Lead Adversarial Security Engineer

Trellix is seeking an Adversarial Security Engineer to lead the evolution of its cybersecurity posture. This is a senior, hands-on, remote-first role for a red/blue/purple expert who possesses a valuable blend of offensive tradecraft and defensive-engineering skills. As a lead member of the security operations team, the mission of this role is to bridge the gap between "what if" and "what is" to continuously test the organization's defenses, find gaps, and personally lead the engineering effort to close them. By collaborating with the SOC, Threat Intelligence, and infrastructure teams, this expert will act as a force multiplier, mentoring junior security operations staff and providing the technical leadership to measurably improve the ability to detect and respond to advanced threats. The role involves planning and executing sophisticated, end-to-end red team engagements, developing and validating new detection logic, leading continuous purple team exercises, leveraging Attack Surface Management (ASM) data, acting as a senior technical leader, and communicating complex findings to stakeholders.