Tier I Network Operations Security Center Operations Team Lead

ManTech International Corporation
Herndon, VA

:

Secure our Nation, Ignite your Future

Become an integral part of a diverse team while working at an Industry Leading Organization, where our employees come first. At ManTech International, you'll help protect our national security while working on innovative projects that offer opportunities for advancement.

ManTech is seeking a motivated, career and customer-oriented individual to provide unparalleled support to our customer and to begin an exciting and rewarding career within ManTech. You are the right candidate for this job if you like working in a fast-paced, dynamic environment and have a passionate commitment to national security and securing the homeland. The position may be based in the DC/Maryland/Virginia area, or Chandler, AZ.

We are looking for a Tier I Network & Security Operations Team Lead with responsibility to provide daily management and oversight to a team of 40+ operators providing support for a network, cybersecurity and cloud operations on a 24x7x365 basis. The team will monitor network and cloud resources to detect and respond to service impacting events, cybersecurity incidents, and alerts.

Responsibilities include:

  • Provide direction, guidance, and oversight for Tier 1 support services that include Monitoring; Analysis; Technical troubleshooting and problem-solving; Triage and Escalation to other support entities as needed; Tracking; Reporting; and Closing service requests
  • Ensure first-line investigation and diagnosis of all incidents, logging all details
  • Manage technical services and support at the Tier I level, including WAN and LAN connectivity, routers, firewalls, and other network devices and tools; and support for remote access platforms such as VPN, Terminal Services, and Citrix
  • Manage, monitor, and track hybrid, cloud, and bare metal infrastructure supporting required SLAs to ensure customer mission support
  • Work with configuration and change management to ensure responsible change management and accurate configuration information is updated promptly
  • Inform customers of their incident's status at agreed intervals and continuously update incidents as needed
  • Notify stakeholders of high impact/priority failures using the appropriate escalation procedures
  • Lead, manage and mentor all Tier I staff
  • Provide senior level technical direction and engineering knowledge for all Tier I support activities
  • Provide, maintain, and continuously improve Tier 1 processes and SOPs
  • Collaborate and work closely with cyber security personnel and teams to respond to and resolve incidents and issues
  • Support the development of high-quality deliverables, including but not limited team daily status reports, incident investigation and case analysis, incident assessment and response, SOPs, and more
  • Lead daily operations and status briefing to senior internal and external stakeholders

Basic Qualifications:

  • A CCNA or Network+ certification
  • A DOD 8570 IAT Level II or similar certification
  • A Bachelor of Science degree
  • A minimum of (5) five years of IT technical experience in WAN routing and switching in a large, geographically dispersed enterprise environment
  • A minimum of (5) five years of experience managing a geographically diverse team (40+) of multifunctional NOC or SOC operations staff in a 24x7x365 environment

Preferred Qualifications:

  • An ITIL v4 certification

Clearance Requirements:

  • Must be a U.S. citizen
  • Must hold a TS/SCI clearance
  • Must be able to obtain DHS EOD suitability; an active EOD suitability is highly desired

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.

If you are a qualified individual with a disability or a disabled veteran, you have the right to request an accommodation if you are unable or limited in your ability to use or access

Posted 2026-06-12

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