Senior Network Security Engineer in London

Senior Network Security Engineer in London

London Full-Time 65000 - 75000 £ / year (est.) Home office (partial)
Sanderson Recruitment

At a Glance

  • Tasks: Lead the charge in securing complex networks and optimising security tools.
  • Company: Dynamic tech company in Central Bristol with a focus on innovation.
  • Benefits: Competitive salary, bonus, 25 days holiday, and a solid pension plan.
  • Other info: Join a supportive team and enjoy excellent career growth opportunities.
  • Why this job: Make a real impact on security in a modern hybrid tech environment.
  • Qualifications: Hands-on experience with network security, cloud environments, and a proactive mindset.

The predicted salary is between 65000 - 75000 £ per year.

Central Bristol (various hybrid working arrangements available depending on location). £65,000 to £75,000 + bonus, 25 days holiday, good contributory pension.

Are you a Network Security Engineer ready to step into a role where your expertise shapes the security of a modern, hybrid tech environment? This is your chance to own security tooling, influence design decisions, and help strengthen a growing cyber function.

What You'll Be Doing

  • Securing complex enterprise networks across cloud and on-prem environments, including:
    • 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 preferred.
  • A proactive, accountable approach - you like owning outcomes.

Why This Role Stands Out

  • This isn't just another security engineering job. It's a chance to:
    • 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.

For more details, please reach out to Mary Pearson.

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. If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.

Senior Network Security Engineer in London employer: Sanderson Recruitment

Join a forward-thinking organisation that values diversity and inclusion, offering a dynamic work culture where your expertise in tax can truly shine. As the Head of Tax, you will not only lead a talented team but also play a pivotal role in shaping the tax strategy across North West Europe, with ample opportunities for professional growth and development. Enjoy a collaborative environment that prioritises employee well-being and fosters meaningful contributions to the business's long-term success.

Sanderson Recruitment

Contact Details:

Sanderson Recruitment Recruitment Team

We think you need these skills to ace Senior Network Security Engineer in London

Network Security
Security Tooling Configuration
Firewalls Management
VPNs Management
Cloud Security (Azure and/or AWS)
Endpoint Security
XDR Solutions