Demo

Sr. Software Engineer II

Eliassen Group
Washington, DC Full Time
POSTED ON 6/10/2026
AVAILABLE BEFORE 7/8/2026
Description

On-site in Washington, DC

Our client seeks a Sr. Software Engineer II to design and manage enterprise endpoint security solutions across DoD and IC environments. The role requires deep expertise with Trellix and Windows/Linux systems, leadership of engineering efforts, incident response support, and delivery of technical reporting in classified, high-availability settings.

This is a full-time, permanent opportunity, offering a competitive salary and comprehensive benefits package. Qualified applicants must be willing and able to work on a w2 basis.

Salary: $160,000 - $185,000/ yr. w2

Responsibilities

  • Implement and apply technologies, processes, and practices designed to protect networks, devices, programs, and data from malicious attack, damage, or unauthorized access.
  • Provide engineering and sustainment support for endpoint security solutions.
  • Establish computing environments by designing system configuration, directing system installation, and defining, documenting, and enforcing system standards.
  • Provide detailed guidance for hardware and software selection, implementation techniques, and tools to meet current and future capacity requirements.
  • Collaborate with software vendors and customers to research, analyze, and implement enterprise-wide security solutions and enhancements that support mission objectives.
  • Assist with design, analysis, testing, and implementation of secure architectures.
  • Oversee security infrastructure sustainment, maintenance, and advanced configuration, including policy management, database administration, and security management tools.
  • Oversee reporting, documentation, and investigation of security incidents and lead development and implementation of corrective measures.

Experience Requirements

  • Active TS/SCI security clearance.
  • 7 years of experience in software engineering.
  • DoD 8140 (DCWF CSSP Infrastructure Support certification).
  • Strong working knowledge administering applications in Windows and Linux environments.
  • Expert-level experience deploying and managing Trellix ePO, Threat Prevention, DLP, Endpoint Security (ENS), Policy Auditor, File Integrity Monitor (FIM), and Application Whitelisting.
  • Demonstrated experience setting up Trellix from scratch, including policy configuration, system deployment, and integration with Microsoft SQL databases.
  • Experience with large-scale enterprise or global networks in a high-paced, diverse environment.
  • Understanding of and experience with the IC Architecture Framework and other key network architecture and strategic planning instructions.
  • Experience providing status reports and products to senior management and customers.
  • Experience with planning, designing, and evaluating security systems and architectures.

Education Requirements

  • Active TS/SCI security clearance.
  • Degree preferred but not required.

Salary : $160,000 - $185,000

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