Dan Top worked on slatedb/slatedb, focusing on optimizing storage throughput by implementing a Write Ahead Log (WAL)-driven flush policy for Level 0 storage. He designed a mechanism that triggers a storage flush after a defined number of WAL entries, directly addressing write throughput and storage management challenges in high-volume workloads. Using Rust and asynchronous programming, Dan applied database management and testing skills to tune the storage engine for better performance. While no major bugs were fixed during this period, his work laid the foundation for further WAL-based optimizations and demonstrated depth in performance-focused development within the slatedb/slatedb repository.