Offensive Security Specialist

JR United Kingdom; Oxford; On-site; GBP 40,000 - 70,000; Full time

Job summary

A leading security services provider is seeking an Offensive Security Specialist in Oxford. This permanent role focuses on building offensive security capabilities and engaging with clients through penetration testing, vulnerability assessments and training services. Candidates must possess excellent communication skills and relevant industry certifications to thrive in this dynamic, market-leading position.

Qualifications

• Experience in delivering Application or Infrastructure penetration tests.
• High standard of customer engagement and technical communication.
• Experience mentoring or delivering training is beneficial.

Responsibilities

• Develop the Offensive Security capability into a market-leading function.
• Engage with customers to scope and deliver security services.
• Run and oversee services like Vulnerability Assessments and Code Reviews.

Skills

Communication skills

Stakeholder engagement

Vulnerability assessment

Penetration testing

Code review

Education

Industry certifications (CRT, CSTM, CCT App)

Job description

Offensive Security Specialist, oxford district

Client:

Computer Network Defence Ltd (CND)

Location:

oxford district, United Kingdom

Job Category:

Other

-

EU work permit required:

Yes

Job Views:

9

Posted:

29.06.2025

Job Description:

Role: Offensive Security Specialist

Type: Permanent

Clearance: Eligible for SC

Interested in getting away from the grind of endless similar penetration tests? Keen to stretch yourself into a more managerial role over time, building up a capability around you?

We are working with a leading security services provider who are in the process of standing up their Offensive Security capability. The work will be focused on providing services such as Web App testing, Infrastructure testing and Code Review services to clients whilst also looking at how to develop that side of the company further. This role has a unique blend of hands on, technical work that would suit someone looking for something a bit different from either just doing technical tests forever or moving away from the keyboard fully.

Key Responsibilities:

•Work to develop the Offensive Security capability for the organisation into a market leading function

•Customer engagement, through the scoping process, tool selection and overall delivery

•Run and take ownership of services such as Vulnerability Assessments, Code Review and Penetration Testing

•Potential to work overseas to provide training services or working with clients to develop their own security posture

•Engage in a cross departmental way in order to spot and develop opportunities for unique services and products.

•Experience delivering either Application or Infrastructure penetration tests to a high standard

•Working with customers in order to scope numerous services, from penetration testing to phishing

•Ideally you will have experience working on Code Reviews, in order to highlight vulnerabilities

•High level stakeholder communication skills, from technical individuals through to non-technical stakeholders

•Some experience delivering training or mentoring would be advantageous

•Industry certifications would be a plus, such as CRT, CSTM, CCT App or Inf or Offensive Security certifications

This role gives someone tired of the same old testing jobs the chance to build a function around them over time, which could be career defining.

In line with Asylum & Immigration Legislation, all applicants must be eligible to live and work in the EU. Documented evidence of eligibility will be required from candidates as part of the recruitment process. Furthermore, in view of the nature of the work, all potential employees will undergo stringent reference and identity checks.

If you have not heard from a member of the CND team within 14 days, please assume your application has been unsuccessful.

CND Limited is acting as an Employment Agency in relation to this vacancy.

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Created on 29/06/2025 by JR United Kingdom