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Base pay range
Direct message the job poster from Vallum Associates
Location: Heathrow, UK (4 days from office weekly)
Contract: 6+ Months
Pay: 400 GBP/day Inside IR35
Job Description
We are seeking a Network Security Engineer with expertise in identifying, prioritizing, and remediating network vulnerabilities, including zero-day threats.
* Require a strong security mindset and hands-on experience in securing hybrid infrastructure, including on-premises, cloud, and SD-WAN environments.
* Analyze vulnerability reports from tools such as Tenable, Qualys, AWS Inspector, and implement corrective actions.
* Remediate common network issues like IP spoofing, default credentials, open ports, unencrypted protocols, and missing firmware patches.
* Be familiar with insecure legacy protocols like Telnet and SNMPv1 and enforce secure alternatives such as SSH and SNMPv3.
* Apply hardening techniques using CIS Benchmarks, NIST standards, and industry best practices across firewalls, routers, and switches.
* Configure and maintain network security controls including ACLs, VLANs, DMZs, and micro-segmentation.
* Ensure management interfaces for network equipment follow least-privilege principles and are protected with strong encryption like TLS 1.2 or 1.3.
* Have a deep understanding of cloud networking components including AWS VPCs, Azure NSGs, and GCP firewall rules.
* Design and enforce segmentation and egress control in cloud and hybrid environments to reduce lateral movement risks.
* Support security incident response by investigating and remediating network-level threats and anomalies.
* Collaborate with penetration testers and vulnerability scanning teams to validate vulnerabilities and verify fixes.
* Work with GRC and compliance teams to align network configurations with frameworks like PCI-DSS, ISO 27001, etc.
Preferred Certifications: CCNP Security, CISSP, AWS Security Specialty, OSCP, or CEH. Scripting experience is a bonus.
Contact: Senior Delivery Consultant
Phone: 02033759240
Email: psharma@vallumassociates.com
Additional Details
* Seniority level: Mid-Senior level
* Employment type: Contract
* Industry: Airlines and Aviation
Referrals can increase your chances of interviewing at Vallum Associates by 2x.
Location: Greater London, England, United Kingdom
Posted: 4 months ago
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