Senior Systems Engineer – Endpoint Security Fort Meade, MD

Position: Senior Systems Engineer – Endpoint Security Fort Meade, MD, US
## Senior Systems Engineer – Endpoint Security Fort Meade, MD, USApply Now Find out how well you match with this jobJob ID327798

Job Title:

Senior Systems Engineer – Endpoint Security Job Category:
Information Technology Time Type:
Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type:
Regular Percentage of

Travel Required:

None Type of Travel:
None     
** The Opportunity
** CACI is seeking a Senior Systems Engineer that will serve as a principal technical leader and subject matter expert for the National Security Agency’s Enterprise Endpoint Detection and Response (EDR) Program. Working within a highly classified, multi-domain environment, you will shape the strategic architecture, integration, deployment, and optimization of world‐class endpoint security platforms including Microsoft Defender for Endpoint (MDE) and Trellix HX.  

This is a chance to directly strengthen national security by engineering resilient endpoint defense capabilities that provide full enterprise visibility, rapid threat containment, and robust configuration management.
** Responsibilities
* ** Lead the full lifecycle engineering and scale-out architecture of MDE and Trellix HX across hybrid environments, including on‐premises, cloud, and virtual desktop infrastructures (VDI).
* Develop advanced system engineering documentation, deployment strategies, and implementation plans.
* Optimize agent configurations, exclusion policies, and system performance to ensure mission success and minimize friction across high‐demand environments.
* Monitor and maintain enterprise endpoint health at scale.
* Work directly with threat hunters and intelligence analysts to convert actionable intelligence into custom technical indicators of compromise (IOCs) using KQL and YARA.
* Serve as a primary technical advisor to Government stakeholders regarding system risks, design decisions, and engineering recommendations.
* Provide advanced forensic and technical support to the SOC during high‐priority incidents.
* Mentor junior and mid‐level engineers, fostering growth, collaboration, and technical excellence.
*
* Qualifications:

***
* Required:

*** 20+ years of experience as a Systems Engineer on programs of similar scope, type, and complexity.
* Proven experience planning and leading Systems Engineering efforts.
* Bachelor’s degree in Systems Engineering, Computer Science, Information Systems, Engineering Science, Engineering Management, or a related field from an accredited institution.  + Five (5) additional years of Systems Engineering experience may be substituted for a bachelor’s degree.
* ** Microsoft Defender for Endpoint Expertise:
** Hands‐on engineering experience with MDE architecture, deployment via MECM/SCCM or Intune, policy ring management, and advanced hunting using Kusto Query Language (KQL).
* ** Trellix HX Expertise:
** Proven ability to engineer, deploy, and manage Trellix HX controllers and agents within air‐gapped or highly restricted networks, including creating OpenIOC and YARA rules.
* ** Operating System & Forensic Knowledge:
** Deep understanding of Windows, Linux, and macOS internals, including file systems, registries, and process execution behavior.
* ** Professional

Certifications:

** Compliance with DoD 8570/8140 IAM Level II or III baseline requirements.
** Desired:**
* ** Vendor

Certifications:

** Microsoft Security Operations Analyst (SC‐200), Azure Security Engineer (AZ‐500), and/or Trellix engineering certifications.
* ** Methodologies & Tools:
** Experience with Model‐Based Systems Engineering (MBSE), Cameo, and Atlassian suite tools such as Jira and Confluence.
* ** Technical Frameworks:
** Familiarity with NSA Technical Manual standards (e.g., NSA DS‐89) and defense‐in‐depth engineering principles.
* *
* Core Competencies:

** Demonstrated collaboration skills, transparency in managing high‐consequence systems, and a passion for developing and mentoring technical talent.

- ** What You Can Expect:
**** A culture of integrity.
** At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and…