Senior Application Security Engineer

Prolific is looking for a Senior Application Security Engineer to join their team. The role involves securing Prolific's applications end-to-end, from hands-on testing and code review to threat modelling and CI/CD security.

Requirements

• Several years in application/product security or security engineering
• Strong knowledge of OWASP Top 10 (Web & API) and modern attack paths
• Experience working with complex, large-scale systems and modern architectures
• Hands-on security testing experience (especially Burp Suite) across web apps and APIs
• Python for security tooling, automation, or custom detection (Django a plus)
• Experience implementing and tuning SAST, SCA, DAST, and secret scanning in CI/CD
• Practical threat modelling experience, including leading lightweight sessions
• Strong collaboration skills, able to clearly explain issues and drive remediation
• Builder mindset, you automate wherever possible

Benefits

• Competitive salary
• Benefits
• Remote working within our impactful, mission-driven culture