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Security Tester | Ethical Hacking | Cloud & Mobile We are looking for an experienced Security Tester to join the Vulnerability Management Team at a leading top tier bank. This team plays a vital role in protecting online banking environments and mobile apps used by millions of customers globally. You will be responsible for identifying, testing, and advising on vulnerabilities across web, mobile, and infrastructure platforms - all within an enterprise-level, cloud-first environment. As a Security Tester, you will perform security testing and code reviews across applications built in Java, .NET, React, and AngularJS. Your role contributes directly to securing critical banking systems, from login processes to money transfers, ensuring safe digital access for customers worldwide. About the role As a Security Tester, you are responsible for testing the security of applications and infrastructure built or used by the bank. You perform vulnerability assessments, penetration testing, and secure code reviews on both in-house developed and externally delivered applications. You will: contribute to a wide range of services including responsible disclosure, vulnerability hunting, technical state monitoring and security scanning. work in a team of expert ethical hackers to continuously test and improve the security posture of systems built on technologies such as Java, .NET, React, AngularJS, Azure, AWS, and mobile platforms (iOS/Android). Who are you? Proven experience in a similar security testing or penetration testing role Hands-on experience with (web/mobile) application testing, code scanning, DAST/SAST tooling Able to review code in Java, .NET, React, and AngularJS Understanding of infrastructure and network security (Azure, AWS, Linux, Windows) Familiarity with mobile testing for iOS and Android OSCP or equivalent certification preferred Comfortable working in Agile teams Strong communication skills and a proactive, analytical mindset Fluent in English; Dutch is a plus About Levy Professionals Since 2000 we provide professional solutions to organizations ranging from tech start-ups to global players. From our offices in Amsterdam and London we have built an international and local network of skilled employed professionals and contractors fuelled by our passion for connecting skills with projects. Over the years we have fulfilled over 1700 requirements and nowadays we consistently have 250+ professionals recruited and relocated from 14 countries allocated to various projects. Our strength is the way that we see and treat people. This will always be a key factor in our strategy for many years to come.