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Senior System Engineer with Security Clearance

MANTECHChantilly, VA🇺🇸United StatesPosted Sep 21, 2026

Quick Overview

Seniority
Mid Senior
Employment type
Employee
Work mode
Hybrid
Location
Chantilly, VA, United States
Posted
Yesterday
Active DirectoryDNSLESSMicrosoft OfficePKIVMware

Job Description

MANTECH seeks a motivated, career and customer-oriented Senior System Engineer to join our team in Chantilly, VA. Responsibilities include, but are not limited to:

  • Provide Tier III IT Systems support on a wide range of technologies, including: VMware vCenter, Horizon View, Site Recovery Manager, SolarWinds, Cisco Catalyst Center (DNAC), GEMOne, HP SANs, Certificate Services, DHCP, DNS, Active Directory, Group Policies and Microsoft Windows Operating Systems
  • Diagnosing and resolving the performance, security, and/or technical challenges related to the platforms listed above
  • Writing Standard Operating Procedures (SOPs) to accomplish repetitive tasks
  • Participating in processes throughout all phases of the ITIL Service Lifecycle, including submitting Change Requests
  • Performing requirements analysis, requirements gathering, and integration for all platforms listed above
  • Providing direction and guidance to less-experienced Systems Engineers
  • Investigating and resolving operational problems in conjunction with other engineering and technical personnel
  • Working on project teams responsible for engineering and packaging releases to integrate within the customer's production IT environment
  • Willingness to occasionally work after normal duty hours (nights and weekends) to support system maintenance or service outages
  • This role may require up to 10% travel Minimum Qualifications:
  • Master's degree with 2+ years of information technology experience, or Bachelor's degree and 5+ years of related information technology experience
  • DoD 8140 Advanced Certification required, ex., SecurityX, CASP, CISSP or obtain within 6 months of hire
  • Vendor specific certification required within 6 months of hire, ex., MCSA, VCP, or equivalent
  • Experience with Microsoft Windows 2008/2012/2016/2019 Servers; Microsoft Windows 10; administering Microsoft Exchange, Active Directory, and workstation and server hardware; administering Microsoft Office 2010/2016; administering DNS, Group Policy, and PKI; administering vSphere, Horizon View, data backup, and antivirus software; basic networking including DHCP/TCPIP
  • Knowledge of Microsoft Windows Systems, VMWare, and CISCO systems

Preferred Qualifications

  • Working knowledge of applying security best practices from DISA and/or vendors
  • Microsoft Office experience
  • Experience using a Service Desk ticketing system, such as Remedy or ServiceNow
  • ITIL Foundations certification
  • Scripting experience Clearance Requirements:
  • Must have a current and active Top Secret clearance and be open to obtaining a CI poly Physical Requirements:
  • The person in this position must be able to remain in a stationary position 50% of the time. Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations.

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