Penetration Tester Career Path in UK

Penetration Testers in Ireland earn between €60,000 and €115,000 depending on experience and specialisation. Junior Penetration Testers earn €45,000 to €60,000. Mid-level professionals with web application and network testing skills earn €60,000 to €85,000. Senior Penetration Testers with OSCP, CREST, or specialist OT or Active Directory attack skills earn €85,000 to €115,000. Lead Penetration Testers and Red Team Leads earn €115,000 to €150,000. Independent penetration testing contractors command significantly higher day rates.

Offensive Security Certified Professional (OSCP) from Offensive Security is the most universally recognised penetration testing certification in Ireland and the UK. CREST Registered Tester (CRT) is valued for consulting engagements with financial services clients. CREST Certified Tester (CCT) is the senior CREST credential. Certified Ethical Hacker (CEH) is widely recognised but considered less technical than OSCP by most Irish employers. eLearnSecurity Junior Penetration Tester (eJPT) is a solid entry-level certification. Web Application Hacker Handbook practical skills are expected for web application testing roles.

Dedicated Irish cybersecurity firms (Edgescan, Integrity360) are among the most active employers. Big Four consulting firms (Accenture Ireland, Deloitte Ireland, PwC Ireland, KPMG Ireland) all have growing security consulting practices that include penetration testing. BT Ireland and other managed security service providers hire penetration testers. Large financial services organisations (AIB, Bank of Ireland, Stripe) employ in-house red team and penetration testing professionals for continuous security testing programmes.

Active Directory attack techniques (Kerberoasting, pass-the-hash, LDAP enumeration, BloodHound) command the highest premium for penetration testers in the Irish enterprise market. Web application testing skills aligned with OWASP Top 10 are a baseline requirement but are also well-compensated. Python and PowerShell scripting for custom exploit development differentiates senior testers. OT and ICS penetration testing skills are the most specialised and highest-paid penetration testing capability in Ireland in 2026, given severe supply shortages.