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Network Security Engineer

OpticoreIT Limited london Posted 16 Oct 2026 Closing: 15 Nov 2026
Permanent Hybrid
£111 - £129

Role Description & Technical Scope

Opticore IT is a specialist Network Engineer and Project Management consultancy offering a wide variety of opportunities to work within fast-paced,challenging environments across our client base spanning multiple sectors including Finance, Broadcast Media, Telecommunications and more.

Opticore IT are currently searching for a Network Security Engineer to join a customer environment supporting a major network security project, this opportunity will work alongside an existing Palo Alto consultant from Opticore. This will be an initial 6 month contract inside IR35 with scope to extend and requires one day onsite per week in Central London.

This opportunity will work alongside an existing Opticore employee, providing hands-on engineering and operational support throughout the project working closely with customer site to solve complex technical challenges they are facing.

What you'll be doing:

  • Work closely with the existing Opticore Palo Alto consultant to support delivery of the project.

  • Provide hands-on Palo Alto Networks engineering and operational support within the customer

  • environment.

  • Manage, troubleshoot and optimise Palo Alto Networks firewalls, including active/active high-availability deployments.

  • Use Strata Cloud Manager (SCM) to manage, monitor and administer the Palo Alto security environment.

  • Troubleshoot complex firewall, HA, connectivity and performance issues.

  • Support firewall policy, security rules, NAT and configuration management.

  • Provide technical support for proxy infrastructure and associated security policies.

  • Work collaboratively with the customer's network, security and infrastructure teams.

  • Assist with firewall upgrades, configuration changes, migrations and maintenance activities.

  • Support the migration and transformation of legacy firewall and proxy technologies where required.

  • Participate in technical workshops, troubleshooting sessions and project activities.

  • Contribute to technical documentation, operational procedures and knowledge transfer.

  • Act as a trusted technical resource within the customer's security engineering team.

What you'llbring:

  • Strong knowledge of Palo Alto Network Firewalls

  • Extensive experience with Palo Alto Active/Active

  • Strong knowledge of Strata Cloud Manager

  • Strong technical stakeholder and enterprise customer management

Diversity:

At Opticore IT we embrace diversity and are committed to equal opportunities. We actively recruit for an inclusive and diverse workforce and as such, want to ensure we do everything we can to support your application.

We want you to feel empowered to let us know if you require any adjustments to be made with your application or interview process so please speak to our recruitment team.

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Key Details
  • Date Posted: 16 Oct 2026
  • Location: london
  • Employment: Permanent
  • Workplace: Hybrid
  • Domain: IT & Technology
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OpticoreIT Limited
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Enterprise technology firm or security consultancy operating across the UK digital defense ecosystem.

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