Pavol Kotvan available

Pavol Kotvan

Linux engineer

Profileimage by Anonymous profile, Linux engineer
  • Brno Freelancer in
  • Graduation: not provided
  • Hourly-/Daily rates: not provided
  • Languages: English (Limited professional) | Slovakian (Native or Bilingual)
  • Last update: 16.03.2015
Technical skills:
Scripting Languages: bash, ksh, sed, awk, Python (beginner)
Operating systems: Linux, HP-UX, Solaris
Linux Distributions: Gentoo, RHEL, Centos, Fedora, Ubuntu, Debian, OpenWRT, DD-WRT
Virtualization: kvm, qemu, oVirt, Docker, VMware Server 2.0 and ESXi
Linux HA: RHEL HA addon
Telco: debbugging of SMPP, UCP messaging protocols
HW platforms: HP DL/BL/Z series, HP 9000 RP2400, SunFire V440, 6800
Storage: HW HP EVA 4400, HP SAN Brocade 4Gb, Netapp FAS3140
Networking: TCP/IP troubleshooting, basic knowledge of managing CISCO devices (3020/Nexus 5000 series/CSS 11501), Linux bonding, HP APA, VLANs, OpenVPN
Converged networking: SR-IOV testing, Intel Flexible Port Partitioning, FCoE - Linux multipathing, Nexus switches (vSANs, zoning), Netapp filers (igroups)
Linux: installation and administration, kernel and application compilation from source code, troubleshooting and tunning
Provisioning: RHN Satellite (basic)
Configuration management: CFEngine (beginner), Ansible/Ansible Tower (beginner)
Server applications: Apache, MySQL, LDAP, NIS, Postfix, ProFTPd, Linux LVM, Veritas Volume Manager, Samba, NFS, Drupal, Trac
Security: iptables, ssh
Desktop applications: Xorg, LATEX, vim
Ticket management: BMC Remedy, SysAid
Project management: GanttProject
Source management: git, GitLab
2012 - now, Systems administrator, Systems architect, 3rd level support, ON Semiconductor, Brno, Czech Republic.
Providing Linux/Unix 3rd level global support and working on projects related to infrastructure,
defining infrastructure design, coordinating projects from infrastructure perspective, defining
new standards.
Support of engineering sites
- support of 5 European sites
- supporting Linux/Solaris servers, Netapp filers, NIS/SAMBA/compute servers and ?370 workstations
Systems architecture
- defining systems architecture of new platforms
- researching new technologies which could be implemented as company standards
- planning of tasks of infrastructure team members (unix, storage, network) and participating in creating overall project plan
- coordination of infrastructure team and their activities
- writing guides for operations team
3rd level support
- acting as 3rd level support to global IT Unix/Linux systems
- solving performance problems of Linux/Unix systems
- advising on how to enhance performance/stability of systems
Major projects
Oracle EBS stabilization
Migration of EBS platfrom from OVM environment to baremetal, scripted baseline performance
tesing on OVM/baremetal by using opensource tools.
Company global backup solution - POC
Testing Commvault solution on Linux servers, execution of performance tests and collection of
servers performance data.
Hyperion to EPM upgrade project
Working on architecture design of whole solution, infrastructure team members coordination,
first point of contact for project infrastructure team.
Configuration management system - POC
Evaluation of CMS which could be deployed globaly. Evaluation of Cfengine, Puppet, Chef,
Ansible, Saltstack tools. Meeting with vendors and picking up one tool which suits company
Datawarehouse upgrade project
Evaluating different Cloud technologies - meetings with vendors, defining architecture of new
platform, coordinating infrastructure team (storage, network, Unix, DBA)

2007-2012, Customer Support Engineer, Acision, Brno, Czech Republic.
Deployment and support of messaging platform solutions in mission critical environment (MAR, AAG, M+) runing above HP-UX or Linux servers, OS installation and administration (Linux, HP-UX), HW support for HP and CISCO equipment, troubleshooting of software applications, application upgrades of live systems, network traffic analysis and troubleshooting, participation on stand-by 24x7 support on a rota basis.
Customer oriented experience:
- Authoring and presentation of Root Cause Analysis documents, onsite activities, taking
care about tickets.
Personal achievements:
- Design, implementation and maintenance of Test Lab virtualized environment, hosts (HP
BL480 blades) running on Gentoo Linux with kvm/qemu hypervisor, Cisco 3020, CSS
Major projects:
- Telco systems deployment
- Travelling onsite (France, Belgium, USA, Italy, United Arab Emirates, Russia, ...) for new deployments, upgrades or testing.

2006 - 2007, IT Specialist, IBM, Brno, Czech Republic.
Command Center Operator: Monitoring of customer servers with Tivoli Enterprise Console,
responsible for creating tickets for higher support levels, contacting server administrators, ksh
scripting for daily job automation and simplification.
I am currently employed (full time job), I can be available after 2 months termination period, but can negotioate with employer sooner leaving.