Senior System Administrator - HCI - Military veterans preferred

ManTech (


  full-time   employee

United States

Secure our Nation, Ignite your Future


Job Description

Position Description:

The Senior Systems Administrator II – Hyper-Converged Infrastructure (HCI) supports the Information Technology (IT) Operations and Maintenance (O&M) Infrastructure team to provide enterprise-level, high-performance, highly available Hosting and Service Provider services in direct support of the customer’s business and mission needs. Specifically, the Senior Systems Administrator will be responsible for a variety of engineering and operational related assignments associated with all deployed virtualization, storage, and data protection related systems, applications, and service technologies on multiple sets of enterprise-level IT systems in support of the customer’s data center and remote site environments.

The Senior Systems Administrator supports all virtualization-based O&M tasking of deployed operational Infrastructure solutions backed by Citrix, Microsoft, NetApp, Nutanix, Veeam, and VMware. The Senior Systems Administrator also supports all storage-based O&M tasking of deployed operational storage solutions backed by Microsoft, NetApp, Nutanix, and VMware. When storage issues, incidents, and/or problems arise, the Senior Systems Administrator provides direct troubleshooting and problem resolution support, to include Root Cause Analysis (RCA), working with both internal organization and vendor subject matter experts (SMEs).

The Senior Systems Administrator also produces and maintains documentation of the Infrastructure team’s systems, sub-systems, and components in the customer’s IT Hosting portfolio, including as-built documentation, drawings, capacity/performance plans, and all other area of server system life-cycle planning.

Working alongside the Senior Systems Engineer – HCI and the customer’s IT Architecture and Engineering (A&E) team, the Senior Systems Administrator supports the exploration, investigation, research, analysis, and assessment of new virtualization, storage, and data protection technologies, methods, and/or approaches to modernize and improve upon existing Infrastructure solutions.

Infrequent travel may be required to support the customer’s IT enterprise, specifically Infrastructure related systems, at data centers or remote sites away from their primary location, but all routine operations are fully performed remotely. During normal conditions, travel is infrequent and should not exceed 15% annually.

Position Qualifications:

  • Shall have 5 or more years of proven hands-on experience implementing, operating and maintaining globally dispersed enterprise-level virtualization systems, backed by Microsoft, Nutanix and/or VMware, providing virtualization capabilities and service offerings such as Guest desktop and server virtualization to an IT enterprise.
  • Shall have 5 or more years of experience implementing, operating, and maintaining solutions in secure processing environments which must adhere to U.S. Government Information Assurance and Security standards such as the Defense Information Systems Agency (DISA) Security Technical Implementation Guides (STIGs).
  • Shall have 3 or more years of proven hands-on experience implementing, operating, and maintaining globally dispersed enterprise-level storage solutions, backed by Microsoft, NetApp, and/or Nutanix, providing enterprise storage services including Block (iSCSI) and File (CIFS, NFS) level storage and data protection (disaster recovery, migration, replication, snapshots, etc.) to a variety of end-point consumers (desktops, servers, hypervisors, etc.)
  • Demonstrated experience implementing, operating, and maintaining HCI solutions to provide virtualization, storage, data protection, and networking services and their capabilities to offer scalable converged compute and storage for enterprise-level consumers. Ideally this HCI experience would be based on the Nutanix ECP.
  • Demonstrated experience monitoring and assessing virtualization and storage infrastructure systems and solutions proactively for performance degradation, capacity and sizing issues, and tuning and optimization opportunities.
  • Demonstrated experience leveraging vendor provided best practices, systems, applications, and services to regularly patch and upgrade deployed infrastructure virtualization and storage solutions.
  • Bachelor’s degree from an Accredited University.
  • Shall possess GIAC Security Essentials (GSEC) or Security+ Continuing Education (CE) or Systems Security Certified Practitioner (SSCP) to meet the minimum credential requirements for Cyber IT/Cybersecurity Workforce (CSWF) as outlined in SECNAV M-5239.2.

For all positions requiring access to technology/software source code that is subject to export control laws, employment with the company is contingent on either verifying U.S.-person status or obtaining any necessary license. The applicant will be required to answer certain questions for export control purposes, and that information will be reviewed by compliance personnel to ensure compliance with federal law. ManTech may choose not to apply for a license for such individuals whose access to export-controlled technology or software source code may require authorization and may decline to proceed with an applicant on that basis alone.

ManTech International Corporation, as well as its subsidiaries proactively fulfills its role as an equal opportunity employer. We do not discriminate against any employee or applicant for employment because of race, color, sex, religion, age, sexual orientation, gender identity and expression, national origin, marital status, physical or mental disability, status as a Disabled Veteran, Recently Separated Veteran, Active Duty Wartime or Campaign Badge Veteran, Armed Forces Services Medal, or any other characteristic protected by law.

If you require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please contact ManTech's Corporate EEO Department at (703) 218-6000. ManTech is an affirmative action/equal opportunity employer - minorities, females, disabled and protected veterans are urged to apply. ManTech's utilization of any external recruitment or job placement agency is predicated upon its full compliance with our equal opportunity/affirmative action policies. ManTech does not accept resumes from unsolicited recruiting firms. We pay no fees for unsolicited services.

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