Oleksandr Nikitin
Independent Consultant at Self-employed
Ukraine
Summary
🤩
Rockstar🎓
Top SchoolOleksandr Nikitin is an independent consultant and security-minded engineer with 14+ years of experience building and hardening systems across finance, aerospace, media, and entertainment. He has led R&D efforts, re-engineered legacy HFT platforms, and co-founded security-focused ventures such as Toliman LLC where he championed usable privacy and P2P collaboration tools. Technically versatile, he combines deep systems and cryptography knowledge with hands-on development in .NET, concurrent microbenchmarks, reverse engineering, and secure storage/distribution. His open-source contributions include performance-focused work on a 1M-threads Skynet microbenchmark and cross-language optimizations, reflecting a pragmatic approach to concurrency and tooling. A strong believer in telecommuting and practical, end-to-end understanding, he blends research-level rigor with product-focused delivery for high-stakes clients. Based in Ukraine with a BS in Applied Mathematics and Computer Science, he prefers meaningful consulting engagements over generic outsourcing.
14 years of coding experience
9 years of employment as a software developer
Igor Sikorsky Kyiv Polytechnic Institute
English, Russian, Ukrainian
Github Skills (15)
asynchronous10
netcore10
csharp10
performance-optimization10
multithreading10
async10
dotnet-core10
parallel-execution9
parallel9
parallel-processing9
fsharp6
crystal-lang5
go5
javascript5
nodejs5
Programming languages (31)
Github contributions (5)
atemerev/skynet
Feb 2016 - Aug 2016
Skynet 1M threads microbenchmark
Role in this project:
Back-end Developer
Back-end DeveloperContributions:31 commits, 17 PRs, 30 pushes in 5 months
Contributions summary:Oleksandr focused on implementing a microbenchmark for testing concurrent programming performance in .NET Core. They initially set up and ran the benchmark, then refactored it to address performance issues on macOS by removing a Stopwatch dependency. Further improvements involved adapting the code to use Task.Run and simplifying the sync/async execution, including optimizing the aggregation of results in the asynchronous part. The user also contributed code in other languages (F#, JavaScript/Node, Crystal, and Go) by merging pull requests.
microbenchmark
wizzard0/llama2.ts
Aug 2023 - May 2025
Llama2 inference in one TypeScript file
Contributions:1 review, 1 PR, 3 pushes in 1 year 9 months
inferencellamatypescriptllama2llm
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