who, what, where
Kuan is a software developer and researcher; currently at Mapbox, where I work on distributed pipelines for modality classification, speed profiling, and real-time ETAs.
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2019 - Present: Staff SWE on Telemetry at Mapbox (San Francisco)
2019 - 2025: Sr. Software Engineer2017 - 2019: Data science & engineering at UrbanFootprint (Berkeley)
2016: Software Engineer & Fellow at Code for America (San Francisco)
2015: Civic Tech Fellow at Microsoft (New York City)
2012 - 2015: Transport modeling software researcher with MIT Media Lab and Flocktracker (Cambridge)
Select posts from blog
Building a Lightweight Map Matcher in Go
A practical exploration of building a high volume, high concurrency, dependency-light road-snapping service in Go.
A practical exploration of building a high volume, high concurrency, dependency-light road-snapping service in Go.
Self-Hosting Vector Tiles with Protomaps
Useful tooling for building light, controllable map clients without third-party APIs.
Useful tooling for building light, controllable map clients without third-party APIs.
Map Matching Simplified (HMM map matching algorithm)
A practical explanation of implementing a map-matching algorithm from GPS traces using Python and state likelihood modeling.
A practical explanation of implementing a map-matching algorithm from GPS traces using Python and state likelihood modeling.
Performant Spatial Analysis via Cell Clustering
Matrix-based techniques for efficient spatial clustering using vectorized operations in Python.
Matrix-based techniques for efficient spatial clustering using vectorized operations in Python.
Identifying urban zones with spectral clustering
Walkthrough of computing centrality metrics on a transportation network using custom tools and graph libraries.
Walkthrough of computing centrality metrics on a transportation network using custom tools and graph libraries.