Eliassen Group
Sr. Software Engineer II
Washington, District of Columbia, US
Role snapshot
Eliassen Group is hiring a Sr. Software Engineer II on a full-time basis. This is an on-site role based in Washington, District of Columbia, US.
- Company
- Eliassen Group
- Location
- Washington, District of Columbia, US
- Work mode
- On-site
- Job type
- Full-time
- Experience
- 7+ years
- Posted
- Oct 21, 2026
Who this role suits
Experienced professionals who can lead projects, set direction and be accountable for outcomes, not just tasks.
How to prepare your application
- Prepare examples of decisions you drove, how you measured the result, and how you worked with other teams.
- Be ready to discuss trade-offs and scope, not only the tools you have used.
- Read what Eliassen Group publishes about its product or team, so you can say clearly why this role and this company.
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About the role
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
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.
- 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.
- Active TS/SCI security clearance.
- Degree preferred but not required.