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Senior penetration tester

Dublin
Harvey Nash
Penetration tester
€100,000 - €125,000 a year
Posted: 10 November
Offer description

Are you passionate about uncovering vulnerabilities before attackers do? Join a world-class cybersecurity team on a mission to protect global assets and customer trust through advanced ethical hacking and threat simulation.

As a Senior Penetration Tester, you’ll lead hands‑on testing across web, mobile, and enterprise systems — replicating real‑world attack techniques, uncovering weaknesses, and working collaboratively with development and operations teams to build stronger, more secure products.


What You’ll Do:

* Lead and execute penetration testing of applications, APIs, and supporting systems.
* Simulate attacker behaviour to identify, exploit, and report vulnerabilities.
* Communicate findings effectively to engineering and business stakeholders.
* Contribute to developing internal tools and techniques for vulnerability discovery.
* Stay ahead of emerging threats and security trends to drive continuous improvement.


What You Bring:

* 7+ years of IT experience, with 5+ years in web and application penetration testing.
* Strong command of manual testing (OWASP Top 10), scripting (Python, Java, or similar), and tools such as Burp Suite, Metasploit, and Kali.
* In‑depth understanding of authentication, encryption, and secure coding principles.
* Relevant certifications (OSCP, GPEN, GWAPT, or similar) preferred.
* Excellent communication and presentation skills with a collaborative mindset.


Seniority Level

Mid‑Senior level


Employment Type

Full‑time


Job Function

IT Services and IT Consulting

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