Bijan Javaherian developed an efficient 64-bit varint encoding feature for data serialization in the facebook/fbthrift repository. He introduced a new C++ function that writes 64-bit integers as varints, reducing payload sizes and improving throughput for high-volume data transmissions. His work focused on optimizing serialization efficiency, enabling lower bandwidth usage and better CPU performance in distributed systems. Drawing on skills in C++ development, data serialization, and system programming, Bijan concentrated on code quality and maintainability. The feature established a foundation for future serialization enhancements, reflecting a deep understanding of performance-critical engineering in modern service architectures. No bugs were reported.