Senior Network Engineer

Lockton; London; Hybrid; GBP 60,000 - 85,000; Full time

Job summary

A leading company in insurance brokerage is seeking a Senior Network Engineer to enhance their network infrastructure. This role involves deploying, managing, and optimizing enterprise networks, emphasizing security and performance improvements. Candidates should bring extensive experience with networking solutions like Cisco and F5, complemented by strong problem-solving abilities.

Qualifications

• Significant experience in enterprise networking with hands-on expertise.
• Strong knowledge of routing protocols and switching technologies.
• Experience with firewall configurations and VPN setups.

Responsibilities

• Deploy and manage network infrastructure, ensuring security and availability.
• Troubleshoot network issues and collaborate on IT initiatives.
• Document processes and improve network performance.

Skills

Palo Alto Firewalls

Cisco SD-WAN

Aruba wireless networking

F5 load balancing

Routing protocols

Network automation

Problem-solving

Education

Bachelor's or Master's degree in Computer Science

Tools

Python

Ansible

SolarWinds

PRTG

Wireshark

Job description

Job details

General information

Reference
003598

Vacancy location
Location

United Kingdom, London, London
Work Place

Hybrid
Region

UK
Vacancy details
Job Profile

Lockton - Experienced Professional
Title

Senior Network Engineer
Description

Lockton is the world's largest independent insurance broker. Dedicated to delivering innovative solutions and exceptional service. We have a fantastic opportunity for a skilled Engineer to join our team and contribute to our mission of excellence.

Job Summary

We are looking for a Senior Network Engineer with significant experience in enterprise network design, implementation, and security, with expertise in Palo Alto firewalls, Cisco SD-WAN and networking, Aruba wireless, and F5 load balancing solutions.

The ideal candidate will be responsible for deploying, managing, and optimizing network infrastructure, ensuring high availability, security, and scalability.

As a Senior Network Engineer, you will play a key role in network troubleshooting, security enhancements, and performance tuning, while collaborating with cross-functional teams to support business continuity and IT modernization initiatives.

Key Responsibilities

• Network Infrastructure Deployment & Management

• Security & Firewall Administration

• SD-WAN & WAN Optimization

• Load Balancing & Network Optimization

• Wireless & LAN Infrastructure

• Network Troubleshooting & Incident Response

• Documentation & Process Improvement

Candidate Profile

Essential

Significant experience in enterprise networking, with hands-on expertise in:

• Palo Alto Firewalls (PAN-OS, GlobalProtect VPN, Threat Prevention)
• Cisco SD-WAN (Viptela/IOS XE) / Catalyst / ACI
• Aruba wireless networking, ClearPass NAC
• F5 BIG-IP (LTM, GTM, ASM) for load balancing
• Strong knowledge of routing protocols (BGP, OSPF, EIGRP) and switching technologies.

Experience with firewall rule configurations, VPN setups, and intrusion prevention systems.

Familiarity with network automation (Python, Ansible) and monitoring tools (SolarWinds, PRTG, Wireshark).

Strong problem-solving and troubleshooting skills, with the ability to analyze packet captures and performance logs.

Preferred

Certifications: CCNP, PCNSE (Palo Alto), F5-CA or F5-CTS, Aruba Certified Professional (ACP).

Experience with cloud networking (Azure, AWS, GCP) and hybrid cloud architectures.

Knowledge of Zero Trust Security Models and SIEM integration.
Education

Bachelor's or Master's degree in Computer Science, Information Technology, or a related field (or equivalent work experience).

Custom section 3
Scheduled

Full Time Permanent