In September 2025, valhalla/valhalla delivered a critical correctness fix for TimeDistanceMatrix in partial requests. The patch ensures that only settled destinations are considered when computing partial matrices, with unsettled destinations assigned a distance of 0. This removes erroneous distance values in scenarios where some destinations are unreachable or unsettled, improving accuracy for partial-route planning. The change is captured in commit 24734b0d2248c6e5ee016daf6cdd6e89c1c8c050 (“Only return settled destinations for partial TimeDistanceMatrix requests (#5505)”) and is ready for integration. This work enhances reliability, reduces downstream confusion for routing workflows, and demonstrates strong code-quality skills in edge-case handling and git discipline.

November 2024: Focused on reliability and correctness of benchmarking tooling in valhalla/valhalla. Delivered a critical bug fix in valhalla_benchmark_loki: corrected latitude/longitude order for PointLL construction and set a default reach option to ensure benchmarks run reliably. This change, committed as c4681ef12d2ce62f63a07dfd230fd6adad3ff38c (#4981), was integrated into valhalla/valhalla. Impact: more accurate benchmark results, fewer flaky runs, enabling better performance assessments and planning. Technologies/skills demonstrated: geospatial data handling, C++ debugging, benchmarking tooling, and Git-based collaboration.