Hitoshi Togasaki
シニアソフトウェアエンジニア at Mapbox
Chiyoda, Japan
Summary
👤
Senior🎓
Top SchoolHitoshi Togasaki is a senior software engineer with 11 years of experience specializing in search, information retrieval, and NLP-driven tooling, currently leading search engineering at Mapbox. He has designed and operated production Elasticsearch clusters, built query parsers and auto-completion systems, and improved search quality through tokenizer fixes, synonyms, and ranking enhancements using Go and Terraform. At SoundHound he led test-case management and POI search efforts, integrating external data sources and reducing user friction by detecting and correcting location/address inconsistencies. His background blends rigorous academic training (MSc Computer Science, University of Tokyo; BS Mathematics, Waseda) with a practical focus on developer productivity and deployment reliability, such as backend hot-reload and OpenAPI-driven workflows. An uncommon strength is his track record of bridging research-grade IR techniques with pragmatic operational improvements that lower support load and speed iteration.
11 years of coding experience
6 years of employment as a software developer
Master of Science - MS, Computer Science, Master of Science - MS, Computer Science at 東京大学Bachelor's degree, Mathematics, Bachelor's degree, Mathematics at 早稲田大学 WASEDA University
Chinese, Japanese
Github Skills (48)
solver10
hey10
duplicates10
sat-solver10
sat10
clause10
benchmark9
acl9
tokenizer9
lambda9
cli9
spotify9
music9
rust9
html-form8
Programming languages (8)
Github contributions (5)
togatoga/gatosat
Jan 2018 - Feb 2019
A cdcl SAT solver written in Golang(Go).
Contributions:2 PRs, 116 pushes, 6 branches in 1 year
golangcdclsatsat-solversolver
togatoga/bullsat
Jan 2021 - Mar 2022
Contributions:22 commits, 1 PR, 77 pushes in 1 year 2 months
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