Linux Administrator

Správce systému s vášní pro open-source technologie, který má zkušenosti se správou vysoce dostupných systémů a implementací technologií, jako jsou load balancery, clustery a replikace. Zkušenosti s Debianem, Nginxem, ZFS, Proxmox VE a Podmanem. Zběhlý v řešení problémů se souborovými systémy, nastavení VPN a serverů DNS a kontejnerizaci aplikací. Silné zkušenosti s obnovou po havárii a znalost monitorování Zabbix a správy konfigurace Ansible.

07/2023 – CURRENT Linux System Administrator

• Deployed and maintained highly available Linux clusters running in-house tomcat-based applications
• Worked with VMware and Proxmox virtualization
• Installed and configured server and networking hardware
• Assisted internal development teams in optimizing applications
• Introduced monitoring and improved existing monitoring mechanisms
• Provided advanced technical support onsite and to customers

07/2017 – 10/2021 Linux System Administrator

• Deployed highly available clusters utilizing LAMP and LEMP stacks, including Redis in the form of KeyDB
• Implemented ZFS with replication and failover in clusters to reduce the risk of data loss or system failure
• Assisted with implementing Ansible playbooks to streamline processes and reduce errors
• Containerized old apps using Podman to lower maintenance burden
• Improved security by adding features to in-house firewall and Xen virtualization solution
• Wrote documentation and instructions for possible disaster recovery

01/2019 – CURRENT UTest Tester

• Participated in test cycles for localization and payment testing
• Tested mobile apps, websites, and desktop apps on multiple platforms
• Provided image and video documentation of testing
• Submitted detailed bug reports

07/2016 – 12/2016 Mobile Phone Repair Technician

• Repaired and refurbished phones, occasionally performed improvised low-cost IC reflow
• Conducted quality control checks on phones for the second-hand market
• Provided technical customer support and processed warranty claims
• Unlocked android phones with forgotten Google accounts
• Modified imported phones to work in the local market