Sr. Systems Engineer

Description:
Onsite in Washington, DC

our client seeks a Sr. Systems Engineer to manage and secure enterprise Windows and macOS endpoints for a high-visibility federal mission. The role will support classified and high-security environments, deliver compliant endpoint services, and drive operational stability within an Agile model. The engineer will handle imaging, patching, vulnerability remediation, and Tier 3 support while communicating risks and solutions to stakeholders. The position demands immediate contribution, clear judgment, and reliable execution.

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 - $190,000/ yr. w2

Responsibilities:

• Work as part of a collaborative team delivering technical solutions within the highest levels of the federal government.
• Manage endpoint imaging, patching, and vulnerability remediation across enterprise environments.
• Support and operate enterprise endpoint management tools and platforms.
• Resolve Tier 3 endpoint issues in support of a service desk and mission operations.
• Maintain secure, compliant Windows and macOS client environments.
• Participate in Agile execution and continuous improvement activities.
• Communicate technical issues, solutions, and risks with stakeholders.
• Build and maintain customer trust through technical expertise and reliability.
• Apply sound engineering judgment to deliver solutions aligned to customer needs.

Experience Requirements:

• Active Top Secret clearance with current or previously held SCI access.
• Required certifications: Microsoft MD-102 and Security+.
• DoD 8140 certification aligned to the 451 System Administrator work role such as Security+, Cloud+, SSCP, CASP+, or CISSP.
• 5+ years of IT experience focused on endpoint and client device management across Windows 11, macOS Sequoia and Tahoe, and Apple iOS.
• Hands-on experience with OS imaging, patch management, performance troubleshooting, and vulnerability remediation in enterprise environments.
• Experience managing full lifecycle of endpoint devices including provisioning, configuration, maintenance, and decommissioning.
• Operational Tier 3 endpoint support experience with advanced troubleshooting and issue resolution.
• Administration experience with endpoint management platforms such as Microsoft Endpoint Configuration Manager, Microsoft Intune, Jamf, Tanium, or BigFix.
• Ability to contribute immediately in a mission-critical operational environment.

Education Requirements:

• Bachelor's or Associate's degree in an IT-related field preferred.
• Microsoft MD-102 certification.
• CompTIA Security+ certification.
• DoD 8140-aligned certification such as Security+, Cloud+, SSCP, CASP+, or CISSP.