Network Security Engineer- Heathrow
Windsor, England, United Kingdom
Vallum Associates
Position - Network Security Engineer Location - Heathrow, UK (4 days from office weekly) Contract - 6+ Months 400GBP/day Inside IR35 Job description "Seeking a Network Security Engineer with expertise in identifying, prioritizing, and remediating network vulnerabilities, including zero-day threats. Role requires a strong security mindset and hands-on experience in securing hybrid infrastructure, including … alternatives like SSH and SNMPv3. Will apply hardening techniques using CIS Benchmarks, NIST standards, and industry best practices across firewalls, routers, and switches. Responsible for configuring and maintaining network security controls including ACLs, VLANs, DMZs, and micro-segmentation. Ensures management interfaces for network equipment follow least-privilege principles and are protected using strong encryption like TLS 1.2 or 1.3. … components including AWS VPCs, Azure NSGs, and GCP firewall rules. Must design and enforce segmentation and egress control in cloud and hybrid environments to reduce lateral movement risks. Supports security incident response by investigating and remediating network-level threats and anomalies. Collaborates with penetration testers and vulnerability scanning team to validate vulnerabilities and ensures fixes are properly implemented and More ❯
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