Senior Application Security Engineer

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Application Security Engineer based in the United States. This role offers the opportunity to strengthen application security across a portfolio of SaaS platforms serving mission-driven organizations. You will work hands-on with software development and production teams to embed security throughout the software development lifecycle. The position combines application security engineering, cloud infrastructure, vulnerability management, penetration testing, and security automation. You will help shape security tooling, processes, and standards while identifying practical ways to reduce technical risk and security debt. A strong focus on AI-driven automation provides opportunities to streamline workflows and improve the efficiency of security operations. You will collaborate closely with developers, engineering leaders, product teams, and security leadership to make secure development more proactive and scalable. This is a high-impact remote role where your technical judgment and ability to influence teams will directly contribute to a stronger security posture.