Senior Application Security Engineer

Partner with the engineering team to provide hands-on technical guidance to software developers throughout the vulnerability remediation lifecycle. Perform secure code reviews, validate false positive determinations, coach developers on effective remediation strategies, threat model our products and carry out essential parts of a secure SDLC.

Drive vulnerability identification using SAST, DAST, SCA and in-house AI tooling and manage external penetration testing.

Support engineering team on vulnerability management, including risk assessment, remediation, improving identification of vulnerabilities and translate security and privacy requirements into technical requirements.

Build security awareness through training on secure coding practices, security standards and latest security threats.

Security Communication – Ability to reason about risk in complex environments and communicate that risk to technical and non-technical audiences. Experience leading training, speaking internally/externally about security projects valued.

Programming Skills – Experience writing and maintaining code in at least one modern programming language and with at least one scripting language (Heartflow uses C++/Python). Comfortable with testing frameworks and CI/CD pipelines.

AI Development Tools – Experience using AI code tools such as Claude Code and Github Copilot for development and security testing.

Education & Experience – BS in Computer Science (or related degree) or relevant certifications and equivalent experience. 5+ years of total experience with at least 1 year working in Application Security or performing security tasks in a development role.

Securing SDLC – Have contributed to secure SDLC activities, including threat modeling, code review, security testing and vulnerability management.

Knowledge of Modern AI Security Threats – Experience working with or ability to discuss current AI threats for both machine learning and generative AI.