CV

Senior Network Security Engineer

CV-Library Sheffield, South Yorkshire Posted 15 Sep 2026 Closing: 01 Jan 0001
Permanent Hybrid SC Cleared Featured
£50000 - £70000/annum Performance Bonus + more benefits

Role Description & Technical Scope

Senior Network Security Engineer

Permanent

£50,000 - £70,000

10-15% Performance Bonus + more benefits

Location: Hybrid - Office in Sheffield City Centre

Your new company

Due to continued organisational growth, I'm back on the lookout for some talented Network Security Engineers to work in a managed service environment in Sheffield. This is a fantastic opportunity to progress your network security career with one of the UK's most renowned organisations in a managed service environment.

Your new role will involve

Joining the existing Network Security team In tandem with the SOC

Looking for exposure to vulnerabilities

Setting up, maintaining, patching and upgrading customer's firewalls (typical vendors: Cisco, Fortinet, Palo Alto, Checkpoint)

Actively working on client Firewalls

Completing firewall upgrades

Running IPS and IDS

Performing log reviews

General BAU e.g., VPN creation

Facing a variety of clients and helping set up, maintain, monitor, and secure their networks

Dealing appropriately with major incidents

Making sure appropriate steps are in place and followed for the remediation of vulnerabilities

Performing safe upgrades and patches where required

Providing accurate and informed security insights internally and with the organisation's customers

Making sure levels of incident response are appropriate

What you'll need to succeed

A good background in Network Security within a large scale complex organisation

Experience setting up, maintaining, and upgrading firewalls

In depth experience of any of the following: Fortinet, Cisco ASA/Firepower, Checkpoint or Palo Alto is crucial

Experience within a large scale, complex organisation is necessary - managed service/consultancy/B2B prior experience would be highly beneficial too

Recent experience dealing with major incidents with networks and firewalls

Top end salaries for this role will require some industry certifications (e.g. Fortinet NSE 4/ NSE 5/ NSE 6/ NSE 7, Checkpoint CCSA/CCSE, Palo Alto PCNSA/PCNSE, Cisco CCNA/CCNP) and in depth experience of the above.

Eligibility to get SC clearance

What you'll get in return

In addition to a competitive salary of between £50,000 - £70,000 depending on relevant industry experience and live certifications, you can look forward to the following benefits and more:

10% on target bonus - can be paid up to 15% based on performance

Study leaves and Network Security certifications paid for

Internal progression opportunities

25 days annual leave (plus bank holidays)

Generous Pension Scheme

Flexible working arrangements

Company specific benefits

What you need to do nowIf you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.

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Key Details
  • Date Posted: 15 Sep 2026
  • Location: Sheffield, South Yorkshire
  • Employment: Permanent
  • Workplace: Hybrid
  • Clearance: SC Cleared
  • Domain: IT
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CV-Library
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Enterprise technology firm or security consultancy operating across the UK digital defense ecosystem.

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