Pen Tester

Salary: £? - ? per year

Requirements:

• 5+ years of professional penetration testing experience, with the ability to work independently
• Advanced manual testing skills beyond the use of automated tools
• Strong knowledge of Windows, Unix, and network security
• Scripting or development experience, such as Python, C#, Java, or PHP
• Good knowledge of cloud environments
• Certifications such as OSCP, OSEP, CRTO, CREST, or equivalent
• Excellent communication skills and confidence working with clients

Responsibilities:

• Carry out advanced manual penetration tests across web, mobile, infrastructure, cloud, and Active Directory environments
• Conduct Red Team and assumed-breach engagements, independently or as part of a team
• Review architectures and source code for security weaknesses
• Write technical reports and executive summaries, and present findings to clients
• Mentor junior and mid-level testers
• Help build internal tools and methodologies
• Support pre-sales activities and occasionally work onsite with customers

Technologies:

• Active Directory
• C#
• Cloud
• Support
• Java
• Mobile
• Network
• PHP
• Python
• Security
• Unix
• Web
• Windows

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last updated 41 week of 2026