Systems Administrator – Tier III (Infrastructure Engineering)

Computer World Services•San Antonio, TX

1d•Hybrid

About The Position

Provides Tier III engineering and advanced troubleshooting for DDSB-managed enterprise platforms, ensuring stability, resilience, and compliance. This role designs and implements complex changes, supports modernization initiatives, and leads root-cause analysis for recurring issues.

Requirements

Bachelorâs degree in Information Technology, Cybersecurity, Computer Science, Data Science, Engineering, Mathematics, or a closely related discipline or equivalent practical experience (as permitted by the contract).
Minimum 4 years of relevant experience supporting enterprise IT environments, with demonstrated work aligned to Tier 3 Level Systems Administration Support Services.
At least one: Cloud+, GICSP, SSCP, Security+, or GSEC.
Alternate/equivalent certifications may be accepted with Government approval.
Must be able to obtain and maintain Public Trust suitability and all required system access (e.g., CAC-enabled accounts) to perform duties.
This position is aligned to applicable DoD Manual 8140.03 work role 451 (NIST: OM-SA-001); contractor personnel must meet DoD 8570.01-M baseline certification requirements and transition to DoD Manual 8140.03 work role requirements, including required training, knowledge, skills, abilities, and tasks, within Government-directed timelines.

Nice To Haves

Microsoft Certified: Azure Administrator Associate or Microsoft Certified: Windows Server Hybrid Administrator Associate.

Responsibilities

Analyze, validate, implement, maintain, and configure enterprise services and tools, including Active Directory, System Center Operations Manager, Quest, related platforms, to minimize impacts to performance and scalability.
Coordinate with other organizations and MTFs to support directory services operations across the enterprise and document technical solutions as required.
Provide advanced support for Active Directory services, including schema extensions, sites, services, domains and trusts, Group Policy Objects, and Organizational Units using approved tools.
Support and maintain Active Directory and Entra ID architectures providing authentication, synchronization, provisioning, and authorization for on-premises and cloud user accounts.
Validate data encryption services on desktops and laptops for compliance with DHA and DoD policies and support deployment of approved encryption solutions.
Provide installation and maintenance of physical and virtual servers to enhance efficiency of critical systems to ensure compliance of systems with applicable baseline configurations, security requirements, and operational standards.
Manage and monitor data encryption services, including deployment, upgrades, policy enforcement, and status reporting in line with maintenance windows.
Collaborate with DHA and DoD stakeholders to support future data encryption initiatives and modernization efforts.
Monitor enterprise system uptime using Microsoft SCOM and maintain monitoring frameworks for applications, servers, and services requiring enterprise visibility.
Analyze enterprise monitoring implementations and provide status reports before and after engineered remediation actions.
Customize monitoring rules, alerting, and reporting and produce performance reports depicting uptime and downtime indicators.
Maintain disaster recovery capabilities and procedures and ensure enterprise monitoring servers comply with applicable DISA STIG requirements.
Implement and maintain Public Key Infrastructure and Public Key Encryption services in Windows environments in compliance with DoDI 8520.02 requirements.