Network Administrator

Society of Defense Financial Management; Laurel (MD); On-site; USD 120,000 - 150,000; Full time

Job summary

ManTech seeks a Network Administrator with a focus on Cisco networks to join our Laurel, MD team. You will support enterprise infrastructure for national defense operations, collaborating with IPTs and vendors to deliver secure network services across data center environments.

Responsibilities include maintaining routers and switches, configuring RADIUS, applying STIG updates, and using SolarWinds to monitor performance. A TS/SCI with polygraph is required, with IAT II within 60 days.

Qualifications

• Bachelor’s degree in a technical discipline and 12 years of Network Administrator experience.
• 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).

Responsibilities

• Maintain and upgrade network infrastructure, including routers and switches.
• Update and configure antivirus software and other tools to secure the network.
• Apply STIG updates to switches and follow 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.

Skills

Cisco networking

RADIUS configuration

Cisco Nexus design

Security protocols

Education

Bachelor’s degree in a technical discipline

Tools

SolarWinds

JIRA

Job description

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

• 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.