Offensive Security Engineer — Build, Break & Automate Security

Palantir Technologies; Washington (Washington County); Hybrid; USD 145,000 - 200,000; Full time

Benefits offered by this job

Medical, dental & vision insurance

Relocation assistance

Paid time off

2 weeks PTO at year end

Paid holidays

401(k) plan

Job summary

Palantir Technologies is seeking an experienced Offensive Security Engineer to test internal applications and infrastructure, and to develop agentic offensive tooling for live assessments.

You will coordinate third-party pentests, scope engagements with external firms, and translate findings into prioritized remediation. Collaboration with engineering teams will help reproduce fixes and improve Palantir’s security posture across its stack.

Qualifications

• 4+ years of professional experience in offensive security, penetration testing, red teaming, or a closely related field.

Responsibilities

• Conduct hybrid web application penetration tests that combine source code review with runtime exploitation across Palantir’s products and internal tooling.
• Perform external network penetration tests against internet-facing infrastructure, identifying exposed services, misconfigurations, and paths to obtain an initial foothold.
• Perform internal network and Active Directory security assessments, identifying privilege escalation paths, lateral movement opportunities, and misconfigurations.
• Assess the security of cloud and containerized infrastructure, including identity, network, and workload configurations.
• Collaborate with detection engineering to validate telemetry and detection coverage against real-world attack techniques uncovered during engagements.
• Scope and manage third-party pentest engagements end-to-end, critically review results, and work cross-functionally to convert findings into prioritized, actionable remediation.
• Partner with engineering to reproduce, prioritize, and verify fixes for the issues that are surfaced.
• Design and build offensive security tooling and automation tailored to Palantir’s stack.
• Author clear, actionable write-ups and readouts for technical and non-technical stakeholders, translating findings into business risk and prioritized action.

Skills

Web app penetration testing

External network pentesting

Internal network pentesting

Cloud security

Automation tooling

CI/CD / IaC awareness

Tools

Burp Suite

BloodHound/SharpHound

Certipy

Impacket

Responder

Pacu/ScoutSuite

Nuclei

Job description

Palantir Technologies is seeking an experienced Offensive Security Engineer to test internal applications and infrastructure, and to develop agentic offensive tooling for live assessments.

You will coordinate third-party pentests, scope engagements with external firms, and translate findings into prioritized remediation. Collaboration with engineering teams will help reproduce fixes and improve Palantir’s security posture across its stack.