Network Administrator

7 days ago

Laurel, MD, United States ManTech International Corporation Full time
Description & Requirements

Unlock the secrets of intelligence with MANTECH Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968, we’ve been solving the toughest challenges with groundbreaking tech. Explore thrilling projects in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Elevate your career and make a difference. Your adventure begins now-unleash your potential with MANTECH

ManTech seeks a motivated, career- and customer-oriented Network Administrator with a focus on Cisco Networks to join our team in Laurel, MD. You will be part of a mission-driven team delivering enterprise infrastructure capabilities to support a global workforce engaged in national defense operations. This position is part of the Enterprise Infrastructure Services (EIS) organization-responsible for MPO’s Enterprise Information Technology (EIT), the backbone platform supporting all enterprise users. You will work with customers, Integrated Product Teams (IPTs), and vendors to deliver secure and reliable network services across Data Center & Compute environments.

Responsibilities include, but are not limited to:
  • Maintain and upgrade network infrastructure, including routers and switches
  • Update and configure antivirus software and other tools to secure the network
  • Apply Security Technical Implementation Guide (STIG) updates to switches and follow Software Test and Evaluation (STE) policies
  • Design and plan Cisco NEXUS network infrastructure, including setup and ongoing maintenance
  • Configure Remote Authentication Dial-In User Service (RADIUS) for switch administration
  • Use network monitoring and management tools such as Solarwinds to oversee network performance
  • Must be willing to work a flexible schedule between 6:00am-6:00pm and may be assigned to an evening patching schedule
Minimum Qualifications:
  • Bachelor’s degree in a technical discipline from an accredited college or university and Twelve (12) years of experience as a Network Administrator supporting programs and contracts of similar scope, type, and complexity. In lieu of a Bachelor’s degree, three (3) years of additional Network Administration experience with an Associates degree may be substituted OR eight (8) years of additional experience and a High School Diploma
  • Demonstrated experience downloading software and upgrading Cisco switches and firewalls
  • Strong technical background in Cisco FirePower Firewalls
  • IAT II certification (DoD 8140 required within 60 days of starting employment. Acceptable certifications include CCNA-Security/CySA+/GICSP/GSEC/Security+ CE/CND/ or SSCP)
Preferred Qualifications:
  • Familiarity with configuring, scripting, and managing Unix, RHEL and Windows operating systems
  • Familiarity with Scanboy
  • Familiarity with JIRA ticketing system
  • Familiarity with Enclave environments
  • Familiarity with Solarwinds
  • Familiarity using LatteART and XACTA
Clearance Requirements:
  • Must have a current/active TS/SCI with Polygraph
Physical Requirements:
  • The candidate must be able to move, carry, and deliver workstations from the office to the customer’s desk
  • The person in this position must be able to remain in a stationary position 50% of the time
  • Must communicate with co-workers, management, and customers via email, phone, or virtual meetings, which may involve delivering presentations. Must be able to exchange accurate information in these situations.


The projected compensation range for this position is $125,500.00-$210,200.00. 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.

MANTECH International Corporation considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.

If you need a reasonable accommodation to apply for a position with MANTECH, please email us at careers@mantech.com and provide your name and contact information.

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