3rd Line Network Engineer - London - New! (REFGJ38)

ZipRecruiter; City Of London; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

A leading IT Managed Service provider in London is seeking an experienced 3rd Line Network Engineer to handle complex escalations, deliver network changes, and mentor 2nd line engineers. Candidates should have strong L2/L3 networking skills, firewall configuration experience, and familiarity with cloud and network automation. The role offers competitive pay and hybrid working opportunities.

Qualifications

• Experience handling advanced L2/L3 networking protocols.
• Hands-on expertise with Fortinet or Palo Alto firewalls.
• Strong background in troubleshooting and packet analysis.

Responsibilities

• Own and resolve 3rd line support tickets.
• Design and implement network changes.
• Support project delivery and mentor 2nd line engineers.
• Document solutions and perform DR/failover testing.

Skills

Advanced L2/L3 networking (OSPF, BGP, EIGRP, RIP)

Fortinet and/or Palo Alto firewall configuration

Experience with Cisco, Meraki, Aruba, Juniper

Strong troubleshooting and packet analysis

CCNP or equivalent level knowledge

Familiarity with cloud (Azure/AWS) and network automation (Python/Ansible)

Job description

3rd Line Network Engineer - London - New! (REFGJ38)

A leading IT Managed Service provider in central London who provide solutions across Cloud, Connectivity, Cyber Security & Communications, are looking for an experienced 3rd Line Network Engineer to join them.

You will come with strong L2/L3 Routing & Switching skills and hands-on expertise with Next-Gen Firewalls (Fortinet / Palo Alto).

You’ll handle complex escalations, deliver network changes, and support customer infrastructure across a diverse tech stack.

What you’ll do:

• Own and resolve 3rd line support tickets
• Design and implement network changes
• Support project delivery and mentor 2nd line engineers
• Document solutions and perform DR/failover testing

Qualifications

Key skills required:

• Advanced L2/L3 networking (OSPF, BGP, EIGRP, RIP)
• Fortinet and/or Palo Alto firewall configuration
• Experience with Cisco, Meraki, Aruba, Juniper
• Strong troubleshooting and packet analysis
• CCNP or equivalent level knowledge
• Familiarity with cloud (Azure/AWS) and network automation (Python/Ansible)

Paying well and offering hybrid working & career progression.

Please apply for full details!