DV Cleared Penetration Tester

Oscar; United States; Remote; GBP 60,000 - 90,000; Full time

Job summary

Oscar is seeking an experienced DV Cleared Penetration Tester to join a UK cyber security consultancy. The role is remote with on-site testing when engaging clients, delivering CHECK-compliant assessments across networks, infrastructure and applications.

You will exploit and demonstrate vulnerabilities, support red team activities, and produce technically detailed reports with practical remediation guidance for clients. Strong DV clearance and client-facing communication are essential.

Qualifications

• 2+ years' commercial penetration testing experience.
• Strong understanding of networks, operating systems and security technologies.
• Hands-on experience with Burp Suite, Nmap and Metasploit.
• Excellent technical reporting and client communication skills.
• A genuine interest in offensive security and vulnerability research.
• Active DV Clearance and CHECK Team Member status.

Responsibilities

• Delivering CHECK-compliant penetration tests across networks, infrastructure and applications
• Identifying, exploiting and demonstrating vulnerabilities through manual and automated testing
• Supporting red team and adversary simulation engagements
• Producing clear, technically detailed reports with practical remediation advice
• Working directly with clients to scope engagements, present findings and provide technical guidance
• Developing testing methodologies, tooling and technical capabilities
• Keeping up to date with emerging vulnerabilities and offensive security techniques

Skills

Penetration testing

DV clearance

Client communication

Network & OS security

Tools

Burp Suite

Nmap

Metasploit

Job description

DV Cleared CHECK Penetration Tester - Remote w/ Client visits

We're working with a specialist UK cyber security consultancy delivering high-end penetration testing, technical assurance and threat simulation services across government, defence and other security-critical environments.

The business has built a strong reputation for technically focused, bespoke security consultancy, with work spanning penetration testing, red teaming, vulnerability research, secure architecture and continuous technical assurance. Their consultants work on complex engagements where the quality of the technical assessment genuinely matters.

They're now looking to bring an experienced DV Cleared Penetration Tester into their growing technical team. This is an opportunity to work on challenging engagements within highly secure environments, alongside experienced consultants and security professionals.

Location: Remote with onsite testing with clients

Clearance: DV or SC with DV eligibility

What you'll be doing:

• Delivering CHECK-compliant penetration tests across networks, infrastructure and applications


• Identifying, exploiting and demonstrating vulnerabilities through manual and automated testing


• Supporting red team and adversary simulation engagements


• Producing clear, technically detailed reports with practical remediation advice


• Working directly with clients to scope engagements, present findings and provide technical guidance


• Developing testing methodologies, tooling and technical capabilities


• Keeping up to date with emerging vulnerabilities and offensive security techniques

What we're looking for:

• Active DV Clearance


• CHECK Team Member status


• 2+ years' commercial penetration testing experience


• Strong understanding of networks, operating systems and security technologies


• Hands-on experience with tools such as Burp Suite, Nmap and Metasploit


• Strong vulnerability identification and exploitation skills


• Excellent technical reporting and client communication skills


• A genuine interest in offensive security and vulnerability research

Why this role?

A great opportunity to work on highly technical, security-critical engagements across government and defence, alongside an experienced offensive security team.

You'll have exposure to varied penetration testing and assurance projects, with opportunities for further technical development, certifications and progression within a specialist consultancy.