Calin Serbu

Key Achievements

• Modernizing Critical Systems: Directing team to rebuild a legacy authorization system vital to operations, with the goal of delivering a solution that increases reliability, maintainability, and observability while fostering individual growth through targeted training.

• Revenue Enablement: Enhanced Apple Wallet’s transit feature adoption by implementing a real-time distributed feedback system, contributing to improved customer retention and usage rates.

• Team Empowerment: Mentored junior engineers through tailored training programs, improving code quality and delivery timelines by fostering skill alignment with business needs.

• Process Streamlining: Reduced Apple Card's identity verification complexity by implementing a chain of responsibility rules engine, improving improving both maintainability and reliability.

• Team Integration: Accelerated the integration of a newly acquired team into Apple’s culture by reducing onboarding time through targeted training on Cassandra data modeling, streamlining their adoption of best practices for Spring WebFlux application development, and improving project delivery alignment by demonstrating the Apple software development lifecycle.

• Cost Efficiency: Delivered a secure asset dependency feature for Apple Card’s identity verification process, using parallel work streams to reduce development time and resource expenditure.

• Productivity Enhancement: Achieved a 40% login speed improvement in the Apple Store point of sale application by implementing concurrent server side logic thereby enabling faster service delivery and increasing transaction throughput.

• Data Automation: Improved data analysis efficiency by 99% for Travelers Insurance, automating workflows through a custom Java batch program that transformed XML into actionable Excel reports.