Beyond Technical Skills: What Makes a Great Penetration Tester?

Technical capability is important, but after speaking with experienced penetration testers and seeing what separates good testers from great ones, I think there is a lot more to it than technical knowledge alone. At Red Cursor, we have noticed a few consistent qualities that stand out when interviewing for senior penetration testing roles.

Curiosity over confidence.

You can have years of experience and still encounter something you have never seen before. The strongest testers are not necessarily the ones who know every answer, but the ones who are willing to acknowledge what they do not know, ask questions and continue learning. Cybersecurity is constantly evolving. New technologies, vulnerabilities and attack techniques mean that even experienced professionals need to continually develop their knowledge. A good penetration tester understands how a vulnerability works. A great penetration tester wants to understand why it exists, how it could be exploited and what else it might lead to.

Practical experience matters.

Understanding vulnerabilities such as SSRF, CSRF or Kerberoasting is one thing. Being able to explain how you have identified, investigated and approached them in a real-world environment is another. There is a noticeable difference between someone who has studied a vulnerability and someone who genuinely enjoys the process of discovering one.

Industry resources such as the OWASP Web Security Testing Guide provide valuable methodologies for identifying and assessing security weaknesses. However, applying that knowledge in a complex environment requires practical experience, adaptability and sound judgement.

It is also important to understand how individual vulnerabilities might be combined to create a more significant security risk. An isolated finding might appear relatively minor, but when combined with other weaknesses, the potential impact on an organisation can change considerably. The ability to think beyond an individual vulnerability and understand the broader attack path is what makes practical experience so valuable.

Communication is just as important as technical ability.

Penetration testing is not simply about identifying vulnerabilities. It is about communicating findings clearly, understanding business context and helping clients make informed decisions about their security. Some of the most technically capable people are not necessarily the strongest communicators, but in a client-facing environment, both skills matter. A great penetration tester should be able to explain not only what was discovered, but why it matters, how it could affect the organisation and what steps should be taken to address it. After all, identifying a vulnerability is only part of the process. Helping an organisation understand and reduce its exposure is where the real value lies.

Thinking like an attacker.

One quality that deserves more attention is the ability to approach an environment from an attacker’s perspective. Effective penetration testing requires more than following a checklist or running automated tools. It involves understanding how systems interact, identifying potential weaknesses and considering how those weaknesses could be exploited in a realistic scenario.

And perhaps most importantly, authenticity.

With AI tools making technical information more accessible than ever, it is becoming increasingly important to understand what someone genuinely knows versus what they can quickly look up. There is absolutely a place for AI in cybersecurity, but curiosity, critical thinking and the ability to work through a problem independently remain incredibly valuable. Being able to explain your reasoning, acknowledge uncertainty and demonstrate how you approach an unfamiliar problem can reveal far more about your capabilities than simply providing the correct answer.

What does this mean for organisations?

When engaging a penetration testing provider, technical qualifications and experience are important considerations, but they should not be the only ones. The quality of an assessment also depends on the people conducting it, their ability to understand your environment and how effectively they communicate their findings. Ultimately, a great penetration tester does more than identify security weaknesses. They help organisations understand their risks, prioritise remediation and make more informed security decisions.

Technical skills might get you into the interview, but your attitude, communication and willingness to keep learning can be what sets you apart.