Eltrak Group
senior network engineer
Sep 22, 2026 · Eltrak Group
Κηφισιά·Sep 22, 2026
ΚηφισιάOn SiteΠληροφορικήPermanentFull Time
JOBILY AI SUMMARY
What you'll do
- Manage and resolve issues across enterprise LAN, WAN, Wi-Fi, and Internet networks
- Configure, manage, and support Cisco switches, routers, firewalls, VPNs, and wireless infrastructure
- Manage VLANs, routing, switching, DHCP, DNS, NAT, and network segmentation
- Operate, maintain, and improve SD-WAN and Next-Generation Firewall environments
- Monitor network availability, capacity, performance, and security
- Troubleshoot complex technical issues and perform root-cause analysis
- Collaborate with SOC/NOC teams on network and cybersecurity incidents
- Support connectivity for servers, virtualization platforms, cloud services, and critical applications
- Support enterprise IP telephony and Cisco communications infrastructure
- Coordinate with ISPs, telecommunications providers, and technology vendors
- Maintain and update network diagrams, configurations, procedures, and technical documentation
- Identify network risks, capacity constraints, and opportunities to improve infrastructure performance, resilience, and security
- Evaluate new networking technologies, hardware, and software and help plan infrastructure evolution
- Participate in IT infrastructure, cybersecurity, business continuity, and digital transformation projects
Key requirements
- 4+ years' experience
- Enterprise LAN/WAN/Wi-Fi/Internet network management
- Cisco networking; TCP/IP, VLANs, routing, and switching; DHCP, DNS, and NAT
- VPNs and network segmentation; SD-WAN; Next-Generation Firewalls
- Network security and cybersecurity; network monitoring and performance management
- Troubleshooting and complex technical problem solving; root-cause analysis
- Network documentation; Cisco CUCM and IP telephony; Microsoft/Azure and VMware; English
- Computer Science / Telecommunications Engineering / Computer Networkingpreferred
Benefits
- Competitive compensation package, modern and pleasant work environment, and additional healthcare and pension coverage.
- Training and development opportunities with prospects for professional growth are provided, along with a company shuttle bus.
About the job
Ο όμιλος εταιρειών ΕΛΤΡΑΚ αναζητά να προσλάβει Senior Network Engineer στη Κηφισιά. Ο/Η Senior Network Engineer θα έχει την τεχνική ευθύνη για τη λειτουργία, την ασφάλεια, την απόδοση, τη διαθεσιμότητα και τη συνεχή βελτίωση της εταιρικής δικτυακής υποδομής. Πρόκειται για μία hands-on τεχνική θέση…


