

Node.js, Stripe, PostgreSQL, Sequelize, OpenAI API

• Developed Stripe payment module for recurring donations and one-time payments with webhook handling.
• Implemented multi-tenancy architecture using Sequelize (PostgreSQL) for isolated church/organization data.
• Integrated OpenAI API for AI-driven sermon recommendations and automated content workflows.
• Designed CRUD operations with advanced filtering and transaction management.

WWI (World Wide Information)

React, AWS S3, Polling, RBAC, Custom Hooks

• Implemented multi-tenancy UI with role-based access control; built file upload module with S3 direct uploads and polling mechanism to track upload progress.
• Created custom hooks for data fetching and caching, improving performance by 25%.
• Managed CRUD operations across entities and integrated JWT-based authentication.

Software Developer | Technogrowth Software Solutions

Global Invoice Manager - ASP.NET Core, Razorpay, PDF Generation

• Developed REST APIs for multi-country invoice management, tax calculations, and automated PDF invoice generation (using iTextSharp).
• Integrated Razorpay payment gateway with refund handling and transaction logging.
• Implemented email service (SMTP) to auto-send invoices to customers; designed relational database schema for customers, invoices, and line items.
• Reduced invoice generation time by 40% through optimized LINQ queries and caching.