Sr Security Engineer

Job Summary

The Impact of a Sr Security Engineer at Coupa: Coupa's Sr Security Engineer is a key part of the Red Team, responsible for challenging and improving the company's security posture by simulating real-world attacks. This role will involve executing programs and tools to protect the Coupa Cloud for our growing customer base. This is a hands-on role. We need people who are self-motivated, have a strong desire to learn, a can-do attitude, tenacity to solve problems, team players, and results focused.

Responsibilities

• As a Sr Security Engineer, you will execute sophisticated penetration tests and red team exercises. You will also contribute to the development of new attack techniques and testing methodologies.
• Conduct penetration testing on internally and externally hosted applications such as Web apps, Mobile Apps, AI/LLM and APIs, leveraging both traditional and AI-powered tools.
• Perform specialized security assessments and penetration testing on Coupa's AI and LLM integrations, specifically targeting prompt injection, jailbreaking, data poisoning, and model evasion.
• Develop, deploy, and manage AI agents for continuous and autonomous security testing and vulnerability discovery.
• Identify network and system vulnerabilities and provide recommended countermeasures or mitigating controls to reduce risk to an acceptable and manageable level.
• Perform penetration and remediation testing reporting and apply advanced penetration techniques in a fast-paced, highly technical environment.
• Guide and consult development teams on secure coding best practices, including security for AI/ML models.
• Serve as a key escalation point during critical security incidents, leveraging deep technical knowledge to lead root-cause analysis and threat hunting efforts.
• Maintain, support, and extend our application security tooling, standards, and processes, including but not limited to SAST, DAST, WAF, and emerging AI-based security analysis platforms.

What You Will Bring to Coupa

• 3-8 years of experience in an equivalent security-related role, with hands-on experience in AI-driven security testing.
• Bachelors or Masters degree in Computer Science (or equivalent), or equivalent experience.
• Hands-on Experience in developing or utilizing autonomous, agentic systems for security penetration testing.
• Proven track record of building and maintaining cross-functional relationships, effectively navigating organizational friction to implement necessary security improvements.
• Relevant security certifications are a plus, but not required (CEH, OSCP, GPEN, LPT, EWPTX).
• Strong experience in web / API security, with a focus on testing and defending against attacks on AI/ML systems.
• Familiarity with Cloud environments such as AWS, Azure, GCP.
• Hands on experience in handling and managing bug bounty programs.
• Proficiency in one or more scripting languages, with a strong preference for Python for AI/ML development.
• Knowledge of common application security issues (e.g. OWASP Top 10, SANS Top 25) and familiarity with the OWASP Top 10 for Large Language Models.
• Well-versed with pentest standards/frameworks such as PTES, OSSTMM, NIST, OSINT, and OWASP.
• Ability to translate complex, highly technical security findings into actionable business risks for non-technical stakeholders and executive leadership.
• Ability to work in a team environment.

Disclaimer: This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.