Network Administrator

We are looking for a Network Administrator to join one of our EU public sector clients based in Brussels. You'll ensure operations of the network, including telecommunication and/or computer infrastructure to meet the organisation’s communication needs.

The ideal candidate will be responsible for: • Operate, maintain and support enterprise network infrastructure components. • Investigate, diagnose, and resolve network incidents and performance issues to ensure service continuity. • Ensure communication performance, resilience, and security requirements are aligned with agreed service level standards. • Utilize network management and monitoring tools to analyze network load and evaluate performance metrics. • Proactively monitor network traffic to identify and mitigate bottlenecks and optimize overall performance. • Install, configure, and upgrade network components and network monitoring solutions. • Perform testing and validation activities following infrastructure upgrades and changes. • Contribute to the continuous improvement of network availability, reliability, and security. To excel in this role, you'll need: • Bachelor's degree in Computer Science, Engineering or a related technical field. • Strong hands-on expertise with Palo Alto and F5 technologies. • Solid experience with Cisco networking solutions. • Good understanding of networking concepts and communication protocols, including WAN, LAN/WLAN and VLAN. • Knowledge of network security principles, VPN technologies, and cryptographic communication techniques. • Experience operating and managing network devices and services, including routers, switches, load balancers, accelerators, firewalls and cryptographic communication devices. • Familiarity with network monitoring and performance management tools. • Strong troubleshooting and analytical skills, with the ability to identify and resolve complex network issues. Certifications you'll need: At least 1 certification from the following: • CCDP/CCNP, CCNA, CCDE/CCIE, CCAr or relevant certifications of F5, Juniper, Palo Alto • BIG-IP certified administrator • BIG-IP LTM Specialist: Maintain and Troubleshoot • BIG-IP LTM Specialist: Architect, Set up, Deploy • SANS certification related to Network Security

Quality and Reliability (QnR) is a leading Technology Group, with more than 30 years of presence in the market, delivering mission-critical digital transformation across Greece, Europe, and the broader EMEA region. QnR is an Athens Stock Exchange-listed technology Group currently undergoing a period of significant growth and transformation, having completed five acquisitions within the last 18 months. Role overview We are looking for a Network Administrator to join one of our EU public sector clients based in Brussels. You'll ensure operations of the network, including telecommunication and/or computer infrastructure to meet the organisation’s communication needs. The ideal candidate will be responsible for: • Operate, maintain and support enterprise network infrastructure components. • Investigate, diagnose, and resolve network incidents and performance issues to ensure service continuity. • Ensure communication performance, resilience, and security requirements are aligned with agreed service level standards. • Utilize network management and monitoring tools to analyze network load and evaluate performance metrics. • Proactively monitor network traffic to identify and mitigate bottlenecks and optimize overall performance. • Install, configure, and upgrade network components and network monitoring solutions. • Perform testing and validation activities following infrastructure upgrades and changes. • Contribute to the continuous improvement of network availability, reliability, and security. To excel in this role, you'll need: • Bachelor's degree in Computer Science, Engineering or a related technical field. • Strong hands-on expertise with Palo Alto and F5 technologies. • Solid experience with Cisco networking solutions. • Good understanding of networking concepts and communication protocols, including WAN, LAN/WLAN and VLAN. • Knowledge of network security principles, VPN technologies, and cryptographic communication techniques. • Experience operating and managing network devices and services, including routers, switches, load balancers, accelerators, firewalls and cryptographic communication devices. • Familiarity with network monitoring and performance management tools. • Strong troubleshooting and analytical skills, with the ability to identify and resolve complex network issues. Certifications you'll need: At least 1 certification from the following: • CCDP/CCNP, CCNA, CCDE/CCIE, CCAr or relevant certifications of F5, Juniper, Palo Alto • BIG-IP certified administrator • BIG-IP LTM Specialist: Maintain and Troubleshoot • BIG-IP LTM Specialist: Architect, Set up, Deploy • SANS certification related to Network Security