Consultant Penetration Tester - CRT

CompanyNTT DATA, Inc.

LocationLondon Area, United Kingdom

Posted At1/14/2026

UK Visa Sponsorship Analytics

Analytics are greyed out due to low classification confidence (51.0%).

Occupation Type

Cyber security professionals

Occupation Code Skill LevelHigher Skilled

Sponsorship Salary Threshold

£48,500 (£24.87 per hour)

Occupation rate applies

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Description

You can be based ANYWHERE IN THE UK

Role Overview:

We are seeking a highly skilled and experienced Penetration Tester Consultant - CREST registered with a strong focus understanding on threat intelligence and attack methods. The ideal candidate will be responsible for managing and conducting advanced penetration testing engagements, leveraging threat intelligence to simulate real-world attacks across a variety of environments, including OT, IT, web applications, cloud infrastructure, and APIs. This role requires a deep understanding of adversarial approaches, excellent communication skills, and the ability to provide strategic and actionable recommendations to significantly enhance our clients' security posture.

What you'll be doing:

Lead and manage the full lifecycle of complex penetration testing engagements, applying a strong threat intelligence-led approach.
Execute advanced penetration tests across a broad range of environments (applications, infrastructure, web, APIs, O365, Azure, AWS, OT), directly applying your knowledge of current threat landscapes and attacker TTPs.

Develop and maintain sophisticated test plans, execution plans, and targeted use cases directly informed by in-depth threat intelligence analysis.

Identify and prioritize OT and IT assets, services, and systems based on their criticality and potential exposure to identified threats.

Strategically prioritize, plan, and schedule penetration testing engagements based on comprehensive threat assessments and client-specific requirements.

Produce high-quality, detailed reports that clearly articulate technical findings, potential business impact, and strategic, actionable remediation recommendations for both technical and non-technical stakeholders.

Clearly and effectively communicate complex security concepts, adversarial tactics, and critical threat intelligence insights to diverse audiences.

Collaborate closely with client IT and cybersecurity teams to drive the enhancement of security protocols and ensure effective, threat-informed remediation of identified vulnerabilities.

Track the progress of remediation efforts and provide regular, concise updates to stakeholders, highlighting the reduction of identified threats.

Conduct proactive security research and contribute to the creation of technical content on emerging threats, advanced attack techniques, and threat intelligence-led testing methodologies.

Contribute to strengthening security monitoring (blue team) capabilities by providing valuable insights into offensive techniques and adversarial behaviors to enhance detection and response effectiveness.

Drive the patching regime for identified vulnerabilities, prioritizing remediation efforts based on threat intelligence and the potential for exploitation by advanced threat actors.

What experience you'll bring:

You will need to be CREST Certified.
Minimum of 5 years of demonstrable professional experience in penetration testing, with a strong emphasis on understanding, emulating, and leveraging adversarial tactics and threat intelligence.
Comprehensive understanding of OT and IT asset profiles, technologies, and security best practice principles, with a proven ability to contextualize them within the current threat landscape.
In-depth knowledge of network protocols, cryptography, security vulnerabilities, and common attack vectors employed by sophisticated threat actors.
Demonstrated proficiency in utilizing a wide range of penetration testing tools and methodologies, including those specifically used for threat intelligence analysis and application.

Proven experience in scoping and executing complex penetration tests, particularly those directly informed and driven by threat intelligence.

Exceptional written and verbal communication skills, with the ability to articulate complex technical findings and nuanced threat intelligence insights clearly and concisely to diverse audiences.

Strong organizational and time management skills, with a proven ability to effectively manage and prioritize multiple concurrent engagements.

Current CREST CRT certification or higher is essential.

Must hold or be eligible for SC Clearance.

Desirable Skills:

Experience with Breach Attack Simulation tools and methodologies.
Experience in Vulnerability Management processes and integrating threat intelligence.
Understanding of Risk Management frameworks and how threat intelligence informs risk assessments.
Hands-on experience with security reviews of AWS, Azure, and GCP environments, incorporating cloud-specific threats.
Experience with ISO 27001 auditing/implementation, understanding the role of threat intelligence in compliance.

Other advanced cybersecurity certifications such as CISM, CISSP, ECSA, CREST CCT.

Who we are:

We’re a business with a global reach that empowers local teams, and we undertake hugely exciting work that is genuinely changing the world. Our advanced portfolio of consulting, applications, business process, cloud, and infrastructure services will allow you to achieve great things by working with brilliant colleagues, and clients, on exciting projects.

Our inclusive work environment prioritises mutual respect, accountability, and continuous learning for all our people. This approach fosters collaboration, well-being, growth, and agility, leading to a more diverse, innovative, and competitive organisation. We are also proud to share that we have a range of Inclusion Networks such as: the Women’s Business Network, Cultural and Ethnicity Network, LGBTQ+ & Allies Network, Neurodiversity Network and the Parent Network.

For more information on Diversity, Equity and Inclusion please click here: Creating Inclusion Together at NTT DATA UK | NTT DATA

what we'll offer you:

We offer a range of tailored benefits that support your physical, emotional, and financial wellbeing. Our Learning and Development team ensure that there are continuous growth and development opportunities for our people. We also offer the opportunity to have flexible work options.

You can find more information about NTT DATA UK & Ireland here: https://uk.nttdata.com/

We are an equal opportunities employer. We believe in the fair treatment of all our employees and commit to promoting equity and diversity in our employment practices. We are also a proud Disability Confident Committed Employer - we are committed to creating a diverse and inclusive workforce. We actively collaborate with individuals who have disabilities and long-term health conditions which have an effect on their ability to do normal daily activities, ensuring that barriers are eliminated when it comes to employment opportunities. In line with our commitment, we guarantee an interview to applicants who declare to us, during the application process, that they have a disability and meet the minimum requirements for the role. If you require any reasonable adjustments during the recruitment process, please let us know. Join us in building a truly diverse and empowered team.