Worked on VictoriaMetrics/VictoriaLogs and VictoriaMetrics/VictoriaMetrics, delivering reliability and performance improvements across distributed storage and metrics systems. Addressed concurrency and caching issues in Go, enhancing multitenant robustness and reducing panics in high-load environments. Introduced a configurable Kubernetes API discovery timeout, improving operator reliability and service availability. In the storage layer, refactored indexing logic and time-range handling, moving search operations to IndexDB and expanding test coverage for Graphite metrics endpoints. Focused on backend development, system optimization, and database management, the work emphasized correctness, maintainability, and smoother rollouts, resulting in more stable and predictable behavior for time series data workloads.