Worked on the EspressoSystems/optimism-espresso-integration repository to address a critical concurrency issue in backend systems. Focused on resolving a deadlock that occurred during sequencer shutdowns when deployed with op-conductor, the solution introduced a leadership-verified wait mechanism. By checking for leadership before waiting for the latest head, the implementation ensured that if leadership was lost, the shutdown process would skip unnecessary waits, preventing blocking and enabling a clean exit. This approach improved system reliability and deployment stability, reducing production risk. The work leveraged Go and applied expertise in backend development, distributed systems, and concurrency to enhance operational robustness.