Ivan Kolodyazhny - Senior Software Engineer at OpenStack

Ivan Kolodyazhny

Senior Software Engineer at OpenStack

Kharkiv, Kharkiv Oblast, Ukraine

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Summary

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Rockstar

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Top School

Ivan Kolodyazhny is a Senior Software Engineer with 15 years of experience specializing in web applications, cloud and OpenStack ecosystems, and backend Python development. He currently contributes to and leads efforts in OpenStack (Horizon PTL and core reviewer) and works at NVIDIA, bringing deep expertise in Cinder, Neutron, and Horizon codebases. Ivan is an active open-source contributor—his network-focused enhancements to the popular netlink Go library and bugfixes/security improvements in OpenStack Cinder demonstrate a practical focus on reliability and infrastructure at scale. He combines strong JavaScript/front-end optimization skills with systems-level knowledge (databases, Linux/Windows administration, and cloud platforms like GAE and OpenStack). Organizer of Kharkiv Python community events and a past lecturer on ASP.NET MVC, DLR/IronPython and GAE, he pairs community leadership with hands-on engineering. Notably, despite early .NET experience, he now prefers non-.NET roles, signaling a deliberate focus on cloud-native and Python-centric work.

15 years of coding experience

14 years of employment as a software developer

Kharkiv National University of Radio Electronics

Software Development, Software Development at Kharkov Patent-Computer Colledge

English, Russian, Ukrainian

Stackoverflow

Stats

574reputation

68kreached

29answers

0questions

Github Skills (52)

code-optimization10

benchmark10

preprocessing10

back-end-development10

python10

preprocess10

django10

cinder10

rally10

benchmarking10

html-template10

python-templates10

networking10

network-programming10

sc10

Programming languages (12)

TypeScriptPowerShellSmartyDockerfileShellCSSJinjaDIGITAL Command Language

Github contributions (5)

openstack/cinder

Jul 2014 - Dec 2020

OpenStack Block Storage (Cinder). Mirror of code maintained at opendev.org.

Role in this project:

Back-end Developer

Contributions:153 commits in 6 years 6 months

Contributions summary:Ivan primarily contributed to the back-end functionality of the OpenStack Block Storage (Cinder) repository. Their work involved addressing bugs, enhancing security, and improving code quality, specifically through the use of PyCrypto for password generation and the implementation of immutable default values for function arguments. The user also made improvements to the database interaction and schema migration, and fixed some inconsistencies within API implementations.

block-storageopenstack

openstack/horizon

Apr 2014 - Dec 2020

OpenStack Dashboard (Horizon). Mirror of code maintained at opendev.org.

Role in this project:

Back-end Developer

Contributions:135 commits in 6 years 8 months

Contributions summary:Ivan primarily contributed to bug fixes and improvements within the OpenStack Horizon dashboard. Their work included addressing issues related to search form submissions and missing translations in firewall views. They also resolved style issues in the error page template and added functionality related to volume creation, showcasing an understanding of the underlying infrastructure. The user's commits demonstrate proficiency in the codebase and a focus on improving the user experience and resolving technical problems.

openstack

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