CareerPlan

Principal Penetration Tester

United States, Washington, RedmondFull-time2026-10-15 → 2026-11-09
Citizens only

Core

Leads comprehensive penetration testing, adversary emulation, and offensive/defensive security operations across applications, cloud, network, hardware, and OT systems.

Role type

Principal Penetration Tester (Offensive Security Lead)

Builds

Security testing engagements, attack path demonstrations, and actionable detections for federal/state/local government agency customers.

Domain

Cybersecurity / Operational Technology (OT) / Industrial Control Systems (ICS)

Required skills

Penetration testing, adversary emulation, vulnerability identification, offensive security operations, team leadership, executive risk communication, AI/automation for security, statistical analysis, anomaly detection, KQL queries, OT/ICS security, cloud security (Azure/AWS/GCP), coding/scripting (C#, Python, C++, Go, PowerShell, .NET, Rust), security frameworks (OWASP, MITRE ATT&CK, NIST), LLMs/embeddings/RAG.

Preferred skills

Offensive security certifications (OSCP, OSEP, OSCE, GPEN, GXPN), OT/ICS certifications (GICSP, GRID).

Technologies

Python, C#, C++, Go, PowerShell, .NET, Rust, KQL, Power BI, Azure DevOps, Azure, AWS, GCP, LLMs.

Responsibilities

Lead and participate in penetration testing across all service layers; perform end-to-end adversary emulation; organize and direct the team on engagement rules and scoping; mentor team members; research emerging threats and tools; apply AI/automation to scale testing; partner with detection and incident response teams; create executive-level presentations and data-driven reports.

Seniority

Principal, strategic leadership with hands-on technical execution.