Senior System Engineer

One Network Enterprises; Fort Meade (MD); On-site; USD 90,000 - 273,000; Full time

Benefits offered by this job

401K with employer contribution

PTO 5+ weeks

Health/Dental/Vision coverage

Training paid

Profit sharing

Job summary

Prodigy One, LLC is a systems and software engineering firm serving federal customers, offering tailored total compensation. The Senior Systems Engineer (Level 3) leads design, integration, and optimization of Microsoft Defender for Endpoint and Trellix HX across hybrid environments for the NSA EDR program.

Required are 20 years of systems engineering, MDE/Trellix HX expertise, and DoD IAM certifications. Fort Meade location, strong collaboration with threat intel, and mentorship for staff are

Qualifications

• Active TS/SCI clearance with Polygraph required.
• Extensive system engineering experience (20+ years).
• Expertise with MDE architecture, MECM/SCCM or Intune deployment.
• Experience with Trellix HX controllers and agents.
• Familiarity with Windows, Linux, macOS internals and forensics.

Responsibilities

• Lead lifecycle engineering and scale-out design for MDE/Trellix HX.
• Collaborate with threat intelligence to translate IOC data into engineering actions.
• Provide advanced forensics support and mentor junior engineers.

Skills

Systems engineering

Microsoft Defender for Endpoint

Trellix HX

Windows/Linux/macOS internals

DoD IAM Level II/III

Education

Bachelor's Degree in a relevant technical field

DoD 8570/8140 IAM Level II or III baseline

Tools

MBSE

Cameo

Jira

Confluence

Job description

Prodigy One, LLC. is a systems and software engineering services firm providing more than 45 years of service to state and federal customers. By combining unparalleled experience and capabilities, our company provides big data, cloud development, and enterprise management solutions. We are focused on product usability and end user presentation to help our customers make the best decisions possible. Given our length of service in the industry, Prodigy One knows the importance of a competitive salary and benefits package. That's why our total compensation package can be tailored to meet employees personal needs.

Clearance Required: Active TS/SCI clearance with Polygraph

Location: Fort Meade, MD

Salary Information: $90K 273K

Job Description:

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.

Basic Qualifications:

• 20 years system engineering experience
• 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.

Preferred Qualifications:

• 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.

Education Requirements:

• Bachelor's Degree in a relevant technical field (OR High School +5 additional years experience)

Benefits:

• 10% Employer Contribution to 401K; Immediately Vested
• 5 Weeks Paid Time Off (PTO) up to 7 weeks
• Access to Premium Healthcare/Dental/Vision Available
• $2500+ Training Paid
• Referral Company Profit Sharing

We are an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, protected veteran status, or any other characteristic protected by applicable law.