Karthik Varad

Backend Developer

Publicis Sapient

01-2024 - Present

Developed and optimized survey creation, target group selection, and recurring event update features. Investigated and resolved database issues related to missing survey responses in production. Implemented encryption and decryption mechanisms for securing sensitive data in persistent storage. Designed and executed Flyway migration scripts for database schema updates. Debugged and optimized updateEvent logic to ensure proper updates for onlineMeeting, isReminderOn, and other fields. Resolved thread starvation issues by optimizing database connections and HikariCP configurations. Wrote and maintained unit tests, ensuring high code coverage and error handling. Managed GitHub version control with SSH authentication and collaborated on pull requests.