Alexei Ababilov
Senior Software Engineer at Google
Sydney, New South Wales, Australia
Summary
🤩
Rockstar🎓
Top SchoolAlexei Ababilov is a Senior Software Engineer with 13+ years building high-performance distributed and cloud systems, currently driving transit and navigation infrastructure at Google from Sydney. He combines deep algorithmic expertise (graph theory, computational geometry, cryptography) with extensive C++/Python systems experience, having optimized trip conflation by 12x and designed a GTFS validator that processes 700K trips per minute. A pragmatic open-source contributor with ~100 merged OpenStack commits and enhancements to Google's transitfeed (SVG output, Unicode support), he repeatedly wins internal engineering challenges and mentors C++ readability candidates end-to-end. Notably, he has produced production services that accelerate long-distance route search 2.5x and support navigation in major stations used by tens of millions.
13 years of coding experience
8 years of employment as a software developer
National Technical University "Kharkiv Polytechnic Institute"Finished school summa cum laude., Finished school summa cum laude. at Kharkiv Gymnasium 47
English, Russian, Ukrainian, Italian, Spanish, Romanian, Polish, French, German, Portuguese, Swedish, Dutch
Github Skills (8)
python10
graphviz10
subprocess9
fileio9
file-access9
file-handling9
file-processing9
unicode8
Programming languages (6)
Github contributions (5)
google/transitfeed
Mar 2019 - May 2019
A Python library for reading, validating, and writing transit schedule information in the GTFS format.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:5 commits, 10 PRs, 5 pushes in 1 month
Contributions summary:Alexei contributed to the `google/transitfeed` repository by implementing new features and improving existing ones related to the visualization of transit pathways. They added functionality to generate SVG files, allowing for more scalable graph representations. They also updated the code to support Unicode and allowed users to select specific stations for generating pathway graphs, optimizing the visualization process for larger datasets. Furthermore, they updated the interpreter for the scripts.
gtfspython
aababilov/gtfs-validator
Sep 2020 - Nov 2023
GTFS Validator project for static (schedule) files from a zip archive
Contributions:402 pushes, 237 branches in 3 years 2 months
zip-archivearchivegtfszipvalidator
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