Staff Application Security Engineer

Overview

How you’ll Make an Impact The Security Engineer plays a critical role in strengthening the security of Epsilon’s software applications by embedding security into the development lifecycle and advancing AI-enabled engineering practices. You will provide strategic oversight on secure coding, drive effective use of application security platforms, and leverage AI to scale security outcomes, accelerate delivery, and improve code quality across Product and Engineering teams.

Rather than executing testing directly, you will guide teams in interpreting results, prioritizing remediation, and using AI responsibly, validating outputs and aligning them to Epsilon’s security standards.

In this role, you will measurably improve the security posture of Epsilon’s software applications by driving consistent, risk-based application security practices across teams and leveraging AI to scale and enhance security outcomes. Through oversight, guidance, and clear recommendations, you will help reduce vulnerabilities, align practices with security policies, and evolve how application security is understood and applied across the organization. By incorporating AI‑assisted approaches into engineering workflows, you will help teams accelerate remediation, strengthen code quality, and embed security earlier in the development lifecycle.

• Provide oversight and strategic direction for Epsilon’s application security platforms, ensuring they are effectively configured, adopted, and used by Product and Engineering teams (Veracode, Sonar Qube, Wiz experience is a plus).
• Guide and review the analysis of application security findings, working with embedded Security Champions and engineering teams to interpret results, prioritize risk, and recommend remediation strategies.
• Partner closely with Product, Engineering, and embedded Security Champions to ensure application security expectations are understood, consistently applied, and aligned with Epsilon’s security policies and standards.
• Integrate AI into Application Security to Enable Secure‑by‑Design Engineering. Drive the adoption of AI‑enabled development practices that embed application security directly into the software development lifecycle. Guide teams in using AI tools to generate, review, and remediate code securely, ensuring outputs are governed, validated, and aligned with enterprise security standards. Expand application security beyond traditional tooling by positioning AI as a scalable mechanism to improve security coverage, consistency, and engineering productivity.
• Serve as a trusted advisor to engineering teams by providing clear guidance, risk context, and actionable recommendations—translating complex security risks and requirements into practical, business‑relevant decisions rather than executing security testing directly.
• Communicate with confidence and clarity across technical and non‑technical audiences, effectively influencing outcomes by articulating security risks, tradeoffs, and recommendations in a way that drives understanding and action.
• Produce and deliver monthly KPI‑based reporting that highlights trends, risk posture, adoption metrics, and actionable insights for both technical stakeholders and executive leadership.
• Educate, coach, and enable development teams and embedded Security Champions on secure coding expectations, application security platforms, and Epsilon security policies.
• Drive the onboarding of new teams and applications into application security platforms, ensuring consistent implementation, accountability, and long‑term adoption.
• Build and maintain strong, trust‑based relationships across Product, Engineering, and Security to influence outcomes, reinforce shared ownership, and continuously mature application security practices.

What You’ll Bring With You

• Ability to Influence and Collaborate — You have the interpersonal strength to engage teams, challenge assumptions constructively, and build credibility as a trusted security partner rather than a blocker.
• Analytical and Problem‑Solving Skills — You possess strong analytical skills and a structured approach to problem‑solving, enabling you to effectively…