Worked on improving the startup reliability of the instantdb/instant repository by addressing a critical issue in the server’s transaction subsystem. Focused on backend development and database management using Clojure, the work involved implementing null-safe handling for the max-tx-id query to ensure that an empty transactions table returns 0 instead of nil. This change prevented a NullPointerException during server startup, reducing downtime and support incidents across deployment environments. The solution was delivered with clear commit history and linked pull requests, providing traceability from code to business impact while enhancing the robustness of the server’s initialization process in production scenarios.