Offensive Security Engineer

Palantir; Washington; On-site; USD 150,000 - 210,000; Full time

Job summary

Palantir in the United States is seeking an Offensive Security Engineer to test internal applications and infrastructure, and to shape realistic attack paths with engineers who own the systems. A growing part of the work involves developing agentic offensive security tooling, including LLM-driven systems applied in live assessments.

You will coordinate third-party penetration testing engagements, scope work with external firms, and translate findings into concrete remediation to reduce risk

Job description

A World-Changing Company

Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more.

The Role

Palantir's Offensive Security team probes our own products, infrastructure, and cloud environment the way a real attacker would. As an Offensive Security Engineer, you will test internal applications and infrastructure, chain findings into realistic attack paths, and work directly with the engineers responsible for the affected systems to get issues closed.

A growing part of the team’s work is also developing agentic offensive security tooling: LLM-driven systems that encode operator tradecraft and apply it continuously. You will help in the design of that tooling and prove it out on live assessments.

You will also help to coordinate third-party penetration testing engagements, scoping the work with specialized external firms, keeping assessments focused on the risks that matter, and turning their results into concrete remediation.