Senior Network Security Engineer in Bristol

Company: Energy Jobline ZR
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Job Description:

Senior Network Security Engineer

Central Bristol (various hybrid working arrangements available depending on location).

£65,000 to £75,000 + bonus, 25 days holiday, good contributory pension.

What You’ll Be Doing

  • Configuring and optimising security tooling such as segmentation platforms, Sophos, Mimecast, XDR solutions, vulnerability scanners and hardening baselines.
  • Managing firewalls, VPNs, secure remote access and segmentation controls.
  • Improving detection and response by working closely with SIEM/SOC teams.
  • Ensuring critical logging, monitoring and compliance standards are always met.
  • Automating deployments and controls using PowerShell, Python, Terraform or similar tools.
  • Supporting vulnerability assessments and driving remediation across the estate.
  • Contributing to secure design reviews across applications, infrastructure, and cloud services.
  • Incident response experience is desirable but not essential.

We’re looking for someone with

  • Strong hands-on experience with network infrastructure and security, segmentation, firewalls, endpoint security, XDR and access control .
  • Experience securing Cloud ( Azure and/or AWS) and on-premise environments.
  • A security-first mindset and confidence working with both technical and non-technical stakeholders.
  • Knowledge of frameworks such as NIST, ISO 27001, CIS, GDPR would be .
  • A proactive, accountable approach- you like owning outcomes.

Why This Role Stands Out

  • Take ownership of a modern security tooling ecosystem
  • Influence architectural decisions
  • Drive meaningful improvements across the whole tech estate
  • Work in a supportive, forward-thinking security team

Reasonable Adjustments:Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients.

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Posted: September 27th, 2026