Tier 3 Enterprise System Administrator

About Concept Plus

Concept Plus is a mission‑focused technology solutions provider that transforms IT concepts into impactful solutions for federal agencies. Headquartered in Fairfax, VA, we bring the agility, responsiveness, and customer intimacy of a small business combined with the quality and infrastructure of a larger firm.

Recognized as an award‑winning Oracle partner, we have delivered innovative solutions across Defense, Intelligence, Civilian, Health IT, and Tribal sectors. Our highly certified experts build systems that drive efficiency, accelerate modernization, and ensure mission outcomes with certainty.

We offer competitive pay, comprehensive health, dental, and vision insurance, paid life insurance, paid time off, 11 paid holidays, performance bonuses, tuition reimbursement, unlimited training, and the opportunity to thrive in a collaborative, flexible, and innovative environment.

Concept Plus is seeking a Tier 3 Level Systems Administration Support Services role to analyze, validate, implement, maintain, and configure current services and tools (examples include Active Directory (AD), System Center Operations Manager, Quest, Dell Quest maintenance tools) to minimize negative impacts to performance and scalability; work with other organizations and MTFs to coordinate operations and support of directory services across the enterprise;

sustain and provide advanced enterprise‑level support for AD services and functions; document technical solutions as required. Utilize available tools, such as Quest Suite of Tools, to manage schema extensions, sites and services, domains and trusts, Group Policy Objects (GPO) administration, and Organizational Unit (OU) administration. In addition, the contractor is responsible for advanced management, support, and optimization of the client’s Azure cloud environment.

• Support and maintain Active Directory and Entra  to provide authentication, synchronization, user provisioning, and authorization services for AD and cloud user accounts.
• Validate data encryption services on desktops and laptops for adherence with client regulations and policies; support deployment and maintenance of new government‑approved data encryption solutions as they become available.
• Manage and monitor data encryption services to ensure systems and all supported devices are updated; create, deploy, upgrade, and install data encryption client packages, files, and policies in accordance with maintenance window policies; and provide data encryption services status reports.
• Collaborate and support future data encryption projects initiated by client.
• Using MS SCOM, monitor system uptime availability and maintain the framework for new and existing applications, servers, and services that require monitoring at the enterprise level.
• Analyze client’s current enterprise system monitoring implementation and provide a status report before and after remediation actions are engineered and executed.
• Customize enterprise monitoring rules, alerting, and reporting functions for applicable client applications and servers, and produce reports depicting the performance indicators for these applications and servers, such as “uptime” and “downtime.”
• Maintain disaster recovery capability and procedures and ensure all enterprise monitoring servers are compliant to the latest appropriate STIGs.
• Implement digital signature and encryption requirements specified in DoDI 8520.02, “Public Key Infrastructure (PKI) and Public Key (PK) Enabling.” Manage, and maintain Public Key Encryption (PKE) and Public Key Infrastructure (PKI) in a Windows environment for compliance.
• Support installation and maintenance of physical and virtual servers, enhance efficiency of critical systems, and ensure compliance with applicable client and industry guidelines and policies.
• Develop, validate, and document disaster recovery (DR) procedures for all supported device types within the on‑premises enterprise.
• Produce/update checklists, guides and/or standard operating procedures for enterprise monitoring and preventative maintenance.
• As necessary, prepare after‑action reports for submitted SITREPs, EXSUMs and UDRs.
• Ma…