Ivan contributed to backend development and systems optimization over a two-month period, focusing on practical improvements in caching and observability. For the mozilla/sccache repository, Ivan enhanced the clippy-driver caching mechanism by modifying argument parsing to ignore the 'rustc' prefix, which reduced cache misses and improved compilation efficiency. In the Shopify/opentelemetry-ebpf-profiler project, Ivan increased debugging traceability by refining error logging within the newFrameMapping function, aiding diagnosis of file offset mapping and executable information loading issues. Ivan’s work demonstrated a solid grasp of Rust and Go, applying caching mechanisms and compiler design principles to address targeted engineering challenges.