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Tier 3 Network Operations & Security Center (NOSC) Analyst
Tier 3 Network Operations & Security Center (NOSC) Analyst-March 2024
Herndon
Mar 29, 2026
About Tier 3 Network Operations & Security Center (NOSC) Analyst

  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.

  Currently, ManTech is seeking a motivated, career and customer-oriented Tier 3 Network Operations & Security Center (NOSC) Analyst. There are three possible locations for this role Chandler, AZ; Stennis, MS; Washington, DC.

  Responsibilities include but are not limited to:

  Provide Tier 3 support by analyzing network traffic and various log data to determine the threat/impact against the network, recommending appropriate countermeasures, facilitating the tracking, handling, and reporting of all security events and computer incidents.

  Investigating computer and information security incidents to determine extent of compromise to information and automated information systems

  Provides computer forensic and intrusion support to high technology investigations in the form of computer evidence seizure, computer forensic analysis, data recovery, and network assessments

  Captures, protects, and retains digital forensic data and information maintaining proper legal chain of custody for legal and law enforcement activities

  Researches and maintains proficiency in tools, techniques, countermeasures, and trends in computer network vulnerabilities, data hiding and network security and encryption

  Establishes and updates standard operating processes as necessary aligning with legal, policy, and customer requirements

  Email security - Digital media forensic - Monitoring and detection - Incident Response - Vulnerability assessment and pen test - Cyber intelligence analysis

  Supports detection, containment, and eradication of advanced persistent threat (APT) activities targeting customer networks

  Process community reporting, conduct link analysis, and collaborate with other Government cyber fusion teams

  Publishes intelligence products to inform network defenders about APT activities, new detection methods, among other topics of interest

  Lead and mentor other SOC Support Staff and will communicate with executive leadership

  Responsible for working in a 24x7 Security Operation Center (SOC) environment

  Other duties as assigned or required

  Basic Qualifications:

  A DoD 8570 industry related certification (CSSP Analyst, CSSP Infrastructure Support or CSSP Incident Responder)

  A bachelor’s degree in computer science, engineering, information technology, cyber security, or related field

  A minimum of seven (7) years of relevant experience

  A minimum of four (4) years of experience in one or more of the following areas: computer network penetration testing and techniques; computer evidence seizure, computer forensic analysis, and data recovery; computer intrusion analysis and incident response, intrusion detection; computer network surveillance/monitoring; network protocols, network devices, multiple operating systems, and secure architectures.

  Preferred Qualifications:

  Any of the following certifications: Certified Ethical Hacker, Penetration Testing, GIAC Certified Forensic Examiner (GCFE), GIAC Advanced Smartphone Forensics Certification (GASF)Clearance Requirements:

  Must be a U.S. citizen

  Must hold an active Secret clearance

  Must be eligible for TS/SCI clearance

  Physical Requirements:

  Must be able to remain in a stationary position 50%

  Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer

  The person in this position needs to occasionally move about inside the office to access file cabinets, office machinery, etc.

  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 http://www.mantech.com/careers/Pages/careers.aspx as a result of your disability. To request an accommodation please click [email protected] and provide your name and contact information.

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