Andrej Juha contributed backend enhancements to Grafana’s Loki and Alloy repositories over a two-month period, focusing on performance and security. In grafana/alloy, he improved secret detection by updating the gitleaks configuration to v8.26.0, refining regular expressions and expanding allowlists in TOML to reduce false positives and increase detection accuracy. For grafana/loki, he implemented an L2 chunks cache using Memcached, updating Helm charts and YAML configurations to support scalable caching strategies. His work demonstrated depth in Go, Kubernetes, and configuration management, addressing real-world challenges in security tooling and distributed system performance without introducing regressions or bugs.