May 2026 (2026-05) – Focused on correctness and test coverage for incremental reads in apache/paimon. Delivered a critical fix in the Incremental Diff Split Read to correct the merge order across levels, and added a regression test for incremental scan mode with insert overwrite to ensure reliable data retrieval. These changes improve data accuracy, reduce risk of incorrect results in production, and strengthen future stability of incremental reads. Technologies demonstrated include core debugging of the incremental read path, regression test development, and maintainable code changes in the core module (commit b96568770046ae83a3177dbbeccfd66d6e0823da).

December 2025 — Apache/amoro: Delivered two high-value capabilities that boost reliability, scalability, and operational uptime. Key features include a new Process Scheduling Framework for the Process Service, with core framework refactor and added tests, and a Database High Availability (HA) Service with Leader Election to ensure automatic failover and continuous uptime. The work included targeted optimizations of the process framework, expanded test coverage, and the introduction of configurable HA types, heartbeat intervals, and a management container to handle leases and leadership states. These changes reduce downtime risk, improve throughput under load, and lay groundwork for future scaling.