ManTech International

Network Engineer

ManTech International$116K — $194K *
Aerospace & Defense
11 - 15 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree and 12+ years of network engineering experience, or relevant associate's or high school education with increased experience
  • Active DoD IAT Level II baseline certification or ability to obtain it within 6 months
  • Proficient in TCP/IP networking, packet capture (Wireshark/Zeek), and SIEM platforms
  • Experience with vulnerability assessment workflows and firewall design

Responsibilities

  • Perform OT network enumeration and protection activities
  • Manage third-party cybersecurity tools including vendor coordination and acceptance testing
  • Plan and execute shipboard installations and testing
  • Produce metrics and reports while ensuring clear communication with stakeholders
  • Develop written documentation and present findings to both technical and non-technical audiences

Benefits

  • Health and Life Insurance options
  • Paid Time Off and Holiday Pay
  • Short-term and long-term Disability coverage
  • Retirement and Savings plans
  • Access to Learning and Development opportunities
  • Wellness programs and optional benefit selections
Full Job Description
MANTECH seeks a motivated, career and customer-oriented Network Engineer to join our team in Philadelphia, PA. This position is hybrid with 3 days onsite.

The Network Engineer will support Department of Defense (DoD) mission systems. This role leads the technical management of third party developed cybersecurity tools, coordinates shipboard installation and testing activities, and produces data-driven metrics that inform engineering priorities and leadership decisions.

Responsibilities include but are not limited to:
  • OT Network Enumeration & Protection including passive network discovery, asset inventory management, threat detection & monitoring, and vulnerability management
  • Third-Party tool management to include vendor coordination, tool integration, and acceptance testing
  • Shipboard Installation & Testing which includes installation planning, site surveys & commissioning, and operational validation
  • Metrics, Reporting & Stakeholder Communication requiring weekly & monthly metrics, data-driven recommendations, cross-team collaboration and documentation
  • Produce clear written reports and brief technical and non-technical stakeholders, including government leadership


Minimum Qualifications:
  • Bachelor's degree with 12+ years of experience in network engineering, or an Associate's degree with 14+ years of relevant experience, or a High School diploma with 16 years of experience
  • An active and current DoD IAT Level II baseline certification (e.g., Security+ CE), or the ability to obtain one within 6 months of hire
  • Working knowledge of TCP/IP networking, packet capture and analysis (Wireshark/Zeek), SIEM platforms, firewall and segmentation design, and common vulnerability assessment workflows


Preferred Qualifications:
  • Master's and 10+ years of experience, or PhD and 8+ years of experience highly desired
  • Project Management Professional (PMP), or Cisco Certified Network Associate (CCNA)Additional value for GICSP, GRID, CISSP, or equivalent OT/ICS-focused credentials
  • Hands-on work with industrial control systems, SCADA, or shipboard control systems; familiarity with OT protocols such as Modbus, DNP3, IEC 61850, or Ethernet/IP
  • Experience with passive OT monitoring platforms (e.g., Claroty, Dragos, Nozomi Networks, or equivalent) and integration with enterprise SIEMs
  • Experience supporting Navy shipboard, afloat, or deployed environments, including availabilities, sea trials, or underway testing
  • Familiarity with NIST SP 800-82, IEC 62443, RMF (NIST SP 800-37), and DoD cybersecurity policy
  • Proficiency in Python, PowerShell, or Bash for data processing, metrics generation, and light tool development


Clearance Requirements:
  • Must have a current and active Secret security clearance with ability to obtain a Top Secret clearance.


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.


The projected compensation range for this position is $116,400.00-$194,900.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH's benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.

About ManTech International

ManTech International Corporation is an American defense contracting firm that was founded in 1968. The company provides cybersecurity, intelligence, and defense solutions to the United States Government. ManTech has over 9,000 employees and operates in 40 countries worldwide. The company's services include software development, systems engineering, and enterprise IT solutions. ManTech has been awarded numerous contracts by the U.S. Department of Defense and other government agencies.
Learn more about ManTech International
Size
9,800 employees
Market Cap
$3.7 billion
Industry
Net Income
$120.5 million
Founded
1968
5 Year Trend
+9.8%
Revenue
$2.5 billion
NASDAQ

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