DevOps Engineer & Linux Administrator

Skúsený Linux a DevOps inžinier. Viac ako 15 rokov skúseností s Linuxom. Posledné takmer 3 roky pracuje aj ako DevOps inžinier. Má skúsenosti s Kubernetes, Docker, Ansible. Na svojej súčasnej pozícii zastáva 6 rôznych rolí naraz - pôsobí ako projektový manažér, infraštruktúrny inžinier, robí školenia, spravuje klaster, kóduje veci v Ansible a pracuje ako architekt. Z bezpečnostných dôvodov tam však robí veci manuálne. Zatiaľ nemal možnosť pracovať s cloudovými platformami, ale nemal by problém sa ich naučiť. Väčšinou riadi menšie tímy, ktoré majú maximálne do 10 ľudí. Uprednostňuje dlhodobé projekty na minimálne rok. Angličtinu berie ako svoj prvý jazyk. V nemčine by rozumel všetkému, ale musel by sa dohovoriť.

1.7.2020 - present:

• Preparation of the environment for Open Shift cluster 3.11 (RedHat 7x servers)
• Preparation of lab environment for Open Shift cluster 3.11 (RedHat 7x servers)
• Installation of Open shift cluster 3.11 and improving cluster integration design
• Installation of Ansible Tower 3.5.3 - 3.7.0
• Integration of GitLab, Ldap and other components as well as health checking of the overall platform
• Design & implementation of overall healthchecking, configuration & monitoring framework
• Configuration of Ansible Tower 3.7.0
• Analysis of the current integration, identification of bottlenecks and single point of failures, execution of changes for implementation of identified improvements

2019 – 15.2.2020:

• Management and administration of Corporate IT infra based on RedHat Linux, Suse Linux, Sun Solaris, and AIX
• Automation through Ansible framework, bash, and Python scripts
• Yaml, JSON, genshi templates

1.2.2018 – 31.12.2019:

• Participating in a demanding project of migration of virtual user monitoring solutions
• Analysis of current use cases
• Creation of documentation per use case
• Developing custom monitoring scripts in HP VUGN Load Runner and BMC TruSight Silk performer
• Monitoring of HTTP/HTTPS web-based applications, Citrix remote desktop applications
• Developing & maintaining custom Python application for data conversion and reporting
• Automation of Windows systems through PowerShell 2.0 and BMC Server Automation console

11.12.2017 – 29.1.2018:

• Managing applications running on pods in Kubernetes cluster
• Performing automatic health checking of various pod settings on deployment & statefulset level using a bash scripting framework, jq for JSON parsing & conversion to CSV in Linux RedHat
• Configuration of Zabbix monitoring

1.9.2014 – 8.12.2017:

• Deployment, integration unification & standardization of Java application platforms based on Weblogic & Tomcat in Linux RedHat 5.x and 6.x hosted in VMware/ESXi and Oracle/Mysql backend hosted in VMware/ESXi Linux RedHat 5.x and 6.x machines which are used by Mobile Operators
• Implementation & integration of open-source tools for system/application deployment, configuration, management & monitoring (Nagios, Cacti, Grafana, MediaWiki)
• Migration from physical to virtual solutions - VMware/ESXi
• Managing the Redhat/Centos Linux 5.x and 6.x
• Troubleshooting of telco SMSC based products/SMPP protocol STKML & S@TML
• Leading the team of production engineers
• Technical Responsible for SLA
• Drive technical study for new needs
• Change management
• Technical interface with R&D - code validation, new feature implementation, product improvements proposals & productization (Python, Bash, Perl), maas provisioning with relation to migration from in-house deployed solutions to a SaaS shared multi-tenant virtualized platfor