Explore how much penetration testers earn in the UK, with salary ranges based on experience, industry, and location. Learn what qualifications, certifications, and specialisations can help boost your earnings in this high-demand cyber security role.
A role as a penetration tester – or pen tester – offers an exciting and varied cyber security career. These professionals are in high demand, so applicants with the right skills and experience have opportunities for high earnings in addition to an interesting day-to-day role.
The main job of a penetration tester is to identify any vulnerabilities within computer systems. They do this by adopting the same techniques as real hackers and attempting to access their targets with the permission of the owners. Afterwards, they will draft a report explaining where any flaws lie and offering recommendations to address them.
These jobs are in high demand because the threat posed by cyber criminals is growing all the time. Indeed, in 2024, half of all UK businesses experienced a cyber attack – rising to 74 per cent of large firms. As such, all companies will be in need of cyber security professionals who are able to think and act like hackers in order to boost their defences.
So if this sounds like the right job for you, what do you need to know about the salary you can expect to earn, and what can you do to stand the best chance of boosting your paycheque?
According to the latest figures from Glassdoor, which takes an average of the salaries reported to it for the job title, expected base salaries for penetration testers in the UK as of April 2025 range from £38,000 to £65,000, with an average of £49,000 per year.
Once additional compensation such as bonuses and profit-sharing schemes are included, this takes the total average pay to £52,488 per year.
One factor that may affect your pay is the sector the company operates in. For example, employers in areas such as financial services, technology and consulting often offer higher-than-average salaries. These firms need to protect highly sensitive and confidential data so are usually prepared to pay a premium in order to secure the best talent.
Penetration tester is a role that people often move into having built up a few years’ experience in another relevant position, such as cyber security analyst. As such, even for those new to the area, starting salaries can be higher than other cyber security jobs. However, as you continue to build your knowledge and experience, you can expect to see your pay rise significantly.
Here’s how average salaries compare for varying experience levels including bonuses, again according to Glassdoor:
In order to command the best cyber security penetration tester salary at different points in your career, it’s worth understanding the factors that will have an impact. Depending on your circumstances, you may be able to stack some of these in your favour.
Most pen testers will hold a bachelor’s degree in computer science or a relevant subject, so it could be worth obtaining a higher qualification at the beginning of your career. Having studied a master’s degree or even obtained a doctorate will not only increase your earning potential, but also help you stand out from other candidates applying for ethical hacking roles.
As a penetration tester, you must keep on top of industry developments and enhance your skills throughout your career. Having the right professional certification can hugely help with this.
For example, one of the most valued qualifications for this role is Certified Ethical Hacker. Even if this is not a specific requirement, having this on your CV will make you more attractive to employers. Indeed, figures from EC-Council have suggested that IT pros with this certification earn up to 54 per cent more than those without it.
The best penetration tester salaries are open to those willing to relocate to take on a role. Destinations where demand outstrips supply will pay above the average ethical hacking salary to ensure vacancies are filled. Major UK tech hubs such as London, Manchester and Cambridge also typically offer higher salaries. Always research the location and weigh up any pay increase against the cost of living before making a decision.
Once you’ve secured a role as a penetration tester, there are a range of steps you can take to improve your skills and command a higher salary. Key things to consider include:
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