Cezary Zywicki
Principal Engineer, Technical Support at Pegasystems
Poland
Summary
🤩
Rockstar🎓
Top SchoolCezary Zywicki is a Principal Engineer in Technical Support with 13 years of experience blending hands-on backend and DevOps engineering with people leadership and ITIL-driven service management. He currently leads support and escalation processes at Pegasystems, driving reliability through data-informed decisions, change management, and team enablement. Technically fluent in cloud-native tooling and GCP, he contributes to prominent open-source projects like Kubernetes—working on GCE load balancer and NetLB features—and has improved ingress/L4 behaviors and observability for Google Cloud controllers. His background spans application support, product ownership, and financial analytics, enabling him to translate complex technical issues into business outcomes and stakeholder-ready insights. Ambitious about continuous learning, he’s pursuing postgraduate IT management studies while mentoring teams and shipping pragmatic, scalable solutions.
12 years of coding experience
2 years of employment as a software developer
Postgraduate Degree, IT Manager, Postgraduate Degree, IT Manager at Gdańsk University of TechnologyPostgraduate Degree, Python Developer, Postgraduate Degree, Python Developer at Wyższa Szkoła Bankowa w GdańskuMaster's degree, Economic Analytics, Master's degree, Economic Analytics at Politechnika Gdańska
Github Skills (18)
kubernetes10
back-end-development10
testing10
ingress10
load-balancing10
gcp10
cnc10
go10
kubernetes-pods10
backend10
metric10
cloud-infrastructure9
devops9
cloud-services9
docker8
Programming languages (5)
Github contributions (5)
kubernetes/ingress-gce
Jan 2022 - Dec 2022
Ingress controller for Google Cloud
Role in this project:
Back-end Developer & DevOps Engineer
Back-end Developer & DevOps EngineerContributions:352 reviews, 15 commits, 55 PRs in 10 months
Contributions summary:Cezary primarily focused on enhancing the L4 load balancing features within the Google Cloud Ingress controller. They implemented changes to flag configurations, specifically converting a flag to a boolean for the L4 NetLB controller. Furthermore, the user improved service deletion processes and added a new flag for configuring metrics export frequency. They also addressed health check mechanisms, fixing bugs and incorporating metrics for failures, along with addressing minor issues in tests.
loadbalancergcpcontrollergoogleingress-controller
kubernetes/kubernetes
Apr 2018 - Jan 2022
Production-Grade Container Scheduling and Management
Role in this project:Back-end & DevOps Engineer
Back-end & DevOps EngineerContributions:19 reviews, 9 commits, 16 PRs in 3 years 10 months
Contributions summary:Cezary's contributions primarily focus on the GCE load balancer within the Kubernetes project. They implemented unit tests to ensure the correct functionality of instance groups with the RBS alpha feature gate enabled. The user also modified existing code to account for the NetLB_RBS feature, stopping instance group management when the feature gate is active. Furthermore, they made adjustments related to instance group deletion and filtering, and applied review comments to the code.
containersschedulingdockergradeproduction-grade
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