Curriculum Vitae (EN)

SUMMARY

Planning and tuning of large UNIX/Linux  systems. IT infrastructure capacity planning. Datacenter planning.
Virtualization with ESX and KVM on i386 architecture. 
OpenStack Cloud infrastructure.
IBM LPAR on Power architecture, Solaris zones on SPARC.
Ansible automation of full stack: servers, applications, load balancers, network.

13 years of experience in telecom industry with telco-grade availability mindset.

Currently working as SaaS engineer involved in full automation of SaaS stack.

SKILLS

  • RedHat Enterprise Linux, Linux Containers & Docker, Debian Linux
  • System and Access Management: RedHat Satellite, IPA
  • Automation: Ansible, Ansible Tower
  • VMware ESX virtualization, KVM virtualization, OpenStack, Kubernetes
  • Sun Solaris, Solaris zones/containers
  • IBM AIX, IBM pSeries virtualization: HMC, VIO, LPAR
  • Clustering:  IBM PowerHA, HP ServiceGuard, Redhat Cluster, Veritas Cluster File System, Veritas Cluster Server
  • IBM LoadBalancer, HAProxy, keepalived, F5 BIG-IP
  • Apache, nginx, Cloudflare, DNS
  • Backup: Bacula, IBM Tivoli Storage Manager
  • SAN, FC, iSCSI
  • relational databases (PostgreSQL, MySQL/MariaDB), Hadoop
  • SQL, Python, YAML, jinja2, shell scripting
  • Git, Phabricator, Gerrit, Jenkins

EXPERIENCE

Itslearning AS 07/2016 - present
Senior SaaS Operation Engineer

Responsibilities:

  • system administration & troubleshooting
  • planning & capacity analysis
  • service configuration and automation of the Fronter cloud SaaS platform

Selected projects:

  • Network consolidation of SaaS platform
  • Automation of all components of SaaS stack on multiple environments
  • Redesign of the integration services

VIPnet telecom (Telekom Austria Group)  06 / 2003 - 06/2016
Expert UNIX Administrator

Responsibilities:

  • Planning, implementation, troubleshooting and performance tuning of large UNIX systems
  • RedHat Enterprise Linux and automation
  • Sun Solaris, Solaris zones/containers, SAN connectivity, Solaris mpxio and Veritas, IBM AIX, HP-UX
  • UNIX/Linux network administration, troubleshooting & performance tuning
  • IBM pSeries virtualization: HMC, VIO, LPAR design, Live Partition Mobility - implementation, performance tuning
  • DNS (Bind): infrastructure, performance, redundancy, security

Selected projects:

  • Hadoop for DWH (core team member)
  • Patch and configuration management (leader)
  • DNS infrastructure redesign, redundancy and hardening project (leader)
  • secured UNIX web hosting (leader)
  • NFV infrastructure based on ESX and KVM and OpenStack (IT infrastructure core team member)
  • Siebel CRM implementation (IT infrastructure core team member)
  • Implementing RHEL in Telecom environment, automatization and virtualization
  • Oracle hosting databases migration and consolidation (leader, system infrastructure coordinator)
  • Enterprise storage consolidation & migration(core team member)
  • Hosting services and solutions for members (OpCos) of MAG corporate group (core team member)
  • WAP-GW, radius, Vodafone Live hosting (core team member)
 

Rudjer Boskovic Science Institute    04 / 2001 - 05 / 2003
UNIX system administrator   

Responsibilities:

  • UNIX system administrator (Solaris, Linux, FreeBSD)
  • Informix DBA
  • Database developer, web developer, PHP programmer

Selected projects:

  • Scientific Information System - Natural Sciences and biomedicine
  • Interlibrary Loan System and Document Exchange System (IRB, Library)
  • Improvements in methods of information systems development (Ministry of Science and Technology project)

EDUCATION
(NOKUT recognition ref. 68672)

Faculty of Electrical Engineering and Computing, Zagreb    2001 - 2006
Master of Science, Computer Sciences , Multilevel Database Security

Faculty of Electrical Engineering and Computing, Zagreb    1996 - 2001
Graduate Engineer of Computing (Master Engineer) , UNIX Security, Multilevel Database Security          

CERTIFICATES

Red Hat Certified Engineer RHCE (160-038-691)
Red Hat Certified System Administrator RHCSA (160-038-691)

LANGUAGES

Norwegian (B1)
English (fluent)
Croatian (native)
German (basic)

VOLUNTEERING

Norseman Extreme Triathlon 01/2017 - present
Data Specialist

  • ER model design
  • Relational Database Model implementation

OpenStack 03/2017 - present

  • OpenStack-Ansible project
  • OpenStack documentation