Hi, my name is

Omkar Abhay Ingawale

I'm a Full Stack Developer

3.5 years of experience | ASP.NET Core • Node • React | Cloud & scalable systems

Omkar

About Me

Omkar

Omkar Abhay Ingawale : Name

Full Stack Developer : Role

Pune, India : Location

+91 8484015599 : Phone

omkaringawale21@gmail.com : Email

LinkedIn Profile : Social

Profile

Detail-oriented software engineer with 3.5 years of experience in full-stack development. Expert in building scalable web apps, multi-tenancy architectures, cloud deployment (AWS), and high-performance UI/backend integration. Proven track record in FinTech, real estate, and AI-driven platforms.

📌 Technical Proficiencies

ASP.NET Core 80%

HTML5, CSS3, JavaScript 90%

React JS, Next JS 85%

Node JS, Express JS 80%

MongoDB, PostgreSQL 75%

Material UI / Tailwind / Bootstrap 85%

AWS (S3, EC2, ECS, ECR) 70%

Work Experience

Jan 2024 – Sept 2025

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.
ASP.NET CoreRazorpayJWTPostgreSQLAWS S3
Jan 2024 – Sept 2025

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.
ReactContext APISCSSJest
Nov 2024 – Sept 2025

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.
ASP.NET CoreStripe APIJWTPostgreSQLxUnit
Nov 2024 – Sept 2025

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.
ReactRedux ToolkitTailwindStripe Elements
Nov 2024

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.
ReactContext APISheetJS
May 2024 – Apr 2025

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.
Node.jsExpressOAuth2PostgreSQL
July 2024 – Nov 2025

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.
Node.jsStripeSequelizeOpenAI
Jan 2024 – July 2024

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.
ReactAWS S3RBAC
Aug 2021 – Dec 2023

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.
ASP.NET CoreRazorpayLINQiTextSharp

Contact Me

Let's connect

omkaringawale21@gmail.com
+91 8484015599 / 9075772072
Pune, India