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Computer Network Defence Ltd (CND)
Penetration Tester (CHECK)

Penetration Tester (CHECK)

Hybrid

Cheltenham, United kingdom

Full Time

03-12-2025

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Skills

Python Bash Penetration Testing Test Sales Linux Windows Azure AWS Marketing

Job Specifications

Location: Cheltenham/Remote

Job Type: Permanent

Clearance: SC/DV

Are you an offensive security specialist who is excited about delivering the best service possible? Keen to work in a business where you stand to work alongside some very talented testers?

CND are working with a boutique Cyber Security consultancy who are focused on the Penetration Testing market. What makes them stand out? They are not interested in flashy marketing and would never be caught trying to pass off a Nessus scan as a Penetration Test. The business has been built on delivering excellent testing and reports as well as ensuring that clients see the real benefits of their testing outputs. The company have an office in Cheltenham however you are welcome to work where is best for you.

Job Details

Key Responsibilities

Work to deliver CHECK penetration testing services.
Lean into non-CHECK work where necessary.
Work with the sales team to flesh out technical input as needed.
Deliver quality reports to customers.
Stay up to date with industry trends and new attack methods.
Take a broad approach to testing, working on INF, APP, Mobile, AD, or Cloud tests.

Essential Skills

Currently holds a CHECK equivalency certification.
Eligibility to hold or currently hold clearance.
Experience working with Linux and Windows OS.
Strong understanding of working with common tooling for penetration testing.
Ideally, a knowledge of Cloud services such as Azure or AWS.
Capability to script or code in Bash, Python etc.
Appreciation for Cyber Security standards such as ISO27001, PCI-DSS or CIS.

This is a role with a growing, exciting organisation who can offer you a strong degree of progression and the ability to undertake testing work with incredibly interesting clients.

About the Company

Computer Network Defence Ltd are a UK based cyber security consultancy with an extremely broad spectrum of capability. Our highly experienced cyber security staff are supported by our in-house cyber security recruitment division, ensuring availability and specialist skills through an extensive associate pool. We pride ourselves on being deeply technical and providing innovative solutions to our clients with great agility. Consultancy We specialise in delivering cyber security solutions into secure environments in both the Pu... Know more