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Work Background
Správa železnic, state organizationSystem Specialist
Jul. 2023Prague, Czechia · HybridPreparation, deployment and continuous administration of Kubernetes environment, hosted on-prem inside secured environment
Deployment and administration of Gitlab self-hosted environment, deployment and maintenance of CI/CD pipelines
Monitoring using Prometheus and Grafana
Using Ansible and RH Satellite to automate tasks
NewsmaticsDevops System Engineer
Sep. 2022 - Feb. 2023Prague, Czechia · RemoteI assumed the responsibility of overseeing Cloud hosted Debian servers. Utilizing Ansible, I streamlined task automation and application deployment processes. Leveraging Docker containers, I established efficient development and testing environments. Alongside, I conducted server patching, troubleshooting, and implemented proactive monitoring through Grafana, ensuring both optimal performance and security standards.
Tesco Stores CR, a.s.LINUX SYSTEM ENGINEER(Devops)
Mar. 2020 - Sep. 2022Prague, Czech Republic · RemoteIn my role supporting the Dataplatform team, I facilitated the seamless operation of Big Data technologies including Hadoop and Spark. I spearheaded the creation of advanced automation pipelines utilizing Ansible and Terraform in VMware environments. Employing Prometheus/Grafana monitoring, I ensured robust system oversight and performance optimization. As the principal DevOps engineer, I led the strategic initiative to replace the native Hadoop HDFS with a Ceph-based, S3-compatible object storage solution, enhancing scalability and data accessibility across the platform.
Hello bank! ČRUnix/Linux System Administrator
May. 2019 - Feb. 2020Prague, The Capital, Czech Republic · On-siteSupporting core banking backend systems, running on Solaris and Linux platform. Providing technical experience with OS updates, patching management, monitoring, user management, usage of Ansible automation. Troubleshooting incidents.
ConcurSystem Enginner
Jan. 2015 - Jul. 2017On-siteCollaborating within the organization to maintain and document file transfer applications and processes with unified policies. Performing RedHat Linux administration tasks and utilizing Ansible automation for configuration management. Managing service requests for file transfer systems and production mail infrastructure administration. Troubleshooting file transfer incidents and performing system maintenance tasks. Ensuring compliance with corporate policies and audit requirements.
RaiffeisenbankIT Specialist
May. 2011 - May. 2014Prague, The Capital, Czech RepublicI provided initial setup and operational support for a large AIX environment, comprising IBM Power servers, virtual partitions, SAN disk arrays and Oracle DBs,. I participated in 24x7 on-call support and gained hands-on experience in the data center. Additionally, I supported the integration of standardized application interfaces and third-party services like WMB, WMQ, JBoss, Siebel, and others. I also provided assistance to end-users and technical account users while managing systems through IBM management tools.
IBMUNIX administrator
Mar. 2010 - Apr. 2011In my role, I've managed IBM AIX systems, RedHat, and SUSE Linux environments, providing 2nd level on-call support. I've handled AIX and IBM High Availability and Disaster Recovery Solutions (HACMP) issues, implemented operational requests, and managed HACMP configurations. Additionally, I've worked with Logical Partitions and scheduled jobs using Tivoli Workload Scheduler (TWS). I've supported WebLogic, Websphere, TSM backup solutions, Apache web servers.
AjilonIT specialist
Jan. 2009 - Dec. 2009Remote support for UNIX/Linux systems and Oracle databases, monitoring of system parameters and log files, managing filesystems and networks. Working with shell scripts. Manupulating tablespaces in DBs. Running SQL scripts.Responding to user service calls.
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