Network Infrastructure Specialist

4 weeks ago


Portsmouth, United Kingdom Spectrum IT Recruitment Full time
Job Title: Network Infrastructure Specialist

About the Role:
We are seeking an experienced Core Network Engineer to join our client's team in Portsmouth, UK. This is a unique opportunity to work with cutting-edge technologies and be part of shaping the future of broadband in the South of England.

The Ideal Candidate:
You will have 5+ years of network engineering experience in an ISP environment, with strong Juniper expertise and certifications such as JNCIS-SP or JNCIS-ENT preferred. You will also have deep knowledge of IPv4/IPv6, EVPN, MPLS, VXLAN, CGNAT, DHCP, DNS, and GPON networks. Experience with FTTH platforms, particularly OLTs, is essential. Strong troubleshooting and network performance skills are also required.

Key Responsibilities:
Configure and manage Layer 2 and 3 network elements (routers, switches, CGNAT, firewalls/VPNs, OLTs). Optimise traffic and manage peering and transit connections. Monitor and troubleshoot network performance, resolving issues effectively. Perform upgrades, security patching, and technology refreshes. Maintain network documentation and best practices. Collaborate with vendors and support teams.

Benefits:
This role offers a competitive salary of up to £55,000, plus annual bonus, 25 days of annual leave, private medical cover, critical illness, and life assurance, pension scheme, and opportunities to work with cutting-edge technologies in a collaborative team.

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