Application Penetration Tester Onsite / London, UK Our client is seeking a highly skilled and experienced Application Penetration Tester to join their dynamic team. This role is ideal for someone with a passion for cybersecurity, a deep understanding of application security, and the ability to identify and mitigate vulnerabilities. The successful candidate will play a critical role in ensuring the security of our applications and guiding our security testing and vulnerability triage. As part of this project, you will conduct a comprehensive security assessment of a cloud-native, microservices-based architecture. Your focus will be on web and mobile applications and cloud security testing, adversary emulation, and continuous security posture improvement. You will leverage your expertise in application security, utilizing tools such as SAST (Static Application Security Testing), DAST (Dynamic Application Security Testing), and SCA (Software Composition Analysis) to perform both static and dynamic source code reviews. Additionally, you will employ threat modeling and threat actor attack pathing to continually validate the effectiveness of the customer’s security controls. The primary goal is to ensure that the security controls implemented by the organization are functioning as intended. By doing so, you will enhance the overall security defenses and collaborate with global development teams to maintain the ongoing security of the globally adopted application. Job Description Highlights Security Testing of Developer Operations and Mobile Apps: Conduct thorough security testing of developer operations and mobile applications (iPhone and Android). Identify security issues and vulnerabilities. Source Code Reviews: Perform in-depth source code reviews to identify security flaws or weaknesses. Executing Tests/Assessments and Drafting Reports: Execute detailed assessments and compile findings into reports for further review and action. Required Skills and Experience: Bachelor’s degree in computer science, Software Engineering, or related field, or equivalent job experience. Professional certifications such as GWAPT (GIAC Web Application Penetration Tester), OSCP (Offensive Security Certified Professional), CEH (Certified Ethical Hacker), or similar. 3-5 years of experience in application security testing and source code review. Proficiency in multiple programming languages and understanding of secure coding practices. Strong analytical skills and attention to detail for identifying vulnerabilities. Testing Developer Flows and Mobile Apps: Conducts thorough security testing of developer workflows and mobile applications (for both iPhone and Android platforms), identifying security issues and vulnerabilities. Conducting Source Code Reviews: Performs in-depth source code reviews to identify security flaws or weaknesses that could be exploited in software applications. Executing Tests/Assessments and Drafting Reports: Executes detailed assessments and compiles findings into reports for further review and action. Tools and Technologies: Experience with tools like Burp Suite Pro, Checkmarx, Corellium, Synopsys, Acunetix, VeraCode, SAST & DAST Tools, Plextrac, Cloud security (AWS / Azure / Oracle), Postman, SmartBear ReadyAPI, SoapUI, and Hashicorp Vault. LI-PS1