During March 2026, Xiao Erli focused on backend reliability within the apache/seatunnel repository, addressing a critical issue in the Redis Sink integration. He fixed the RedisSinkWriter’s custom key placeholder handling to support multiple curly braces, restoring correct key generation and enabling more flexible Redis key construction. This Java-based solution improved the consistency of downstream Redis keys, reducing the risk of data loss or incorrect mapping in streaming pipelines. Xiao Erli collaborated closely with another contributor, applying unit testing to ensure robustness. The work enhanced the maintainability and reliability of the Redis sink codebase, reflecting solid backend engineering depth.