Trellix/MDE Systems Engineer 3

$203.31k - $217.12k

Full-time

Lentech Inc.

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.
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.
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.
Active and current TS.SCI w FSP through MD
Professional Standards: Compliance with DoD 8570/8140 IAM Level II or III baseline certifications
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.
Education :
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
About Lentech, Inc.
Lentech, Inc., provides technology-enabled IT Solutions and Mission Technical Solutions to civil, defense and intelligence customers. Through our accumulated years of experience, industry expertise, and strategic partnerships, Lentech has built mission-critical solutions for our federal and commercial customers. Lentech’s clients achieve full life-cycle support and cost-effective managed services supporting enterprise computing and applications initiatives for Government agencies. Lentech’s Mission Technical Solutions Division is focused on providing engineering, operations, I&T and technical services to civil and defense customers primarily in the aerospace fields.

Lentech, Inc. is a performance-based company providing employees with challenging and interesting work, competitive pay and benefits, and opportunities to learn and grow. We focus on providing an environment of fun, sharing, collaboration and connection. Our culture is team oriented, non-hierarchical and entrepreneurial. It gives people a chance to participate and be a factor in the company’s growth and success.

Lentech, Inc. is an Equal Employment Opportunity (EEO) employer and considers all qualified applicants for employment without regard to race, color, religion, gender identification, national origin, sexual orientation, age, marital status, disability, protected veteran status, or any other factor prohibited by applicable law. We are proud of the diversity of our staff and seek diversity in our applicants.
The proposed salary range for this position is: $ $203,305.00 $217,122.00

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Vacancy posted a month ago

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