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Network Security Engineer

Security Team
London / Hybrid Full-time £65,000 – £90,000 Hybrid – 3 days in office, 2 remote
Closes: 12 April 2026 (44 days remaining)
DSIDE-NSE-2026
The Role

Protect our platform and user data by designing and implementing robust security infrastructure. You'll lead vulnerability assessments, incident response, and ensure compliance with UK data protection regulations across our high-traffic comparison platform.

Responsibilities
  • Design and implement network security architecture for cloud and on-premise infrastructure
  • Conduct regular vulnerability assessments and penetration testing
  • Lead incident response procedures and post-mortem analysis
  • Manage firewalls, IDS/IPS, WAFs, and VPN configurations
  • Ensure GDPR compliance and maintain security documentation
  • Monitor and analyse security logs and threat intelligence feeds
  • Mentor junior team members on security best practices
  • Collaborate with engineering teams on secure development lifecycle
Essential Requirements
  • 5+ years in network security, penetration testing, or SOC operations
  • Strong knowledge of firewalls, IDS/IPS, VPNs, and WAFs
  • Experience with GDPR compliance and security auditing
  • Familiarity with cloud security (AWS/Azure) and container security
  • Excellent analytical and communication skills
Nice to Have
  • CISSP, CEH, or CompTIA Security+ certification
  • Experience with SIEM tools (Splunk, ELK Stack)
  • Knowledge of web application security (OWASP Top 10)
  • Background in e-commerce or high-traffic platform security
What We Offer
  • Remote flexibility – work from anywhere 2 days a week
  • 5% employer pension contribution
  • £2,000 annual certification & training budget
  • Private health insurance (after probation)
  • 25 days annual leave + bank holidays
  • Latest MacBook Pro or equivalent setup
  • Monthly team socials and quarterly offsites
  • Cycle-to-work scheme
Hiring Process
Step 1: Application Review

We review your CV and cover letter within 5 working days.

Step 2: Phone Screen

30-minute call with our hiring manager to discuss your experience.

Step 3: Technical Task

A security assessment scenario and architecture review.

Step 4: Final Interview & Offer

Meet the team, discuss the role, and receive your offer.

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