ITC is a Woman Owned Small Business delivering exceptional consultation to the U.S. Government in Systems/Software Engineering, Cybersecurity Solutions, Mission Operations/INTEL Analysis, and Management Services in order to enable our customers to solve the most challenging problems. With continued growth comes opportunity, and we are currently searching for a Top-Secret SCI with polygraph-cleared Senior- level Systems Engineer

The Senior Systems Engineer (Level 3) serves as a principal technical leader and subject matter expert within the National Security Agency’s Enterprise Endpoint Detection and Response (EDR) Program. Operating in a highly classified, multi-domain infrastructure, the successful candidate will drive the strategic architectural design, end-to-end integration, deployment, and optimization of premier endpoint security platforms, specifically Microsoft Defender for Endpoint (MDE) and Trellix HX. This critical role bridges high-level systems architecture with operational defense capabilities, ensuring total endpoint visibility, robust threat containment, and resilient configuration management across all enterprise and mission-critical assets to defend national security infrastructure against sophisticated cyber threats.

The Systems Engineer 3 is responsible for leading the lifecycle engineering and scale-out architecture of MDE and Trellix HX across hybrid environments, including on-premises, cloud, and virtual desktop infrastructures (VDI). This includes authoring complex system engineering and implementation plans, tuning agent configurations and exclusion policies to eliminate mission friction, and monitoring overall endpoint health at scale. The engineer will collaborate closely with threat hunting and intelligence analysts to translate actionable threat intelligence into custom technical indicators of compromise (IOCs), utilizing Kusto Query Language (KQL) and YARA rules. Additionally, the individual will act as a primary technical advisor to Government stakeholders on system risks and engineering considerations, provide advanced forensic support to the SOC during critical high-priority incidents, and actively mentor junior and mid-level engineering personnel within the program.

• TS/SCI with FullScope Polygraph
•  A Bachelor's degree in a Qualified Engineering Field.
• Microsoft Defender for Endpoint (MDE) Expertise: Proven engineering experience with MDE architecture, deployment strategies via MECM/SCCM or Intune, policy ring management, and advanced hunting using Kusto Query Language (KQL).
• Trellix HX Expertise: Demonstrated experience engineering, deploying, and managing Trellix HX (formerly FireEye) controllers and agents within air-gapped or highly restricted networks, including the creation of OpenIOC and YARA rules.
• Operating System & Forensic Knowledge: In-depth technical understanding of Windows, Linux, and macOS internals, including file systems, registry structures, and process execution mechanics.
• Professional Standards: Compliance with DoD 8570/8140 IAM Level II or III baseline certifications.

Desired:

• Vendor Certifications: Microsoft Certified: Security Operations Analyst Associate (SC-200), Azure Security Engineer Associate (AZ-500), or Trellix Certified Engineering credentials.
• Methodologies & Toolsets: Experience with Model-Based Systems Engineering (MBSE), Cameo, and workflow management within the Atlassian Suite (Jira, Confluence).
• Technical Frameworks: Familiarity with NSA Technical Manual Standards (e.g., NSA DS-89) and defense-in-depth engineering principles.
• Core Competencies: Strong record of team collaboration, exceptional transparency in managing high-consequence infrastructure, and an aptitude for developing technical leadership pipelines.

Benefits for this position include:

• 401K plan with company contributions (safe harbor and profit sharing)
• 11 Federal holidays, 21 Days PTO
• Medical, Dental, & Vision with substantial company contributions
• Company provided Life, LTD and STD Insurance
• Health Savings Accounts/ Flexible Spending Accounts
• Referral Bonuses
• Performance Bonuses
• Tuition Assistance for Education, Training, and Professional certifications
• Career Development

Many factors can influence final salary including, but not limited to relevant prior work experience, specific skills and competencies, education, and certifications. Final salary can also be influenced by a position’s geographic location, Federal Government contract labor categories, and contract wage rates.

The salary Range for this position is: $160,000-$240,000

ITC is an Equal Opportunity employer. Qualified applicants or employees will receive consideration for employment without regard to race, color, religion, ethnic or national origin, ancestry, age, sex, sexual orientation, gender identity, pregnancy (including childbirth or related condition) citizenship, familial status, mental or physical disability status, veteran status, genetic information, other non-disqualifying disability, or any other characteristic protected by law.