Senior Principal Systems Engineer – Desktop Engineering

DAn Solutions • Sterling, VA

8d • Onsite

About The Position

DAn Solutions is seeking an experienced Senior Principal Systems Engineer to support enterprise desktop engineering and endpoint infrastructure for a government customer. The role focuses on engineering, deploying, securing, and maintaining Windows, Apple, and Linux desktop environments while ensuring compliance with established security standards. The position is onsite in Annapolis Junction, Maryland, or Sterling, Virginia; remote work is not available. An existing, active TS/SCI clearance with CI polygraph is required.

The engineer will develop endpoint strategies, maintain approved Windows installation media and security baselines, manage security updates and application deployments, and support secure desktop lifecycle management. The role also includes engineering desktop images and configurations, managing Group Policy through Active Directory, and maintaining technical documentation.

Requirements

• Active TS/SCI clearance with CI polygraph.
• Bachelor's degree and at least six years of relevant experience, or an equivalent combination of education and experience.
• DoD 8570 IAT Level II certification compliance; accepted certifications listed are Security+ CE, CND, SSCP, GSEC, GICSP, CySA+, or CCNA Security.
• Extensive experience with Windows 10, Windows 11, and macOS endpoint environments.
• Strong knowledge of Active Directory, Group Policy, and SCCM.
• Experience deploying, configuring, and managing enterprise Windows systems.
• Scripting experience with Python, PowerShell, and Bash.
• Familiarity with VMware ESXi and vSphere.

Responsibilities

• Develop and implement endpoint engineering strategies aligned with enterprise technology roadmaps.
• Maintain DISA-approved Windows installation media and Secure Host Baselines (SHB).
• Package, test, and deploy Windows and Microsoft Office security updates.
• Develop and maintain configuration guides and technical documentation.
• Design, test, deploy, and maintain Group Policy Objects (GPOs) through Microsoft Active Directory.
• Engineer and maintain desktop images, applications, and configuration updates.
• Deploy and update approved applications using the PowerShell App Deployment Toolkit (PSADT).
• Support secure desktop lifecycle management, compliance, and system improvements.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior