CREST Penetration Tester (SC Clearance)

Overview

Join a global technology and consulting leader delivering secure, innovative solutions across industries. We foster collaboration, inclusion, and continuous growth, with networks supporting diversity, equity, and belonging.

What You'll do

• Lead and manage threat intelligence-led penetration tests across applications, infrastructure, cloud (AWS/Azure/O365), APIs, and OT
• Develop advanced test plans, identify critical assets, and deliver detailed, actionable reports for technical and business audiences
• Collaborate with client teams to enhance remediation, security monitoring, and blue team capabilities
• Contribute to research on emerging threats and attack techniques to strengthen proactive security

What You'll Bring

• CREST CRT (or higher) certification - essential
• 5+ years' experience in penetration testing with strong understanding of adversarial tactics and threat intelligence
• Expertise across network, cryptography, vulnerabilities, and attack vectors
• Strong communication and reporting skills
• Experience with Breach Attack Simulation, vulnerability management, cloud security reviews (AWS/Azure/GCP), or frameworks like ISO 27001
• Certifications such as CISM, CISSP, ECSA, CREST CCT
• Eligible for UK SC Clearance is mandatory

Robert Walters Operations Limited is an employment business and employment agency and welcomes applications from all candidates

About the job

• Contract Type: Permanent
• Focus: Information Security
• Workplace Type: Hybrid
• Experience Level: Associate
• Location: London
• Industry: IT
• Salary: £50,000 - £55,000 per annum + bonus, pension, benefits

Date posted: 22 October 2025

Consultant: Fiona Fung