IT-Systemadministrator/in

Analysis and Systems Development

Design, implementation and support of fully automated virtualization platform based on CentOS and Ansible
Implementation of Jenkins-based CI/CD pipelines for Node.js applications and websites
Technical guidance on design and implementation of cloud native applications
Deployment of core infrastructure systems for monitoring, alerting and backups
Development of automation for deploying Kubernetes clusters following best practices
Troubleshooting, root cause analysis, documentation and training
Development of tools in Python, Ruby and Shell Script
Focus on contributing to upstream open source projects
Daily interaction with colleagues from North America and Europe

Infrastructure support for BI platform based on Linux and Windows Server
Performance analysis and tuning of open source and proprietary applications
Troubleshooting, root cause analysis, documentation and training
Configuration of Compuware APM tools (DCRUM and Transaction Trace Analysis), Wireshark, debuggers, Windows Event Tracing, SysInternals tools, Linux strace and others.
Infrastructure applications: IIS, Apache, Tomcat, Weblogic, .NET Framework 4.5, Java EE 7
BI Applications: Oracle EPM, Hyperion Essbase, Qlikview, SAP Business Objects

Responsible for software distribution servers running in every office
Development of customized Linux distribution with support for virtualization of Windows
Management of Red Hat Enterprise Linux servers on a daily basis
Development of automation tools using Python and Shell Script
Advanced support for unresolved issues by 3rd-level HelpDesk
Aid in testing and development activities

Management of Red Hat Enterprise Linux, Solaris AIX and HP-UX servers
Constant interaction with Windows Server team
Supported Websphere and Weblogic applications used for shop floor management
Managed EMC storage array as well as and Veritas clusters responsible for critical factory systems

Responsible for managing 500+ storage servers used by the cloud computing environment
Development of internal automation tools in Python, Ruby, Perl and Shell Script
Daily usage of advanced Solaris tools like ZFS, DTrace, SMF, RBAC and IPFilter
Support internal clients using NFS, CIFS (SMB) and iSCSI servers
Responsible for the design of an improved storage solution based on x86/SAS architecture
Integration tests with front-end systems (Vmware, Xen, Linux, Windows Server)
24x7 oncall duties and troubleshooting of performance issues (IOPS/latency)

Infrastructure support for payment application running on Solaris/Weblogic.

Bootstrapped complete ISP/hosting infrastructure based on FreeBSD.

Certificate ID CKA-1700-0040-0100

Anderes Zertifikat

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