Senior Penetration Tester - Senior Security Consultant

Cybercx Uk; United Kingdom; Remote; GBP 50,000 - 70,000; Full time

Job summary

A leading cybersecurity firm is seeking a Penetration Tester to work remotely within the UK. In this role, you will conduct advanced security reviews, identify vulnerabilities, and develop comprehensive reports. The ideal candidate has strong knowledge of penetration testing tools and methodologies, along with excellent communication skills. The position offers a competitive salary and unique growth opportunities while contributing to impactful cybersecurity work.

Benefits

Attractive salary and employee benefits package

Once-in-a-career growth opportunities

Work with cybersecurity thought leaders

Dynamic independent work environment

Ongoing personal development

Qualifications

• Deep knowledge of penetration testing methodologies and tools.
• Proficiency in scripting languages like Python for automation.
• Strong analysis skills to identify vulnerabilities.

Responsibilities

• Plan and execute advanced security reviews on various systems.
• Discover security weaknesses and analyze impact.
• Develop comprehensive reports detailing vulnerabilities.

Skills

Penetration testing methodologies

Burp Suite

Nmap

Nessus

Kali Linux

Scripting languages (Python)

Network protocols (TCP/IP, OSI)

Operating systems knowledge

Excellent communication skills

Education

Degree in computer science or information technology

Job description

Overview

29th September, 2025. This is a UK based position. The office is in London but you can be fully remote from anywhere in the UK provided you meet Security Clearance requirements.

In this role, you will

• Plan and execute advanced security reviews on various systems (e.g., applications, infrastructure, cloud, networks).
• Discover security weaknesses and perform technical analysis to understand the impact of exploits.
• Develop comprehensive reports detailing identified vulnerabilities, exploitation procedures, associated risks, and clear, actionable remediation recommendations.
• Provide technical guidance and mentorship to other testers, contributing to their growth and expertise.
• Work with clients, development teams, and infrastructure teams to understand business context and integrate security into projects.
• Research emerging cyber threats, tools, and techniques to ensure testing remains representative of the current threat landscape.
• Contribute to refining internal testing methodologies and developing or leveraging tools for automated tasks.
• Present technical findings and risks to both technical and non-technical audiences, including senior management.

About you

• Deep knowledge of penetration testing methodologies, tools (e.g., Burp Suite, Nmap, Nessus, Kali Linux), network protocols (TCP/IP, OSI), and operating systems.
• Proficiency in scripting languages like Python for developing automated solutions.
• Strong ability to analyze complex systems, identify vulnerabilities, and develop effective solutions.
• Excellent written and verbal communication skills for creating clear reports and conveying complex information to various audiences.
• Proven experience leading penetration tests and managing engagements.
• Familiarity with standards like OWASP Top 10 and SANS Top 25.
• A degree in a relevant field like computer science or information technology is often preferred, with certifications like OSCP being highly valued

What2s in it for you?

• Attractive salary and employee benefits package
• Once-in-a-career growth opportunities - unique chance to be part of a high-growth business
• Work with cyber security thought leaders to deliver world-class services
• A dynamic, independent environment where youre given flexibility to do your best work
• Ongoing personal development and ongoing career training

Be yourself. We embrace diverse perspectives, experiences, and backgrounds. Please let us know if you require support or adjustments to assist with your recruitment experience.

At CyberCX, everyone works together to create cyber security for the world around us. The work we do has a real impact, and you could be part of the team trusted to educate, protect, and defend organisations around the world.

The work we do matters
We protect and defend our customers and communities by providing the most comprehensive range of cyber security professional services in the region. With more than 1,400 team members across Australia, New Zealand, the UK and US, we are a leading force in cyber security, offering services from strategy, GRC, managed security services, cloud security, digital forensics and cyber education.

If youre ready to work with teammates that get you, a leader that supports you and customers that need you, then youre ready for CyberCX.