Senior Network Security Engineer

Senior Network Security Engineer

Near Epsom | Hybrid (2 days onsite)

Permanent | On call (1 in 3 weeks) | Alternating early / late shifts (7am - 3:30pm and 9:30am - 6pm)

This is a busy, hands on engineering role within a large, regulated financial services environment, ideal for someone who wants to own and evolve a modern network estate rather than sit in a purely BAU or consultancy position.

A large programme of work is kicking off soon, so you'll be stepping into a high impact role, contributing to real change across network and security infrastructure.

You'll take a lead role across Palo Alto firewalls, core networking and security tooling, helping shape a resilient, scalable and secure environment.

Key Responsibilities

Own and optimise the Palo Alto firewall estate

Support core networking (LAN/WAN, Wi-Fi, remote access, load balancing)

Monitor and respond to security incidents (SIEM / EDR)

Improve network security, segmentation, and resilience

Manage vulnerability scanning and patching (Qualys)

Lead and contribute to network and security projects

Produce clear, accurate technical documentation

Tech Stack

Palo Alto | Cisco (L2/3) | Aruba | SIEM | EDR | Qualys

What We're Looking For

Minimum 5 years' experience in networking (essential)

Strong hands-on experience with networking fundamentals and technologies (Cisco, LAN/WAN)

Exposure to security tools or environments (SIEM, EDR, vulnerability management), but deep cyber expertise is not required

Desire to grow into a Network Security SME - this role offers that pathway

Excellent communication skills, with the ability to engage stakeholders at all levels

Strong documentation skills and high attention to detail

Someone proactive who can hit the ground running in a fast-paced environment

Good understanding of network/security architecture, but this is a hands-on engineering role, not consultancy

Why Join?

Clear opportunity to grow into a Security SME

Real ownership of network and security engineering

Work on a major transformation programme

Strong progression and training opportunities

Competitive salary, benefits, plus on call/overtime

Refer a friend and earn a retail voucher worth up to £500!

Unfortunately, due to high numbers of applications, we are only able to respond to shortlisted applicants. If you have not heard from us within 5 days, please assume that you have not been shortlisted on this occasion.

By applying for this vacancy, you accept Lloyd Recruitment Services Privacy and GDPR Policy which can be found on our website and therefore gives us consent to contact you.

Lloyd Recruitment Services are acting as a recruitment agency in relation to this vacancy and are an equal opportunities employer.

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