RomanĀ Grudzinski
Staff Software Engineer at Unity
Tel Aviv-Yafo, Tel Aviv District, Israel
Summary
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Top SchoolRoman Grudzinski is a Staff Software Engineer based in Tel Aviv with 12 years of experience building backend systems and optimizing performance-sensitive code. He has progressed through senior engineering roles at companies including ironSource and Unity, delivering scalable services for analytics, e-commerce, and call-center tooling. An active contributor to open-source Go tooling, he improved a widely used concurrent-map library by optimizing hashing, adding memory pools, and introducing Upsert/IterCb patterns that reflect a deep focus on concurrency and memory efficiency. Roman pairs hands-on code-level improvements with architectural judgment, often tackling hot-path optimizations that yield measurable runtime and memory gains.
12 years of coding experience
16 years of employment as a software developer
Shevah Mofet
Hebrew, Russian, English
Github Skills (10)
maps10
go10
concurrency10
testing9
data-structure9
algorithm9
data-structures9
hashtable9
memory-management9
algorithms9
Programming languages (2)
Github contributions (5)
orcaman/concurrent-map
Jul 2016 - Aug 2016
a thread-safe concurrent map for go
Role in this project:
Back-end Developer
Back-end DeveloperContributions:9 commits, 6 PRs, 6 pushes in 27 days
Contributions summary:Roman contributed to the thread-safe concurrent map library for Go. Their work involved optimizing the code, including reusing a hasher to improve efficiency, adding a hash pool and buffer pool for memory management. They also fixed tests, refactored the code by adding new methods such as `Upsert` and `IterCb`, and merged remote-tracking branches.
golangthread-safetyconcurrent-mapconcurrent-programmingconcurrency
ironSource/proxy
Nov 2013 - Mar 2019
Contributions:13 commits, 1 push, 1 branch in 5 years 4 months
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