Security Pen Tester / Senior Security Pen Tester

The role

Our Information Security team is at the heart of protecting a global retail and eCommerce business. With over 15,000 IT users and a digital reach spanning 60 countries, we work to keep our systems, colleagues, and customers safe every day.

We are looking for a Security Pen Tester to join our proactive line of defence. In this role, you will think like an attacker to find vulnerabilities before they can be exploited, providing the clear guidance our Technology teams need to stay secure.

Whether you are exploring security within our offices or our rapidly expanding warehouse environments, you will be part of a collaborative team that values growth. 

What you’ll take on

At NEXT, we don't stand still. Enacting our ‘Let's Take It On’ spirit means pushing boundaries and learning to evolve. As part of the team, you will:

• Plan and execute authorised pen tests across our networks, applications, and infrastructure to simulate security breaches and assess risk.


• Identify security gaps caused by technical flaws or human error and advise on best-practice remediations.


• Innovate with fresh testing methods, scripts, and automated tools to enhance our security posture.


• Communicate technical risks through high-quality reports, explaining the potential business impact to stakeholders with clarity.


• Collaborate with Detection Engineers and SOC teams to turn findings into long-term security playbooks.


• Monitor the evolving threat landscape through continuous learning and collaboration with national cybersecurity bodies.

What you’ll bring

To succeed in this role, you will need:

• Technical Expertise: Experience of professional pen testing experience supported by an OSCP, CREST CRT, or equivalent certification.


• Analytical Thinking: A solution-oriented mindset with a deep understanding of operating systems, networking, and cloud environments like AWS, Azure, or GCP.


• Communication Skills: The ability to translate complex technical risks into simple, actionable insights for everyone.


• Adaptability: Comfort working independently or collaborating within a diverse team to solve complex problems.


• Organisation: Excellent time management skills and the ability to scope tests effectively to meet business needs.


• Professional Growth: A proactive approach to development and a willingness to share knowledge to help the wider team succeed.

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