Systems Administrator 3

Amentum•Hanover, MD

4d•Onsite

About The Position

Provides senior technical leadership for contractor system administration operations supporting Government-owned IT systems used for training delivery across multiple environments and security domains. Establishes and maintains contractor operating procedures, administration baselines, and repeatable maintenance practice consistent with Government direction; leads complex incident response and restoration; plans and coordinates maintenance events and upgrades; mentors administrators supporting servers, virtualization platforms, storage/backup, and supporting services. Ensures documentation, evidence, and operational records are complete and audit-ready to support compliance and continuity objectives. Provides capacity planning inputs and recommendations to improve reliability, performance, and operational resilience.

Requirements

Active TS/SCI with Poly
Sec+ or equivalent, DoD 8570 IAT Level II Certification is required.
Directly related experience must be predominantly hands-on system administration/operations and include advanced troubleshooting and restoration of Windows and UNIX/Linux systems; administration of virtualization platforms and training lab environments, backup/restore execution and validation; patch/upgrade implementation; development/maintenance of runbooks and technical procedures; and documentation standards.

Nice To Haves

Senior-level industry certifications (e.g., RHCE, VMware VCP, advanced Microsoft certifications, ITIL) are desired and may be used to demonstrate applicable expertise.

Responsibilities

Perform advance system administration for Windows and UNIX/Linux systems supporting training delivery, including configuration, performance tuning, troubleshooting, and restoration actions for complex issues.
Leader technical troubleshooting and restoration for complex incidents affecting system services (OS, virtualization, storage/backup dependencies), coordinating with peer technical teams as needed and documenting resolution details and technical evidence.
Administer and optimize virtualization environments supporting training labs, including resource configuration, template management, snapshot governance, and repeatable reset-to-known-good workflows (where tooling supports).
Own and maintain system administration runbooks, SOPs, checklists, and technical procedures in editable, version-controlled formats; ensure documentation reflects the current operational baseline and lessons learned from incidents/maintenance.
Execute and validate authorized maintenance activities (patching, upgrades, configuration changes) by developing technical implementation steps, performing pre/post validation, and capturing required evidence artifacts aligned to establishe3d change processes.
Lead backup/restore operations support, including restore execution when authorized, restoration verification, and periodic restoration test execution/documentation as directed.
Provide technical mentoring and on-the-job guidance to junior system administrators focused on tooling, procedures, troubleshooting methods, and documentation/evidence quality.
Maintain and validate system inventories and operational records (as assigned) such as platform versions, configuration baselines, and service dependency documentation to support continuity and audio readiness.
Identify recurring technical issues and recommend actionable technical improvements (automation opportunities, configuration standardization, reliability enhancements) to contractor technical leadership for consideration.