2024 ? 2025: Maintained hybrid Windows, Linux, and VMware infrastructure

Role: Systems & Network Engineer

Customer: VOXTRONIC GmbH (Remote, Austria)

Tasks:

• Maintained hybrid Windows, Linux, and VMware infrastructure across distributed environments
• Supported network connectivity, VPNs, firewall rules, and Intune-managed endpoints
• Operated monitoring systems (Zabbix, Grafana) and resolved L2/L3 incidents
• Ensured high availability and created operational documentation

2023 ? 2024: Delivered second-line network and systems support

Role: Network Support Engineer (L2)

Customer: S&K Solutions GmbH (Germany)

Tasks:

• Delivered second-line network and systems support for enterprise customers
• Troubleshot VPN, firewall, routing, and connectivity issues
• Managed users, access, and hardware configuration

2022 ? 2023: Monitored mission-critical messaging infrastructure

Role: NOC Specialist

Customer: LINK Mobility (Poland)

Tasks:

• Monitored mission-critical messaging infrastructure in 24/7 NOC environment
• Handled incident response, escalation, and alert optimization
• Worked with Linux-based monitoring and observability platforms

2019 ? 2022: Deployed and supported live-event IT and network infrastructure

Role: IT Field Technician

Customer: IMG Arena (Global)

Tasks:

• Deployed and supported live-event IT and network infrastructure worldwide
• Performed on-site diagnostics, hardware installations, and secure data uplinks