Ales Kozumplik
Staff Software Engineer at SiriusXM
Oxford, England, Czechia
Summary
👤
Senior🎓
Top SchoolAles Kozumplik is a Staff Software Engineer with 13 years of experience building scalable, high-performance JVM/Scala systems for clinical and consumer-facing products. He blends hands-on backend engineering with delivery leadership, shipping reliable services at companies from Red Hat (where he led DNF package manager work) to AWS, Disney Streaming, and now SiriusXM. His expertise spans full-stack clinical apps, identity/security detection pipelines, infrastructure automation, and Linux package/installer tooling, with deep experience in CI/CD, K8s, and cloud platforms. Collected experience across systems programming (C/Python), low-latency services (C++, Java), and data-heavy ETL and monitoring gives him a rare cross-domain fluency. Outside work he hoards sporting events data into data warehouses to explore patterns, reflecting a pragmatic curiosity that often drives elegant engineering shortcuts.
13 years of coding experience
17 years of employment as a software developer
MSc., Software System Engineering, MSc., Software System Engineering at Aalborg UniversityBSc., Information Technologies, BSc., Information Technologies at Brno University Of Technology
English, Czech, Slovak
Stackoverflow
91reputation
5kreached
1answer
0questions
Github Skills (7)
dnf10
package-manager10
python10
rpm10
sbt6
pattern-matching6
scala6
Programming languages (7)
Github contributions (5)
rpm-software-management/dnf
Jul 2012 - Apr 2013
Package manager based on libdnf and libsolv. Replaces YUM.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:39 commits in 9 months
Contributions summary:Ales primarily focused on enhancing the DNF package manager's core functionality. Their contributions involved propagating the "reason" for package actions across upgrades, improving the "info" output to correctly display the "from_repo" information, and adapting the code to changes in the underlying hawkey library. Further improvements included the introduction of selector-based updates, and improvements to the handling of package installations via filenames, and other minor bug fixes and performance tweaks.
pythonrpmpackage-managerlinuxyum
akozumpl/akozumpl.github.io
Aug 2019 - Aug 2023
Contributions:23 pushes, 1 branch in 4 years
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