Alexander Slesarev
Software Engineer at Cisco
New York, New York, United States
Summary
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RockstarAlexander Slesarev is a Software Engineer with 16 years of experience based in New York, specializing in performance-sensitive backend systems, embedded/security domains, and big data. He contributes to open source—working on projects like plotters-rs where he implemented boxplot rendering across multiple backends—and has a track record of optimizing language benchmarks for memory and speed. Comfortable across low-level and data-focused stacks, he blends systems thinking with pragmatic engineering to ship measurable performance improvements. His work shows attention to cross-platform implementation details (WASM, SVG, BitMap) and rigorous test and documentation practices. Colleagues can expect an engineer who pairs deep technical craft with a focus on measurable outcomes.
16 years of coding experience
Github Skills (20)
data-visualizations10
benchmarking10
data-visualisation10
plot10
performance-tuning10
data-visualization10
rust10
benchmark9
java9
scala9
go9
svg9
javas9
cprogramming-language8
c-language8
Programming languages (10)
Github contributions (5)
kostya/benchmarks
Oct 2019 - Jan 2023
Some benchmarks of different languages
Role in this project:
Back-end Developer & Performance Engineer
Back-end Developer & Performance EngineerContributions:62 reviews, 183 commits, 347 PRs in 3 years 4 months
Contributions summary:Alexander made several commits focused on optimizing and improving the performance of various language benchmarks. Their contributions included updating toolchains and addressing specific tickets to fix memory consumption calculations and apply changes from pull requests. They removed and replaced language implementations that were no longer actively maintained or supported, focusing on core benchmark functionality. Further commits involved optimizing code and updating results, indicating a focus on performance analysis and improvement.
benchmarkbenchmarkslanguagesbenchmarking
plotters-rs/plotters
Nov 2019 - Nov 2019
A rust drawing library for high quality data plotting for both WASM and native, statically and realtimely 🦀 📈🚀
Role in this project:Back-end Developer
Back-end DeveloperContributions:33 commits, 3 PRs, 27 comments in 10 days
Contributions summary:Alexander's primary contribution involved adding the boxplot element and category coordinates to the plotting library. They implemented the core logic for the boxplot element, including calculations for quartiles and whiskers. The user also added testing notes, test coverage, and documentation for the new feature. Code changes were made across multiple backend implementations, including SVG and BitMap, indicating broad knowledge of the plotting backend architecture.
drawingdata-plottingsciencedata-qualityrust
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