Penetration Tester

UBDS Group; Remote; GBP 80,000 - 100,000; Full time

Job summary

A leading cyber security firm is seeking a skilled Senior Penetration Tester to enhance service delivery. The successful candidate will lead penetration testing engagements, mentor team members, and provide technical presales support. Candidates must possess a CTL qualification in Infrastructure, excellent communication skills, and a solid background in penetration testing. The role is primarily remote but requires travel to client sites across the UK and occasional office attendance, offering flexible working and a commitment to staff development.

Benefits

Competitive salary

25 days holiday plus 8 bank holidays

Health plan

Company pension scheme

Cycle to work scheme

Flexible working opportunities

Qualifications

• Solid background in penetration testing with senior-level experience.
• Ability to achieve and hold UK security clearance.
• Self-motivated and able to work autonomously.

Responsibilities

• Lead on a range of penetration testing engagements.
• Create high-quality reports for customers.
• Mentor and coach junior team members.
• Support customers with technical presales.
• Identify and assist in business development opportunities.

Skills

Penetration testing

Team leadership

Excellent communication

Customer focus

Proactive learning

Education

CTL qualification in Infrastructure

CTL qualification in applications

Chartered or Principal CSP

Job description

3B Data Security (part of UBDS Group) is looking for a skilled and experienced Senior Penetration Tester who can provide exceptional service delivery and contribute to the continued expansion of the organisation.

We are a leading cyber security specialist, passionate about assisting our clients to strengthen their systems against ongoing threats in an ever-changing, fast-paced world. We have assembled a team of professionals with significant technical expertise, delivering services based on a wide range of cyber security disciplines.

Responsibilities

• Being the Lead Penetration Tester on a wide portfolio of penetration testing engagements including complex CHECK engagements and ITHCs as well as large projects for our key clients.
• Working with senior management to maintain CHECK Green Status.
• Creating high quality reports, ensuring complex technical data is conveyed in a way that is meaningful for customers.
• Mentor and coach more junior members of the team to help them to grow and develop their career.
• Build meaningful relationships with customers, ensuring they are kept up to date on the progress of the engagement and any pertinent findings in a timely manner.
• Acting as a subject matter expert, supporting customers to better understand their situation and the value that 3B Data Security can bring to their organisation.
• Provide technical presales support where necessary, to assist in the scoping of new engagements.
• Identify business development opportunities, assisting in the development and implementation of such opportunities.

Qualifications

• A CTL qualification in Infrastructure is essential and a required prerequisite.
• A second CTL qualification in applications would be a bonus.
• Chartered or Principal CSP.
• A solid background in penetration testing with demonstrable experience of working at a senior level.
• An ability to achieve and hold UK security clearance is essential.
• Demonstrable experience of leading a team to achieve high‑quality outcomes.
• You must be passionate and enthusiastic for penetration testing and be proactive to increase your knowledge and skills in this area.
• You must have excellent communication skills and be customer focused.
• You will be self‑motivated and be able to work autonomously.
• Due to the nature of the role, ideally you would have your own transport and be able to react at short notice when needed.

Benefits

• A competitive salary.
• 25 days holiday plus 8 bank holidays a year.
• Medicash Health Plan.
• A company pension scheme.
• Cycle to work and Tech Scheme.
• A commitment to the continued development of all staff and training where you can work towards industry‑recognised certifications or appropriate goals.
• Flexible working opportunities.
• 3B Data Security has a technical leadership team dedicated to supporting and developing our staff and business.

This role is remote, however you will be expected to travel to client sites across the UK and internationally where required. You will also be required to attend the company's offices on occasion.

If you are a professional, enthusiastic, self‑starter who will rise to the challenge, please send your CV and a covering letter.