Network & Security L2 Admin

Avance Consulting; Coventry; On-site; GBP 40,000 - 60,000; Full time

Job summary

A leading consulting firm is seeking experienced Network L2 and L3 administrators to support a major airline in the UK. This client-facing role requires strong analytical skills, expertise in multiple networking protocols, and excellent communication. Successful candidates will manage incidents, implement solutions, and closely work with third-party vendors to ensure optimal network performance.

Qualifications

• Strong working knowledge of OSI layers 1-7 required.
• Experience in supporting Cisco WLAN Controllers and Checkpoint Firewalls.
• Good communication skills for a client-facing role.

Responsibilities

• Monitor network performance and troubleshoot incidents.
• Configure and troubleshoot various routing & switching protocols.
• Develop relationships with customers and coordination with vendors.

Skills

Routing & Switching

Network Security

Communication

Troubleshooting

Vendor Management

Education

CCNP

CCSA

F5 Certification

Tools

Cisco WLAN Controllers

Checkpoint Firewall

F5 LTM

DNS/DHCP

NMS: BIG IQ

Job description

We are looking for Network L2 and L3 admins for one of the major airlines in the UK. This role is customer-facing and requires strong technical hands-on and good communication skills as outlined below.

Your responsibilities:

Candidates should have a strong working knowledge of OSI layers 1-7, with the ability to apply analytical and troubleshooting skill sets to solve complex problems across all networking disciplines

Monitor the performance and capability of the network using diversified tools. Identify the malfunctioning of hardware, software, and alerts events.

Triage or troubleshoot the issues & incident, within the defined areas. Follow Standard Operating Manuals and coordinate with third party vendors, customer contacts, or other IT teams to implement solutions and resolutions.

Develop strong relationships with the customer and all other support departments.

Experience in supporting the Cisco WLAN Controllers, SSID and Access Points

Experience on Implementing and troubleshooting Firewalls Security, VPNs, NAT policy, Software Patch management

Configuring and troubleshooting routing & switching protocols: Set up and troubleshoot protocols like OSPF, BGP, EIGRP, VLANs, STPs, VRF, MC-LAG, FHRP, DMVPN, NAT Policy.

Solid understanding of LAN, WAN and SDWAN concepts (including wireless LAN) with experience in supporting enterprise class routers, switches in a global and enterprise network environment.

Experience on Implementing and troubleshooting Internal and External DNS, IPAM, DHCP for IP management.

Experience in Implementing and troubleshooting F5 LTM administration, SSL Certificate renewal, iRules creation, Software Upgrade & Patching

Proactive Analysis: Review and analyze the DATA from Network Monitoring Tools to identify the best course of action to avert potential crises.

Test & Implement software patches & firmware for the network & security devices

Vendor or Supplier coordination, Problem-solving skills and ability to meet reasonable deadlines.

Major / High Severity Incidents management & Problem, Vendor Management

Essential skills/knowledge/experience:

Routing & Switching (Cisco/Juniper OEMs) - DC

DC-Core Network Protocol BGP/OSPF concepts

Checkpoint Firewall Network Security & VPN concepts

Cisco Wireless & SD WAN concepts

F5 LTM

DNS/DHCP, IPAM

CCNP, CCSA, F5 Certificate

Good to Have

AWS Networking,

NMS: BIG IQ, SolarWinds, CA Spectrum, Thousand eyes, NetBrain, Firewall Monitoring Tools (Checkpoint)

Client facing role so looking for the candidates with good communication, managing high pressure environments and negotiation skills

* Free services are subject to limitations