Network Administrator
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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.
Requirements
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
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