Worked on the Virtual-Protocol/acp-python repository to enhance the reliability of time-sensitive operations in distributed systems. Addressed a bug by increasing the valid_after buffer from 15 to 60 seconds, directly mitigating issues caused by clock skew and improving protocol sequencing across backend components. The solution focused on Python-based timing logic, emphasizing risk management and incremental improvement. By refining clock skew handling, the update reduced the likelihood of timeouts and misordering in edge-latency environments. All changes were documented and reviewed according to best practices, demonstrating a methodical approach to backend development and a strong understanding of distributed system reliability challenges.