Security Tester
We are seeking a skilled Security Tester to assess the resilience of applications, systems, networks, and services against cyber threats. In this role, you will plan and conduct security testing activities, identify vulnerabilities, validate security controls, and provide clear recommendations to reduce risk. You will work closely with development, infrastructure, engineering, and risk teams to support secure delivery throughout the technology lifecycle.
Your responsibilities will include performing web application, API, mobile, network, cloud, and infrastructure penetration testing; conducting vulnerability assessments and configuration reviews; and evaluating systems against recognised security standards and testing methodologies. You will research emerging threats, develop appropriate test cases, safely exploit vulnerabilities where authorised, and document evidence in detailed technical reports. You will also present findings to technical and non-technical stakeholders, explain business impact, agree remediation priorities, and carry out follow-up testing to confirm that issues have been resolved.
The successful candidate will have practical experience in penetration testing, vulnerability assessment, or a closely related security testing discipline, together with a strong understanding of common vulnerabilities, authentication mechanisms, secure development principles, and network protocols. Familiarity with tools such as Burp Suite, Nmap, Metasploit, vulnerability scanners, scripting languages, and cloud security platforms is desirable. Relevant certifications such as CREST, OSCP, OSWE, CHECK, or equivalent experience would be advantageous. You should be analytical, methodical, and comfortable working independently while collaborating effectively with colleagues. Strong written and verbal communication skills are essential, as is the ability to manage competing priorities, maintain accurate records, and conduct all testing responsibly within agreed rules of engagement.
Security Tester
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