System & Network Administrator

Mate Burazer

2degree papers
4certifications
2015in networking since
01

About me

Portrait of Mate Burazer

I'm Mate Burazer. I've been around systems and networks in Croatia since my first apprenticeship in 2015, and for the last few years I work on customer premises equipment at A1 Hrvatska: testing it, breaking it in the lab and sending the results back to the vendors.

As a kid I wanted root on everything I owned, including a couple of odd mobile operating systems such as MeeGo. That habit turned into a job, and I never got bored of it. Two degree papers later, one about Wi-Fi security and one about network traffic security, I have a master's from TVZ. Away from the keyboard: games, books, films, music and amateur radio.

What I work with

mate.burazer404@gmail.com
02

Education

Vocational School of Vice Vlatković

2013 – 2017 · Computer Technician

School site

Zagreb University of Applied Sciences

2017 – 2021 · Bachelor of IT

Module: Office organisation and informatisation

More information

Zagreb University of Applied Sciences

2021 – 2023 · Master of IT

Module: Computer Systems, specialisation in Computer Networks and Systems

More information
03

Certificates

CCNAv7 — Switching, Routing & Wireless

Cisco Networking Academy

View certificate

Machine Learning for Business Professionals

Course completion certificate

View certificate
04

Work experience

  1. CPE Activation Specialist

    A1 Hrvatska d.o.o. · Jan 2025 – present · Zagreb

    • Test and validate CPE devices across FTTH/FTTR, DOCSIS, xDSL, MBB and FWA before they ship to customers
    • Run firmware test cycles: Wi-Fi performance measurements, bug reports, regression checks
    • Watch device behaviour in ACS platforms and internal telecom systems; work with TR-069 and untangle TR-181 data-model issues found during testing
    • Chase production issues, improve device stability, support rollouts of new firmware and technologies
    • Work with engineering, vendors and support on device behaviour, service quality and the documentation around all of it
  2. Junior CPE Activation Specialist

    A1 Hrvatska d.o.o. · Sept 2023 – Dec 2024 · 1 yr 3 mo · Zagreb

    • Customer-side CPE activation and remote support
    • Provisioning, modem configuration and fault triage
  3. System Administrator

    HBOR — Croatian Bank for Reconstruction and Development · Feb 2021 – Sep 2021 · 8 mo · Zagreb

    • Collaboration systems: Skype for Business, Microsoft Teams, Webex
    • Mail: Exchange, Exchange Online, mail gateway, archiving
    • Mobile Device Management (MDM) enrolment
    • Print management system maintenance
    • Network management and VPN configuration
    • Network storage and BitLocker encryption
    • Third-level support
    • Scripting the repetitive parts of the job
    • OS deployment over PXE, BIOS setup, hardware and peripheral maintenance
    • Coordinating delivery dates for goods and services
    • Running the technical support service queue
  4. Telecommunication Technician — Apprentice

    Grbić d.o.o., telecommunication services · Jun 2015 – Jul 2015 · seasonal · Zadar

    • Router configuration and setup
    • Telephone line repairs
    • Troubleshooting the telephone exchange
05

Projects

HBOR hardware refresh project
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IBM Maximo SCCD interface
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Hardware and software refresh with automated records

IBM Maximo SCCD · UI.Vision RPA · HBOR, Feb – Jun 2021

Replaced ageing hardware across HBOR and handed new equipment to every employee, each one with written instructions. Every machine went into IBM Maximo SCCD, and the repetitive clicking around that database was automated with UI.Vision RPA macros.

  • IBM Maximo SCCD
  • UI.Vision RPA
  • Hardware deployment
IBM Maximo details
Aurelius Multitool home screen
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Aurelius Multitool, a Windows utility suite

aureliusmultitool.com

One launcher that bundles service monitoring, troubleshooting tools, media utilities and a couple of games, so the things I open every week live in one place instead of five folders.

  • Windows
  • Utilities
  • System monitoring
Check it out
Wi-Fi security degree paper
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Degree paper — Wi-Fi security

Bachelor's degree, TVZ · May 2021

How wireless security went from WEP through WPA and WPA2 to WPA3, which man-in-the-middle attacks still take each generation down, and what actually holds up against them.

  • WEP / WPA / WPA3
  • MITM attacks
  • Wireless security
Read the paper
Network traffic security degree paper
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Degree paper — Security of network traffic

Master's degree, TVZ · Jun – Sep 2023

The main classes of attack against network traffic and the countermeasure that answers each one.

  • Network security
  • Attack vectors
  • Countermeasures
Read the paper
Samba 4 domain controller diagram
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Samba 4 Domain Controller

Samba 4 · Ubuntu Server

An Active Directory compatible domain controller on Ubuntu Server: directory services, group policy and user authentication, all from Samba 4.

  • Samba 4
  • Ubuntu Server
  • Active Directory
Samba homepage
06

Hobbies

Amateur radio

Callsign 9A3CEN

My station log lives on QRZ.com. Press the little speaker next to the callsign chip up top and you'll hear it sent in CW.

QRZ.com profile

Local AI models

Own hardware, own rules

Quantised GGUF models running on my own box, inference tuning, small agents. Mostly to see where they get things wrong.

Home lab

Same topics as the day job

Off the clock I still play with routers and CPE: Wi-Fi surveys, firmware updates, TR-069 experiments on my own network.