Ivan Ivanovic

Experience

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  RCUB

  Aug 2008 - Feb 2012

  Network Engineer

  • RCUB/AMRES helpdesk 3rd line support.• Linux administration (CentOS, Ubuntu).• Configuration, maintenance and troubleshooting different network equipment. - Cisco 2950, 2960, 3550, 3560, 3750, 6500 - Cisco 1800, 3600 - Ironport Web S670, Ironport M160 - Juniper EX3200, EX2200, MX480• Linux shell scripting – custom monitoring scripts, log parsing, backup automatization…..• Deployment and maintenance of Cisco Ironport WEB security appliances in AMRES (Academic Network of Serbia).• Integration of national institutions to the AMRES network• Virtualization and maintenance of AMRES/RCUB servers/services (Citrix XenServer, ProxMox, KVM).• Deployment and maintenance of FreeBSD based storage (iSCSI, NFS, CIFS) in RCUB.• Participating in the design and development of network monitoring tools based on SNMP and SYSLOG protocols (http://netiis.rcub.bg.ac.rs) - Design, testing, implementation and customer support.• Participating in the design and development of tool for network traffic analysis based on NetFlow protocol - Design, testing, implementation and customer support (www.icmynet.com / www.netvizura.com).• Teaching CCNA courses at Cisco Network Academy.• Teaching CCNP courses at Cisco Network Academy.• Participating in the design and implementation of AMRES eduroam wireless service monitoring system• Participating in the international Geant3 project: - SA2T3 task - Perfsonar - Testing and bug reporting of NMS modules. - NA3T4 task (Coordinator in front of AMRES) - Best Practice Documents Show less

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  RCUB Cisco Networking Academy

  Jan 2010 - Dec 2013

  CCNA, CCNP, CCNA security - Cisco certified instructor

  • Teaching CCNA R&S courses• Teaching CCNP R&S courses• Certifying Cisco instructors

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  University of Belgrade Computer Center

  Feb 2012 - Dec 2013

  Head Of Network Department

  • Leading Networking/UNIX team in RCUB• RCUB Cisco networking academy administration activities• Coordinator for Na3T4 task on Geant project in front of AMRES • Working with the international team during the development of the BPD documentation.• Organizing workshops and presenting results of the project on the following conference: • YuInfo 2013 (Serbia, Belgrade) – Centralized system for web traffic filtering • IT konferencija 2013 (Montenegro, Zabljak) - Workshop host -OpenLdap hands-on-lab exercise (Author) • Practical use of NetFlow technology presentation • TELFOR 2012 (Serbia, Belgrade) - Monitoring of RADIUS infrastructure (second author) • Banjaluka Workshop (BiH, Banjaluka) - Workshop host - OpenLdap hands-on-lab exercise - Management and monitoring of network infrastructure presentation - NetFlow monitoring presentation • IPv6 Workshop 2012 (Finland, Helsinki) - IPv6 status in BUCC/AMRES • EUNIS conference 2012 (Portugal, Vila Real) – Impact of undesirable traffic on electrical power consumption in ICT rooms • Campus Network Monitoring Workshop 2012 (Czech Republic, Brno) – Ironport Web proxy servers • Macedonia workshop 2011 (Macedonia, Skopje) - Practical use of Netflow technology • Terena conference-TNC 2011 (Czech Republic, Prague) - Monitoring of Electrical Power Consumption in ICT rooms. • YuInfo conference 2011 (Serbia, Belgrade) - Recomendation for monitoring of 802.11 b/g/n wireless infrastructure. • YuInfo conference 2010 (Serbia, Belgrade) - Recommendation for improvement of network management security. • Network monitoring workshop for GN3/NA3/T4 2010 (Serbia, Belgrade) - Draft on network management architecture - ICmyNet.MIB tool - SNMP/MIB browser Show less

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  Vip mobile d.o.o.

  Dec 2013 - Apr 2021

  • Maintenance of corporate/mobile core IP MPLS network (planning and operation)• IPSec support for end customer (M2M and VAS services)• Implementation of network and services monitoring based on SNMP (OpsView, Check_MK) and Netflow (Scrutinizer, NFSEN) protocols.• Administration of remote access - VPN (AnyConnect, Clientless SSL VPN) • Maintenance and configuration of the security equipment• Planning the design of the VIP Shop network infrastructure• Design and implementation of centralized WiFi network based on Cisco WLC• Maintenance of employee user database for remote access based on Cisco ACS (tacacs and radius)• Configuration and maintenance of CISCO ACE load balancer• Bash scripting – creating custom Nagios plug-in for specific services• Periodical 24/7 on call support• Working on budget/capacity planning• Configuration, maintenance and troubleshooting of different network equipment. • Cisco 2950, 2960, 3550, 3560, 3750, 3850, 4900, 6500, 6800 • Cisco 1800, 3600, C7600, ASR1004, ASR9K • Cisco WLC 2504, WLC 5508, Ap1700, Ap2700 • Huawei Eudemon E8000 firewall • ASA 5510, 5520, 5585 and FWSM • Nokia 7750 SR-7 • Citrix Netscaler SDX, VPX Show less

  • CISO and IP Team Leader

    Mar 2020 - Apr 2021

  • IT Infrastructure and IP networks Team Leader

    Apr 2019 - Feb 2020

  • IP Network Team Leader

    Jun 2017 - Apr 2019

  • IP Network Lead Expert

    Apr 2016 - Jun 2017

  • IP Network Expert

    Dec 2013 - Apr 2016
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  A1 Srbija d.o.o.

  Apr 2021 - Jan 2023

  CISO and IP Team Leader
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  BlueCat

  Jan 2023 - now

  • Director Customer Care

    Dec 2023 - now

  • Customer Care Manager

    Jan 2023 - Dec 2023