Durga Subrahmanyam Kuppela

Full Stack Net Developer @Electronic Merchant Systems

Cleveland, OH, US

Developed and enhanced Point of Sale software applications using.NET catering to specific industry requirements.• Optimized POS software for reliability, speed, and security using performance tuning techniques, ensuring seamless operation during peak hours and high transaction volumes.• Worked with strategic partners to integrate new features and functionality into the existing product using API development and AJAX.• Designed, developed, and optimized complex SQL stored procedures (SQL Procs) and functions using SSMS to enhance database performance by 30%.• Worked extensively with SQL JSON functions to parse, query, and transform JSON data within relational databases.• Implemented a new mode of payment for merchants paying online using API development and integration with Payment services.• Optimized API performance by implementing caching, load balancing, and request throttling, reducing response times by 40%.• Developed secure APIs with authentication and authorization mechanisms, including OAuth2, JWT, and API key-based access control.• Integrated with Background check services and API’s using API development and.NET.• Utilized IRON PDF for dynamic PDF creation and generation.• Conducted code reviews to ensure high-quality code and performed regression testing to validate software functionality.• Generated comprehensive project documentation covering all aspects of the software development lifecycle

Pragati Engineering College, 1-378, ADB Road, Surampalem, Near Peddapuram,PIN- 533437 (CC-A3)

Bachelor of Technology- BE, Electrical, Electronics and Communications Engineering

Cleveland State University

Master's degree, Information Science/Studies