Sr. Systems Engineer (Endpoint Detection & Response)

Power3 Solutions; Fort Meade (MD); On-site; USD 180,000 - 240,000; Full time

Benefits offered by this job

Health, dental, vision plans (100% of

401k with 6% match

11 holidays + 25 days PTO

Career development & training

Employee referral bonuses

Job summary

Power3 Solutions is seeking a Sr. Systems Engineer (Endpoint Detection & Response) to lead the architecture, deployment, and optimization of MDE and Trellix HX across hybrid environments at Fort Meade, MD.

The role requires strong collaboration with threat analysts and government stakeholders to ensure endpoint visibility and robust defense against cyber threats. The ideal candidate will have extensive SE experience, DoD IAM certifications, and hands-on expertise with EDR technologies in

Qualifications

• The candidate must have a strong background in designing and deploying Microsoft Defender for Endpoint and Trellix HX.
• DoD 8570/8140 IAM baseline certifications or equivalent are required.
• Experience with high-security, air-gapped or restricted networks is preferred.

Responsibilities

• Lead lifecycle engineering and scale-out architecture for MDE and Trellix HX across hybrid environments.
• Author complex system engineering plans and tune agent configurations to reduce mission friction.
• Collaborate with threat hunting to translate intelligence into IOcs using KQL and YARA.

Skills

MDE Expertise

Trellix HX Expertise

OS Forensics Knowledge

DoD IAM Certification familiarity

Threat hunting collaboration

Kusto Query Language (KQL)

YARA rules

System Architecture

Education

Bachelor's degree in System Engineering/CS/IS

Tools

MECM/SCCM or Intune

KQL

YARA

Trellix HX

MDE

MBSE/Cameo

Jira/Confluence

Job description

Sr. Systems Engineer (Endpoint Detection & Response)

• Fort Meade, MD

We solve difficult business, IT, and analytic problems by addressing the whole problem - not just the symptoms - using interdisciplinary approaches that are both practical and innovative. We provide fresh alternatives to ordinary, mainstream consulting firms through small, highly skilled, and hand-picked teams that can meet clients' needs in any industry. Our broad interdisciplinary understanding allows us to provide the right solution, even if it is from outside the industry or traditionally defined problem space. We bring Public and Private, Civilian and Military expertise to every case.

We are hiring a Sr. Systems Engineer (Endpoint Detection & Response) to work in Fort Meade, MD. Position location is subjectto change based on central MD client's needs.

Required

TS/SCI with a Polygraph

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.

Essential Duties and Responsibilities

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.

Individual Capabilities/Experience Required

• Twenty (20) years experience as a SE in programs and contracts of similar scope, type and complexity is required. Demonstrated experience in planning and leading Systems Engineering efforts is required. Bachelor's degree in System Engineering, Computer Science, Information Systems, Engineering Science, Engineering Management, or related discipline from an accredited college or university is required. Five (5) years of additional SE experience may be substituted for a bachelor's degree.
• 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 airgapped 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.

Individual Capabilities/Experience 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.

We have all the PERKS!

You are our most valuable resource - your ambition, your knowledge, yourcreativity. We offer an industry-leading set of benefits to supplement your normalsalary compensation. We have you covered with flexible ways to balancework and home life, full health benefit premium coverage, and generouscontributions toward your retirement.

• Competitive health, dental, and vision plans with 100% paid premiums.
• 401k: We contribute 6% even if you don't!
• Time Off: 11 standard holidays, and 25 days of PTO
• Career Development: Get career counseling and individualized career development plans, including education and training.
• Employee referral bonuses for successful hires

We are anEqual Opportunity/Affirmative Action employer.

We provide equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.

This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.