Marko Prtenjača

Experience

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  CARNET - Croatian Academic and Research Network

  Jul 2016 - Dec 2018

  - Expanding the Core network (implementation of new PE device in the network)- Configuring CPE equipment and the related services at the request of the customer (Cisco, MikroTik, HP, H3C)- Network troubleshooting- Resolving Technical Issues- Upgrading data network equipment NOC shifts - handling costumer calls and e-mails, documenting, troubleshooting, escalating tohigher levels of support- Configuration of Access network devices - Cisco, MikroTik, HP, H3C- Network monitoring and maintenance- Troubleshooting customer problems- Interpreting alerts generated by monitoring systems

  • Network Engineer

    Oct 2016 - Dec 2018

  • Associate in network department

    Jul 2016 - Oct 2016
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  Hrvatski Telekom

  Dec 2018 - Nov 2022

  IP Core Network Engineer

  - IP /MPLS core network operations--> CISCO ASR9K, CISCO Catalyst 2K/6K/7K--> Juniper MX960/MX480/MX104--> Huawei NE40E Series / ATN950D / ATN910C- Transport core network development (MPLS, RSVP, BGP, OSPF, L2 VPN, L3VPN, etc.)- Developing, operating and maintaining Arbor Sightline from potential DDoS attacks on our and our customer's equipment and services- Developing automation tasks via Ansible in Core network- Developing, operating and maintaining Network Monitoring System Show less

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  Byterunner GmbH & Co. KG

  Nov 2022 - now

  Network Consulting Engineer

  Configured and managed Firepower appliances to enhance network security and threat detection capabilities.Implemented and maintained Cisco Identity Services Engine (ISE) for comprehensive network access control and policy enforcement.Deployed and administered Cisco Wireless LAN Controllers (WLC) to ensure centralized management and optimization of wireless networks.Designed and implemented Meraki solutions, including routers, switches, and access points, to improve network efficiency and scalability.Conducted regular security audits and assessments to identify vulnerabilities and implement appropriate mitigation strategies.Collaborated with cross-functional teams to troubleshoot and resolve network issues in a timely manner.Provided technical guidance and training to team members to enhance their skills and knowledge. Show less