Penetration Tester

Posted Wednesday 12 August 2026 at 01:00

Head of Assurance Testing

Assurance Testing

Cyber Consulting

(OVERALL DESCRIPTION OF THE POST WITHIN THE TEAM AND ORGANISATION)

Bytes is a CREST-certified penetration testing organisation with ambitious growth and expansion plans. We are looking for motivated individuals to join our testing team and work with a wide range of customers across all aspects of penetration testing. This role offers the opportunity to be part of a highly skilled and collaborative team, delivering high-quality testing and security consulting services in real-world environments.

We welcome candidates with either a broad set of skills or a focus on specific areas within penetration testing. Whether you're experienced or looking to grow, this role is ideal for anyone who has been providing penetration testing or security consulting services and wants to gain further experience, achieve new certifications, or simply work with a great team.

You will be working under the guidance of a team leader or Head of Assurance testing and will be actively involved in client engagements, while also having dedicated time to develop your skills and work towards industry-recognised certifications. A willingness to learn, adapt, and continuously improve is essential. Just as important is a mindset focused on collaboration, sharing knowledge, supporting peers, and contributing to a culture of growth.

In addition to hands-on testing work, you will also collaborate with the sales team to ensure appropriate scoping of new business opportunities. This includes providing technical input and helping to create accurate, well-defined proposals that set the foundation for successful project delivery.

This is an excellent opportunity for someone who is passionate about cybersecurity and is looking to progress their career as a penetration tester within a forward-thinking and supportive environment.

• Perform penetration testing assignments aligned with expertise, covering infrastructure, web applications, APIs, mobile applications, red team, and cloud configuration reviews. Delivering high-quality penetration testing services that provide real value to customers.
• To work under the direction of your team leader or head of Assurance testing on internal projects, research, development, as well as increasing the effectiveness of our services by bringing new ideas and ways of working
• Collaborate with the sales team to ensure appropriate scoping of new business opportunities and creation of proposals for successful engagement delivery.
• Manage customer engagements to ensure high-quality and timely deliverables.

INDIVIDUAL RESPONSIBILITIES:

• Delivering penetration testing services to customers as part of a team
• Provide technical assistance and support to colleagues, leveraging your expertise to foster knowledge sharing, collaborative problem‑solving, and a productive team environment.
• Conduct quality assurance reviews of reports and proposals to ensure accuracy and adherence to industry standards.
• Collaborate with the team to maintain and update the vulnerability database, ensuring it stays accurate and comprehensive
• Support scoping calls and collaborate with account managers to define penetration testing requirements, provide technical input, and ensure seamless client interactions and service delivery.
• Improving knowledge and capability through both on the job learning and self-study, preparation for exams and bringing an enthusiastic can‑do attitude
• Delivering high quality engagements to customers and delivering real value to them

WIDER TEAM NETWORK

(WHICH TEAMS WILL THE POSITION WORK WITH DIRECTLY AND WHO WILL THEY RELATE TO EXTERNALLY)

Internal

• Other Cyber Consulting teams
• Sales teams
• Pre‑Sales teams
• Security team
• IT

External

• Customers

QUALIFICATIONS, EXPERIENCE, &

SKILLS:

( DELETE AS REQUIRED IF ESSENTIAL OR DESIRABLE, REMOVE UNNECESSARY REQUIRENENTs)

Educational

Qualifications:

• BSc degree or 3 years relevant experience

ESSENTIAL

Professional Qualifications

ESSENTIAL

Years of Experience

• 1 to 3 years penetration testing…