System Administrator III for a Full-Time position.
Job Summary: The System Administrator III provides enterprise system administration and operational support for DOI/IA and BIA systems, including Windows and Linux servers, Active Directory, virtualization, storage, backups, monitoring, patching, and security controls. The position supports systems located in BIA data centers, remote sites, and cloud environments and works in accordance with OIT configuration management, security, and operational procedures. The Task Order requires Enterprise Directory coverage Monday through Friday from 6:00 A.M. to 6:00 P.M. Mountain Time, with designated system administrators supporting 24x7x365 on-call coverage.
Key Responsibilities- Administer Microsoft Windows Server and applicable Linux server/device environments.
- Configure, operate, and troubleshoot enterprise services including Active Directory, DNS, DHCP, IIS, file services, and access controls.
- Support virtualized server infrastructure, including VMware-based environments, and enterprise flash/hybrid storage.
- Set up, configure, document, and maintain Windows servers and domain controllers.
- Perform day-to-day Active Directory administration, including user and system account management, Group Policy, role-based access controls, least-privilege access, and privileged account management.
- Establish and maintain file shares and folders with appropriate ACL permissions.
- Monitor server availability, performance, applications, system logs, and security logs using enterprise monitoring tools.
- Track vulnerabilities and perform operating system and application patching in accordance with DOI/IA requirements.
- Apply approved patches, upgrades, and enhancements through established OIT configuration and change-management procedures.
- Support system hardening and implementation of STIGs, secure operating system baselines, and application security configurations.
- Perform and monitor system backups and support restoration of files, directories, systems, and services.
- Support COOP and disaster recovery activities, including data replication, backup validation, and restoration activities.
- Assist with server, application, and infrastructure troubleshooting and escalate complex problems as appropriate.
- Support test environments used for patch testing, version changes, and troubleshooting prior to production implementation.
- Maintain system configurations, SOPs, technical documentation, change records, and other documentation required by BIA/OIT.
- Participate in operational projects involving system upgrades, migrations, new application implementations, and infrastructure modernization.
- Support OIT efforts involving virtualization, storage modernization, Zero Trust, and software-defined infrastructure.
- Provide responsive customer support and coordinate with application, network, security, database, and data center teams as required.
Required Qualifications- Progressive experience supporting enterprise Windows and/or Linux server environments.
- Working knowledge of Microsoft Active Directory, DNS, DHCP, Group Policy, and Windows Server administration.
- Experience supporting virtualized server environments such as VMware.
- Experience with enterprise monitoring, patching, backup/recovery, and troubleshooting.
- Knowledge of information security controls, system hardening, access control, and change/configuration management practices.
- Ability to troubleshoot server, operating system, application, storage, and user-access issues.
- Ability to develop and maintain technical documentation and follow established SOPs.
- Strong written and verbal communication skills and ability to work effectively with technical teams and government stakeholders.
- Ability to participate in after-hours or on-call support when assigned.
Preferred Qualifications- Experience supporting DOI, BIA, BIE, or another federal enterprise IT environment.
- Experience with VMware vSphere and enterprise storage technologies.
- Experience supporting STIG-compliant Windows/Linux environments.
- Familiarity with NIST and federal information-security requirements.
- PowerShell or other system administration scripting experience.
- Experience supporting enterprise backup, replication, COOP, and disaster recovery operations.
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