Principal Information Security Engineer

OverviewI’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 and Linux), cloud security (AWS, Azure), and enterprise security tooling

Practical knowledge of MITRE ATTandCK, 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

ApplicationIf you are interested in this Principal Information Security Engineer position and meet the above requirements please apply ..... full job details .....