Trellix Endpoint Engineer - D2 Technical Services

ACTIVE TS/SCI SECURITY CLEARANCE REQUIRED

Protect the Mission. Defend the Edge.

D2 Technical Services is looking for a Senior Endpoint Security Engineer who's ready to do work that actually matters. You'll be embedded with our team supporting the National Geospatial-Intelligence Agency (NGA) — one of the Intelligence Community's most critical GEOINT missions. This is a long-term, stable contract meaning you get the stability of a large program with the agility of a specialized team.

If you're the kind of engineer who takes pride in building airtight security architectures, staying ahead of threats, and owning enterprise-level endpoint solutions — this role was built for you.

What You'll Own

You won't be a cog in a machine here. You'll be a key voice in shaping how endpoint security is designed, deployed, and sustained across a large-scale enterprise environment:

• Architect and enforce security configurations that protect networks, devices, and data from real-world threats
• Lead engineering and sustainment of enterprise Trellix endpoint security solutions (ENS, DLP, Policy Auditor, FIM, Application Whitelisting)
• Drive security infrastructure from design through implementation — including system configuration, standards documentation, and policy management
• Partner directly with software vendors and the customer to research and roll out enterprise-wide security enhancements
• Own incident investigation and reporting, and lead the charge on corrective action
• Advise senior leadership and customers with clear, actionable status reports and security assessments

What You Bring

Required:

• Active TS/SCI clearance — must be current; polygraph required post-hire
• DoD 8140/8570 IAT Level II certification — current
• CSSP Infrastructure Support cert (CEH, CySA+, or similar) — or ability to obtain within 120 days
• Bachelor's degree in Engineering, Computer Science, or related field + 5 years of hands-on experience
• Solid expertise administering applications in Windows enterprise environments
• Proven experience with Trellix product suite in large-scale deployments
• Familiarity with DoD Architecture Framework and enterprise network strategic planning
• Comfortable briefing senior stakeholders and translating technical complexity into clear guidance

Why D2?

D2 Technical Services is a people-first company built on the belief that the right engineer in the right role changes everything. We invest in our people, support professional growth, and put you on programs where your skills make a direct impact on national security.

Ready to defend what matters most? Apply today.

Additional Information

• All your information will be kept confidential according to EEO guidelines.