Balázs Valentin Leyrer
@balzsvalentinleyrer
IT Systems & Network Specialist at Soproni Vízmű Zrt., securing NIS2 infrastructure and managing a 70+ server environment.
HungaryWhat I'm looking for
At Soproni Vízmű Zrt., I manage network and server operations for critical infrastructure in compliance with NIS2 cybersecurity standards. I administer a hybrid environment of 70+ servers and addressed single points of failure, VLAN isolation, and unsecured Telnet protocols.
I also develop Python and PHP scripts for automated reporting, system health checks, and database performance metrics. Previously, at I-New Hungary Kft., I monitored GSM/MVNO networks, handled L1 support tickets, and escalated incidents under strict SLA turnaround requirements.
Experience
Work history, roles, and key accomplishments
IT Systems & Network Specialist
Soproni Vízmű Zrt.
Jan 2025 - Present (1 year 9 months)
Managed network and server operations for critical infrastructure in compliance with NIS2 cybersecurity standards. Administered a ~70-server hybrid environment and developed automation scripts for reporting and monitoring.
Network Monitoring Technician & L1 Support
I-New Hungary Kft.
May 2023 - Jan 2025 (1 year 8 months)
Monitored international GSM/MVNO networks with strict SLA ticketing turnaround. Handled Level 1 support tickets, incident escalation, and mobile network service verification.
IT Helpdesk Support (Internship)
Local Government of Sopron
Jul 2021 - Sep 2021 (2 months)
Resolved hardware/software user support tickets, workstation provisioning, and peripheral maintenance.
Education
Degrees, certifications, and relevant coursework
Hewlett Packard Enterprise
Certificate, Linux Fundamentals
2025 - 2025
Completed HPE Linux Fundamentals (GL120) in 2025.
Itiner Academy
Certified Specialist, Digital Platform
2025 - 2025
Certified Specialist in Digital Platform, completed in 2025.
University of Sopron
Bachelor of Science, Business Information Systems
2021 - 2025
BSc in Business Information Systems from the University of Sopron, completed in January 2025.
Cisco Networking Academy
CCNA: Scaling Networks, Networking
2021 - 2021
Completed Cisco CCNA: Scaling Networks in 2021.
Cisco Networking Academy
CCNA: Connecting to Networks, Networking
2021 - 2021
Completed Cisco CCNA: Connecting to Networks in 2021.
Vas- és Villamosipari Technical School
State Vocational Certification, IT Systems Administration
2020 - 2021
State vocational certification as IT Systems Administrator, completed in June 2021.
Cisco Networking Academy
CCNA: Essentials, Networking
2020 - 2020
Completed Cisco CCNA: Essentials in 2020.
CompTIA
Linux Essentials, Linux
2020 - 2020
Completed CompTIA / NDG Linux Essentials in 2020.
Cisco Networking Academy
Cybersecurity Essentials, Cybersecurity
2020 - 2020
Completed Cisco Cybersecurity Essentials in 2020.
CompTIA
Linux Unhatched, Linux
2019 - 2019
Completed CompTIA / NDG Linux Unhatched in 2019.
Cisco Networking Academy
CCNA: Introduction to Networks, Networking
2019 - 2019
Completed Cisco CCNA: Introduction to Networks in 2019.
Cisco Networking Academy
Introduction to Cybersecurity, Cybersecurity
2019 - 2019
Completed Cisco Introduction to Cybersecurity in 2019.
Availability
Location
HungaryAuthorized to work in
Salary expectations
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