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ManTech

Government cybersecurity, analytics, and IT services

Lead Systems Engineer

System AdministrationConfirmed live in the last 24 hours
Full-timeChantilly, VA, USA$128k - $214.4k

About the Job

Requirements

  • A bachelor's degree and at least 9 years of IT or related experience.
  • Demonstrated leadership experience, including supervision of staff and accountability for team deliverables.
  • A DoD 8570 IAT Level III/8140 expert-level certification, such as SecurityX, CASP+, or CISSP.
  • A DoD 8570 computing environment certification within 6 months of hire, such as AZ-802, VCP, or equivalent.
  • Experience with Microsoft Windows Server 2016, 2019, 2022, or 2025; Microsoft Windows 10; administering Microsoft Exchange, Active Directory, workstation and server hardware, and Microsoft Office 2010 or 2016; administering DNS, Group Policy, and PKI; administering vSphere or Horizon View, data backup, and antivirus software; basic networking including DHCP/TCP/IP; deploying workstation images; and thin or zero clients.
  • Knowledge of Microsoft Windows systems, HP SANs, or VMware products.
  • Ability to remain stationary 50% of the time and occasionally move about the office to access equipment or communicate with coworkers, management, and customers.

Responsibilities

  • Provide Tier III IT systems support across Microsoft Server; server-based applications including Exchange, SQL, IIS, Certificate Services, DHCP, DNS, Active Directory, and Group Policy; Microsoft Windows desktop operating systems; secure printing technologies; VMware vCenter; and Horizon View.
  • Diagnose and resolve performance, security, and technical challenges related to the supported platforms.
  • Write Standard Operating Procedures to accomplish repetitive tasks.
  • Participate in all phases of the ITIL Service Lifecycle, including submitting Change Requests.
  • Perform requirements analysis, requirements gathering, and integration for supported platforms.
  • Lead a team of experienced Systems Engineers and provide direction and guidance to less-experienced Systems Engineers.
  • Investigate and resolve operational problems with other engineering teams and technical personnel.
  • Work on project teams to engineer and package releases for integration into the customer's production IT environment.
  • Travel locally up to 10% of the time.

Desired Qualifications

  • Proficiency with Microsoft Windows systems, including DNS, Group Policy, on-premises Microsoft Exchange, and Microsoft SQL Server.
  • Working knowledge of applying security best practices from DISA or vendors.
  • Basic systems infrastructure and hardware experience.
  • Basic networking experience.
  • Experience deploying workstations and thin or zero clients.
  • Scripting experience or willingness to learn.

About the Company

ManTech

Government cybersecurity, analytics, and IT services

ManTech provides technology and services to U.S. government customers in defense, intelligence, and federal civilian agencies. It delivers cybersecurity, data analytics, enterprise IT, logistics, intelligence lifecycle support, software development, systems engineering, mission operations, security, and training through government contracts that span strategy to operations with strict security compliance. Its differentiators include a national-security focus, end-to-end capabilities, long-term high-value contracts, and emphasis on specialized talent. The company aims to help government agencies modernize and protect critical infrastructure while pursuing sustainable growth and profitability.

Company size
10,001+
Company stage
IPO
Headquarters
Herndon, VA
Founded
1968

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