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ManTech

Government cybersecurity, analytics, and IT services

Senior Systems Engineer

System AdministrationPosted on Nov 13
Full-timeChantilly, VA, USA$98k - $163.1k

About the Job

Requirements

  • A bachelor's degree and 5 or more years of experience in Information Systems or a related field; an associate's degree and 7 or more years, or a high school diploma/GED and 10 or more years of progressively responsible experience, may be substituted for a degree.
  • Hands-on experience administering and troubleshooting core IT services, including Active Directory, DNS, and SQL.
  • Experience managing enterprise data backups and supporting user-facing services such as printing and scanning.
  • An IAT Level II certification, such as Security+, SecurityX, or CISSP.
  • A current and active Top Secret clearance with SCI eligibility, and willingness to obtain a polygraph.
  • Ability to remain in a stationary position for 50% of the time and occasionally move around the office.
  • Ability to frequently communicate with coworkers, management, and customers, including delivering presentations, and exchange accurate information.

Responsibilities

  • Provide Tier II IT systems support for SQL, SharePoint, Microsoft Exchange, Certificate Services, DHCP, DNS, Active Directory, Group Policies, Microsoft Windows operating systems, and Red Hat Linux.
  • Support enterprise backup and recovery solutions to ensure data integrity and system availability.
  • Support enterprise patching and vulnerability management for Linux and Windows systems.
  • Execute structured configuration and change management processes to ensure system integrity and documentation accuracy.
  • Diagnose and resolve performance, security, and technical challenges related to the supported platforms.
  • Create, maintain, and communicate technical documentation for system configurations and standard operating procedures.
  • Investigate and resolve operational problems in conjunction with other engineering and technical personnel.
  • Apply ITIL Service Management, Configuration and Change Management processes, and enterprise service delivery best practices to deliver high-quality work products.
  • Occasionally work outside normal hours, including nights and weekends, to support system maintenance or service outages.

Desired Qualifications

  • Solid understanding of configuration management, system patching, and structured change management practices in enterprise environments.
  • Experience with Microsoft Exchange and SharePoint.
  • Experience with network documentation covering security compliance, configuration management, patching, software management, and hardware management.
  • Experience administering and supporting infrastructure within secure government or classified IT environments.
  • Relevant industry certifications, such as Windows Server Hybrid Administrator Associate, or equivalent.
  • Knowledge or experience with DevSecOps tools, processes, and concepts.
  • Knowledge or experience with Infrastructure as Code and Configuration as Code.

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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