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Expleo is seeking a highly skilled Penetration Tester to join our team. As a Penetration Tester, you will play a critical role in identifying and exploiting security vulnerabilities in our clients' systems, networks, and applications.

• Conduct comprehensive penetration testing to identify security vulnerabilities and develop detailed testing plans and methodologies.
• Produce clear and concise reports that communicate vulnerabilities, their potential impacts, and recommended remediation strategies.
• Collaborate with client teams to explain findings, support remediation efforts, and provide post-testing debriefs.
• Stay up-to-date with emerging cybersecurity threats, vulnerabilities, and mitigation techniques.
• Assist in the development and refinement of security policies and procedures based on testing results.
• Provide training and guidance to clients on best practices for securing their environments.
• Contribute to the continuous improvement of Expleo's penetration testing methodologies and tools.
• Ensure that penetration testing activities comply with internal and client-specific quality assurance standards.
• Support the sales process by providing technical expertise and insights during client engagements.
• Manage the configuration and maintenance of penetration testing tools and environments.
• Track and report on project progress, ensuring timely delivery of testing activities and documentation.

• Relevant education or industry-recognised certifications in management-related subjects suited to this role (MSc, BSc, CREST, OFFSEC, GIAC, EC-Council, CompTIA)

• Deep understanding of network architecture and protocols.
• Deep understanding of operating systems.
• Good understanding of API vulnerabilities.
• Demonstrable knowledge in web application penetration testing, under OWASP or equivalent framework.
• Good knowledge of at least one scripting language, such as Python, Bash, and PowerShell.
• Proficient in penetration testing tools and techniques.
• Excellent analytical and problem-solving skills.
• Strong written and verbal communication skills, with the ability to explain complex technical issues to non-technical stakeholders.
• Ability to work independently and as part of a team in a fast-paced environment.
• Strong organisational and time management skills.

• Knowledge of OT and IoT security practices and standards.
• Experience in conducting red team exercises.

• Minimum of 5 years of experience in penetration testing or a related cybersecurity role.
• Proven experience working as a Pen Tester in an IT consultancy role or blue-chip environment.
• Hands-on experience with penetration testing and vulnerability detection tools, such as Burp Suite, Nmap, Wireshark, Metasploit, and Nessus.
• Proven track record of identifying and exploiting security vulnerabilities in diverse environments.
• Experience with Cloud security assessments (AWS, Azure, GCP).
• Familiarity with secure coding practices and application security testing.

• Have the right to work in the UK.
• Current or eligibility to achieve at a minimum SC clearance.

• Collaborative working environment – we stand shoulder to shoulder with our clients and our peers through good times and challenges.
• We empower all passionate technology loving professionals by allowing them to expand their skills and take part in inspiring projects.
• Expleo Academy - enables you to acquire and develop the right skills by delivering a suite of accredited training courses.
• Competitive company benefits.
• Always working as one team, our people are not afraid to think big and challenge the status quo.