Staff 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 Staff Application Security Engineer based in the United States.

• This is a senior security engineering opportunity focused on protecting applications, infrastructure, and software systems at scale.
• You will take ownership of application security programs while partnering closely with engineering and infrastructure teams.
• The role combines threat detection, vulnerability management, security testing, incident response, and security tooling.
• You will help build scalable security processes and integrate security practices directly into modern development and delivery workflows.
• The position offers significant autonomy, requiring strong technical judgment and the ability to navigate complex and ambiguous security challenges.
• You will also serve as a trusted security advisor and mentor, helping engineering teams strengthen their security practices.
• This is a remote opportunity within the United States, offering the chance to make a broad impact in a fast-moving, high-ownership environment.