Vasantha Kumar JM

A payment system including NuGet library components for POS payment processing and a Web API for webhook-based payment reconciliation.

• ▸Design and develop NuGet library components for seamless integration with POS systems for payment processing
• ▸Implement robust Web APIs for webhook-based payment reconciliation to ensure transaction accuracy
• ▸Focus on implementing scalable design patterns to enable easy integration with multiple payment providers
• ▸Leverage AI-assisted development for research and faster onboarding to payment provider specs, building a custom Kiro skill to interpret integration documentation and map it into the codebase

An application to capture elevator technical specifications that assist construction planning and on-site maintenance for elevators and escalators.

• ▸Developed and maintained RESTful Web APIs using ASP.NET Core for elevator specification management
• ▸Built responsive UI components using Angular for technical data entry and review
• ▸Integrated the application with MS SQL Server for structured data storage and retrieval
• ▸Hosted and managed deployments via Azure App Service for production and test environments

An internal application to manage onboard meals and catering services for airline commercial operations.

• ▸Owned end-to-end development of features, including requirement gathering, development, and delivery
• ▸Built and maintained RESTful APIs using ASP.NET Core with PostgreSQL as the data store
• ▸Developed dynamic and responsive front-end modules using Angular
• ▸Investigated and resolved bugs across frontend and backend components to ensure stable performance

An application for telecom commercial operations focused on provisioning and maintaining VoIP service orders and license management.

• ▸Developed and maintained Web APIs and MVC components using ASP.NET and SQL Server
• ▸Consumed and integrated external web services from telecom providers to support license provisioning workflows
• ▸Deployed services to testing environments and supported functional validation

A product to automate the collection of site-specific data to analyze large volumes of information in the context of an address, enabling holistic planning, risk prediction, and mitigation.

• ▸Developed and maintained backend services using ASP.NET Core Web API to support data ingestion and processing
• ▸Integrated ArcGIS for geospatial data mapping and analysis at the site/address level
• ▸Worked with PostgreSQL for data storage and querying large spatial datasets