Overview
I’m currently partnering with a leading international organisation headquartered in London that’s undergoing a major transformation of its security landscape. As part of this growth, they’re looking to appoint a Principal Information Security Engineer to strengthen their enterprise and cloud security posture.
The Role
This is a critical technical leadership position focused on implementing and optimising security controls across complex hybrid environments. You’ll be responsible for driving Zero Trust architecture, network segmentation, and championing secure-by-design practices in collaboration with engineering, cloud, and business teams.
Salary and Location
Salary: Up to £95,000 + bonus + package
Location: London (good work from home options available)
Responsibilities
* Lead end-to-end threat assessments and influence secure architecture across enterprise projects
* Deploy and optimise core security tools (EDR, PAM, AV, DNS, DLP, Cloudflare)
* Conduct threat modelling, risk assessments, and proactively hunt for threats
* Collaborate with IT teams to roll out segmentation and extend Zero Trust across environments
* Take ownership of attack surface reduction, including Red Teaming and vulnerability management
* Contribute to compliance efforts across GDPR, NIS, ISO 27001
Qualifications
* Strong hands-on experience across operating systems (Windows & Linux), cloud security (AWS, Azure), and enterprise security tooling
* Practical knowledge of MITRE ATT&CK, TTPs, and Red Team/Blue Team tactics
* Experience in scripting (PowerShell, Python, Bash) and tools like Metasploit, Burp Suite, Rapid7 InsightVM, and Nmap NSE
* Background in telco or highly regulated environments preferred (e.g., familiarity with UK Telecom Security Act)
* Relevant security certifications such as CISSP, CCSP, GCIH or similar are highly desirable
Job Details
* Seniority level: Mid-Senior level
* Employment type: Full-time
* Job function: Information Technology, Project Management, and Engineering
* Industries: Telecommunications, Technology, Information and Media, and Insurance
Application
If you are interested in this Principal Information Security Engineer position and meet the above requirements please apply immediately.
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