Senior Application Security Engineer

Role overview Help strengthen application security across web products and integrated AI systems. The work combines architecture reviews, vulnerability assessment, penetration testing, and hands-on security automation, partnering with engineering teams to validate risks and drive remediation.

Responsibilities - Join threat modeling sessions for application architectures and AI-driven workflows. - Triage security findings from software composition, static and dynamic analysis, and cloud security tools; filter false positives and share validated issues with engineering teams. - Support vulnerability management for networks and infrastructure, and coordinate timely remediation with engineers. - Conduct security assessments, design and code reviews, and internal penetration tests. - Build scripts and tools to automate security tasks such as log analysis, patch management, and incident detection. - Integrate security tools with existing systems using custom code and APIs.

Requirements - Bachelor’s degree or higher in computer science or a related field, or equivalent practical experience. - At least 3 years of application security experience across areas such as threat modeling, secure design or code review, and penetration testing. - Proficiency in a programming or scripting language such as Python or Go. - Experience testing web applications, including through penetration testing, security competitions, or bug bounty work. - Knowledge of AWS security and engineering, and experience developing or testing web technologies. - Clear communication skills and the ability to work effectively with business and engineering partners.

Nice to have - Security certifications such as OSCP, OSWP, eCPPT, eWPT, or Security+. - Experience with Linux, Docker, Terraform, or REST APIs.

Benefits and work setup - Benefits include paid parental leave, flexible time off, spending accounts, medical, dental, and vision coverage, and a sabbatical after five years. - The source lists a gross annual base pay range of GBP 72,000–87,000, plus variable compensation; final pay depends on qualifications, experience, education, and location.