Senior Systems Administrator II - Military veterans preferred

ManTech (


  full-time   employee

United States

Where applicable, confirmation that you meet customer requirements for facility access which may include proof of vaccination and/or attestation and testing, unless an accommodation has been approved.

Secure our Nation, Ignite your Future

Position Description:

The Systems Administrator supports the Information Technology Operations and Maintenance (O&M) Server team to provide enterprise-level, high-performance, highly available, server technology solutions (systems, applications, and services) as the customer’s Enterprise IT System, Applications, and Services catalogs.

Under the guidance of more senior Server team members, the Systems Administrator provides O&M support – installation, configuration, testing, sustainment, and upgrading as it relates to enterprise server-based solutions on the Microsoft server platforms across the IT enterprise’s information systems varying in size and complexity (LAN, MAN, WAN, etc.). Existing Microsoft server-based solutions include a variety of major technology vendors including, but not limited to, Citrix, Esri, McAfee, Microsoft, ServiceNow, and SolarWinds.

The Systems Administrator supports the initial escalation tier(s) for the Server O&M teams for service requests, incidents, and problems as escalated by the IT Enterprise Service Desk.

The Systems Administrator also contributes to the production and maintenance of documentation for the Server team’s solution system(s), sub-system(s), and component(s) deployed and in-use in the customer’s IT Solutions portfolio, including as-built documentation, capacity/performance plans, policies and procedures, workflows, run books, and all other area of server system life-cycle planning.

Position Qualifications:

  • Shall have 3 or more years of hands-on experience providing O&M support of enterprise Microsoft Windows Server operating systems (OSs) and server applications and services, such as Microsoft Active Directory (AD), Exchange, File Services, SQL Server, and SharePoint, etc. across multi-platform information systems varying in size and complexity (LAN, MAN, WAN, etc.).
  • Demonstrated experience working with Microsoft Active Directory (AD) as a centralized directory service for authentication and authorization for all IT enterprise end-users.
  • Demonstrated experience 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 Requirements Guides (SRGs) and Security Technical Implementation Guides (STIGs).
  • Demonstrated experience providing technical assistance and support to enterprise Microsoft Windows server platforms.
  • Demonstrated experience working with remote monitoring and management tools to troubleshoot, assess, and resolve issues across a globally dispersed IT enterprise.
  • Demonstrated experience working directly with customers – in face or over the phone – to elicit all necessary details to capture their IT service request, incident, or problem accurately and completely.
  • 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.

Desired Qualifications:

  • Strongly desired to be Microsoft Certified Solutions Associate (MCSA): Windows Server 2016 certified.
  • Technical certifications in other enterprise-level OSs, applications, and technologies, such as Citrix, Cisco, Microsoft, Red Hat, Splunk, and SolarWinds are also a plus.
  • Working knowledge of newer core Microsoft enterprise Server technologies to include AD, Windows 10, Windows Server 2016, Microsoft SQL Server 2016, and Microsoft IIS 10 is a plus.
  • Familiarity with Microsoft PowerShell and its local and remote diagnostic and analysis capabilities.
  • Familiarity with basic Networking troubleshooting concepts and approaches.
  • Familiarity providing O&M support for Microsoft Exchange services for end-users/consumers, such as administering mailboxes and public folders is a plus.
  • Familiarity configuring, registering, and activating Microsoft Windows Server platforms with Microsoft Volume Activation Services, both AD-based Activation (ADBA) and Key Management Services (KMS) is a plus.
  • Familiarity with and/or experience using McAfee ePolicy Orchestrator, Management for Optimized Virtual Environments (MOVE), and VirusScan Enterprise for Storage (VSES) for the purpose of satisfying IN/INFOSEC end-point anti-virus, threat, firewall, and web control is a plus.
  • Familiarity with and/or experience using the SolarWinds Orion Platform (NPM, NTA, NCM, IPAM, UDT, NTM, DPA, SAM, etc.) for the purpose of enterprise-wide centralized entity performance, configuration, capacity, and availability monitoring are a plus.
  • Familiarity with IT Networking technologies, concepts, and approaches to routing and switching, TCP/IP, traffic analysis, packet capturing and analysis, and traffic flow is a plus.

Clearance Requirement:

TS/SCI with Polygraph

Physical Requirements:

  • Must be able to remain in a stationary position 50%.
  • Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.
  • Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer.
  • Often positions self to maintain computers in the lab, including under the desks and in the server closet.
  • Frequently communicates with co-workers, management and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.
  • May be asked to move Audio/Visual or Computer equipment

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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