💼 Full-Time Position

Senior Penetration Tester - CTL

🏢
UBDS Group
📍 London, England, United Kingdom
📍
Location
London, United Kingdom
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Posted
June 11, 2026
Type
Full-Time
🎯

Full-Time Opportunity: This is a permanent, full-time position with a competitive package and real career growth potential.

Job Description

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

You will have a CHECK Team Leader (CTL) qualification in infrastructure and must also hold a Chartered or Principal Cyber Security Professional title in Security Testing. 

You will be an integral member of the team, working with senior management to achieve and maintain CHECK Green status. You will take the lead on CHECK engagements, directing the team as necessary to provide a high-quality service to our clients.

In addition to CHECK work, you will also work on our commercial engagements which range from infrastructure and application testing (web and mobile) to social engineering and Red Team engagements. There are opportunities to develop future complementary testing services around different industries and technology areas, and help to grow the ...