Subject Matter Expert

PeopleTec is currently seeking a Subject Matter Expert to support our Arlington, VA location.

The selected candidate will support a Department of Defense customer in the National Capital Region - providing technical expertise supporting secure enterprise information systems, infrastructure modernization, systems integration, and configuration management activities within a dynamic mission environment.

• Provide technical expertise supporting secure enterprise information systems and network environments.
• Administer, maintain, and support enterprise information technology infrastructure, including hardware, software, and network resources.
• Support system integration, modernization, and technology refresh initiatives across multiple computing environments.
• Manage system configurations and maintain configuration baselines in accordance with established configuration management processes.
• Coordinate implementation of approved system changes and document configuration updates.
• Develop and maintain technical documentation, system procedures, and standard operating procedures.
• Support systems testing, validation, and operational readiness activities.
• Monitor system performance, identify technical issues, and recommend solutions to improve system reliability and operational effectiveness.
• Coordinate with Government personnel and technical teams to gather system requirements and support implementation of new capabilities.
• Develop technical reports, briefings, diagrams, and other documentation supporting engineering and operational activities.
• Assist with cybersecurity compliance efforts, system patching, vulnerability remediation, and accreditation activities.
• Support troubleshooting of hardware, software, network, and enterprise application issues.

Required Skills/Experience:

• 8–12 years of experience supporting Department of Defense enterprise information technology environments.
• Experience administering Windows Server and/or Linux operating systems.
• Experience supporting enterprise network infrastructure and secure computing environments.
• Working knowledge of systems integration, configuration management, and enterprise architecture principles.
• Experience implementing system upgrades, patches, and configuration changes.
• Familiarity with virtualization technologies, storage systems, and enterprise networking concepts.
• Strong troubleshooting, analytical, and problem-solving skills.
• Experience developing technical documentation, procedures, and system diagrams.
• Excellent written and verbal communication skills.
• Proficiency with Microsoft Office Suite (Word, Excel, PowerPoint, Outlook, and Teams).
• An active DoD Top Secret clearance with SCI is required to perform this work. Candidates are required to have an active Top Secret clearance upon hire, and the ability to maintain this level of clearance during their employment.

• Bachelor's degree in Computer Science, Information Systems, Information Technology, Computer Engineering, Cybersecurity, or a related technical discipline or 5-10 years or relevant experience.

• Experience supporting Department of Defense headquarters or enterprise IT environments.
• Familiarity with secure classified and unclassified computing environments.
• Experience with Microsoft Windows Server, Active Directory, virtualization technologies, enterprise storage solutions, and network administration.
• Knowledge of systems configuration management and structured change control processes.
• Familiarity with DoD cybersecurity frameworks, RMF, DISA STIGs, and vulnerability management.
• Experience supporting enterprise collaboration platforms, web-based applications, and secure communications technologies.
• Industry certifications such as Security+, CISSP, Microsoft Certified, VMware Certified Professional (VCP), Red Hat Certified System Administrator (RHCSA), or equivalent are highly desirable.

• January 2027