Parmeen Singh

Visa Payment Thread Lab (VPTL)

• Skills: Java, Spring Boot, REST, MySQL, Maven, Hibernate, SOA, GitHub Copilot, and Postman.
• Developed a Visa Payment Tool using Spring Boot, Java, and microservices architecture for secure and scalable transaction processing.
• Designed and implemented REST APIs to integrate payment gateways, ensuring seamless communication between system components.
• Optimized PostgreSQL and Oracle queries, improving transaction efficiency, and reducing response times.
• Collaborated in an Agile environment, contributing to sprint planning, code reviews, and Git.

• Skills: Java, Spring Boot, REST, MySQL, PostgreSQL, Maven, Hibernate, GitHub Copilot, MS, Postman.

Florida Power Supply (PTS)(Aug 2022 - May 2024)

• Led a team in developing a product tracking system module using Spring Boot, Hibernate, and Microservices.
• Optimized algorithms to reduce code time complexity, improving system performance.
• Designed ORM mappings with Hibernate/JPA, enhancing data access efficiency.

NEE Managed Services(June 2021 - July 2022)

• Built and maintained REST APIs for data transfer between backend modules.
• Refactored and optimized backend components, working extensively with MySQL and Oracle databases.
• Delivered production-grade code, aligned with industry best practices.

One Cognizant (Dec 2020-May 2021)

• Contributed to an application for improving ease of access and optimization of Cognizant's internal systems.
• Optimized SQL queries for load balancing and high-volume data processing (millions of records).
• Enhanced runtime performance through query tuning and database optimizations.