Perry Liu
Software Engineer at DoorDash
California, United States
Summary
👤
Senior🎓
Top SchoolPerry Liu is a software engineer based in California with 15 years of technical expertise and a decade of hands-on experience delivering navigation and location products end-to-end. He has built scalable spatial databases, routing engines, map-making pipelines, and last-mile solutions from scratch to production, driving efforts at Telenav and currently at DoorDash. Perry led cross-continental teams and replaced proprietary stacks with open-source tooling (OSRM, Valhalla, Tegola), demonstrating both systems-level judgment and pragmatic engineering. At DoorDash he pioneered address content, micro address points, parking intelligence, and last-meter paths that digitize real-world delivery flows. He combines deep algorithmic knowledge (Highway Hierarchy, Contraction Hierarchies, HMM map-matching) with product-focused delivery, and maintains a low-key open-source footprint alongside impactful platform work.
10 years of coding experience
12 years of employment as a software developer
Bachelor's degree Computer Software Engineering, Bachelor's degree Computer Software Engineering at Sichuan University
Github Skills (26)
openstreetmap10
graph-algorithms10
osmium10
traveling-salesman10
offline-maps10
directions10
dijkstra10
experiences10
map-matching10
astar10
cpp10
backend10
osrm10
snake-case3
furry3
Programming languages (3)
Github contributions (5)
CodeBear801/zoo
Oct 2018 - Jul 2020
Collection of code snippets
Contributions:120 pushes, 1 branch in 1 year 9 months
jstreefurrysnake-casesnippets
Telenav/open-source-spec
Feb 2019 - Apr 2021
Open source experiences and profiles.
Contributions:234 commits, 2 PRs, 159 pushes in 2 years 2 months
dijkstramap-matchingexperiencesastarosrm
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