Perseus Administration logo Perseus Administration by Przemysław Bielawski

Portfolio

Practical experience in enterprise infrastructure and platform environments.

Selected professional experience behind Perseus Administration: container platforms, Linux infrastructure, automation, high availability and application delivery in environments where reliability and operational discipline matter.

Core technologies

OpenShift OKD Kubernetes Google Kubernetes Engine F5 Linux RHEL CentOS Ansible Semaphore PostgreSQL Patroni NGINX HAProxy RabbitMQ VMware Podman

Current

ING

Enterprise financial-sector environment

Platform Engineering & Infrastructure

Work focused on OpenShift, Google Kubernetes Engine and F5 technologies in a large enterprise environment.

  • OpenShift-based platform work
  • Google Kubernetes Engine
  • F5 application delivery and traffic management
  • Enterprise infrastructure operations

Previous

Polish Airports

Critical infrastructure environment

Linux Infrastructure & High Availability

Maintenance and modernization of Linux-based systems supporting critical airport-related environments.

  • Maintained nearly 150 systems based on RHEL, CentOS, Spring, Tomcat, NGINX, HAProxy, RabbitMQ, PostgreSQL and VMware
  • Designed and deployed PostgreSQL high availability cluster based on Zalando Patroni
  • Prepared point-in-time recovery strategy
  • Implemented Ansible and Semaphore stack across a large server fleet
  • Prepared infrastructure migration from CentOS 7.9 to Red Hat 9.2

Previous venture

Odpowiedni System

Independent business initiative

OpenShift / OKD Platform Solutions

Co-founded an IT initiative focused on infrastructure and platform solutions, with responsibility for OpenShift/OKD-based environments.

  • OpenShift/OKD-based platform solutions
  • Container platform architecture
  • Infrastructure automation and operational patterns

Previous

Tiktalik.com / Techstorage

Hosting platform environment

Hosting Platform & Systems Administration

Work on a proprietary hosting platform and system administration responsibilities.

  • Development and maintenance of hosting platform based on CentOS, Django, XenServer and PostgreSQL
  • REST API platform development with Django
  • HVM virtualization support
  • First-line client support