Lubosz Kosnik
Co-Founder at Apotrope
Tampa, Florida, United States
Summary
👤
Senior🎓
Top SchoolLubosz Kosnik is a seasoned software engineer and co-founder with 11 years of experience building large-scale, cloud-native systems and distributed networking infrastructure. He has driven high-impact engineering work at enterprises like Walmart and JPMorgan Chase, designing load balancers, health-check systems, and network resilience features that handled half of Walmart’s web traffic and saved millions in infrastructure costs. A pragmatic leader and mentor, he blends hands-on backend development with architecture and team coaching, and has significant open-source contributions to OpenStack Octavia around load balancing and security group handling. Based in Tampa, he brings an operator-scale perspective from both private and public clouds and a history of shipping production-grade systems that prioritize performance, reliability, and testability.
11 years of coding experience
13 years of employment as a software developer
Master's Degree, Computer Software Engineering, Master's Degree, Computer Software Engineering at Bialystok University of Technology
Polish, English
Github Skills (10)
service-provider10
load-balancing10
openstack10
openstack-neutron10
service-design10
python10
n10
testing9
api8
apidoc8
Programming languages (7)
Github contributions (5)
openstack/octavia
Jul 2016 - Mar 2017
Load Balancing as a Service (LBaaS) for OpenStack. Mirror of code maintained at opendev.org.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:12 commits in 8 months
Contributions summary:Lubosz primarily contributed to the OpenStack Octavia project, focusing on the backend logic for load balancing. Their work included refactoring code for better readability and usability, specifically in the area of security group handling within the Neutron driver. They addressed bug fixes and optimized existing code, such as removing unnecessary conditional statements and exceptions. The user's commits also involved modifying test cases to align with the code changes.
load-balancingopenstack
luboszk/dotfiles
Apr 2016 - Jun 2026
Contributions:89 pushes, 2 branches in 10 years 4 months
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