Threat Emulation Engineer - Blue/Purple Team

Threat Emulation Engineer - Blue/Purple Team

Candidates MUST have an active Top Secret/SCI clearance with a CI Poly within 10 years for consideration. This position is 100% onsite in Chantilly, VA

Join Our Elite Security Team – Where Innovation Meets Impact!

Are you ready to become a technical leader who solves the most challenging security problems organizations face—including the ones they don't even know exist yet? As a Security Engineer, you'll be responsible for service delivery and expected to be a product subject-matter expert, working independently on small projects and collaboratively on large-scale enterprise deployments. 

You'll fuel solutions that make the deepest impact across organizations, working in a fast-paced environment where your insatiable thirst for learning new technologies will be celebrated and supported. 

What Makes This Opportunity Exceptional:

Our goal is never to fix and leave, but to share knowledge through comprehensive documentation and knowledge transfer, ensuring you build upon meaningful work. You'll be part of a large internal support group with extensive experience and benefit from our internal training program designed to increase your skills and keep pace with technology changes. We focus on enabling our engineers to become complete security professionals able to analyze security solutions, not just install and configure products. You'll gain a broad spectrum of knowledge and skills that allow you to give advice and direction relevant to today's threats. 

No Prior Experience with Automated Security Validation Required: While experience with Mandiant Security Validation Tool would be great, we'll train you on the tool if you have a solid foundation in cybersecurity. We're vendor neutral security engineers providing services that meet customer needs, not our own or that of vendors.

Role & Responsibilities

• Complete internal training for Automated Security Validation (ASV).
• Lead complex ASV deployments and partner with customers to address diverse security use cases.
• Assess customer security posture and requirements to guide solution design.
• Maximize ASV value by enabling customers and supporting their cybersecurity strategy.
• Collaborate with internal product and technical teams to deliver solutions and drive innovation.
• Apply prior experience, share best practices, and develop creative approaches to increase adoption.
• Empower customers to independently address future security questions.

Required Qualifications

• 5–10 years of security systems engineering and troubleshooting experience.
• Strong understanding of cyber threat techniques, intelligence analysis, and adversary TTPs.
• Familiarity with MITRE ATT&CK and similar threat frameworks.
• Experience designing log ingestion and aggregation strategies.
• Knowledge of key security events across common IT platforms.
• Proficiency with Windows, macOS, and Linux systems.
• Experience with networking and security troubleshooting (firewalls, routing, NAT, etc.).
• Ability to manage and deliver multiple projects independently.
• Active DoD 8570 IAT Level II+ certification (e.g., Security+, CEH).
• Active TS/SCI clearance with polygraph.

Preferred Qualifications

• Experience configuring and utilizing enterprise SIEM platforms.
• Understanding of OS auditing (Syslog, Windows Event Logs).
• Experience with Mandiant Security Validation or other Breach and Attack Simulation (BAS) tools.
• Red or purple team experience.
• Experience developing SOC runbooks, workflows, and policy documentation.
• Familiarity with various scripting languages (bash, python, powershell, perl)
• Bachelor’s degree in a relevant field or equivalent experience.