Orson works at Polars, where he focuses on query execution. He is passionate about optimizing code and squeezing the most performance possible out of a CPU, which is a perfect fit. He is the (co-)author of various sorting algorithms (e.g. pdqsort, driftsort, ipnsort), some of which are used in the Rust and Go standard libraries. He has also published fast hashing algorithms (foldhash, polymur-hash), and several other open-source Rust crates (e.g. slotmap).