Lead Network Administrator

MANTECH; Miami (FL); In loco; USD 110.000 - 150.000; Tempo pieno

Vantaggi offerti da questo lavoro

Top Secret clearance

TS/SCI eligibility

Descrizione del lavoro

MANTECH in Doral, FL seeks a Lead Network Administrator to lead network engineering efforts on mission networks. The role follows a Panama Schedule—three 12-hour shifts and three days off, rotating days and nights every 90 days. Must be willing to work days, nights, weekends and holidays.

The position requires strong leadership, enterprise routing/switching experience, and expertise with Cisco ISE, NAC, and 802.1X. A current Top Secret clearance with TS/SCI eligibility is required.

Competenze

• Bachelor’s degree with 7+ years in network administration or Master’s with 5+ years and related experience.
• Experience configuring, administering, and troubleshooting Cisco Identity Services Engine (ISE) in an enterprise environment.
• Hands-on experience with network device configuration and baseline configuration controls.

Mansioni

• Provide technical leadership and mentorship to junior IT staff and help desk technicians.
• Manage and administer enterprise routers, switches, firewalls, and network infrastructure across mission networks.
• Develop and enforce network security policies, profiling rules, and guest access workflows within Cisco ISE.
• Troubleshoot complex network connectivity issues, authentication failures, and NAC policy enforcement points.
• Conduct routine system maintenance, patching, firmware updates, and baseline config management.
• Collaborate with cross-functional teams to maintain network uptime and security compliance.
• Maintain accurate technical documentation and network diagrams.

Conoscenze

Network administration

Technical leadership

Security policies

Documentation

Formazione

Bachelor’s degree in CS/IT/Network Engineering

Master’s degree in related field

Associate’s degree + 9+ years experience

High school diploma + 11+ years experience

Strumenti

Cisco ISE

Enterprise routers/switches

Descrizione del lavoro

MANTECH seeks a motivated, career and customer-oriented Lead Network Administrator to join our team in Doral, FL.

This role follows a Panama Schedule. A Panama Schedule is three, 12-hour shifts and then three days off, repeating. This position rotates between night shifts and day shifts every 90 days. Individuals must be willing to work days, nights, weekends and holidays.

Responsibilities Include But Are Not Limited To

• Provide technical leadership and mentorship to junior IT staff and help desk technicians, establishing best practices for daily operations.
• Managing and administering enterprise routers, switches, firewalls, and network infrastructure components across mission networks.
• Developing, implementing, and enforcing network security policies, profiling rules, and guest access workflows within Cisco ISE.
• Troubleshooting complex network connectivity issues, authentication failures, and access control policy enforcement points.
• Conducting routine system maintenance, vulnerability patching, firmware updates, and baseline configuration management for network devices.
• Collaborating with cross-functional engineering teams, cybersecurity staff, and site leadership to maintain optimal network uptime and security compliance.
• Maintaining accurate technical documentation, network diagrams, baseline configurations, and operational inventories.

Minimum Qualifications

• Bachelor’s degree in Computer Science, Information Technology, Network Engineering, or a related field with 7+ years of experience in network administration.
  • OR a master’s degree and 5+ or more years of relevant experience
  • OR an associate’s degree and 9+ or more years of relevant experience
  • OR a high school diploma and 11+ or more years of relevant experience
• Proven experience configuring, administering, and troubleshooting Cisco Identity Services Engine (ISE) in an enterprise environment. Strong background in enterprise routing, switching, 802.1X authentication, RADIUS/TACACS+ protocols, and network access control (NAC).
• Hands-on experience with network device configuration, patch management, and baseline configuration controls. Experience creating, maintaining, and communicating complex information technology documentation and network diagrams.

Preferred Qualifications

• Relevant professional certifications such as Cisco Certified Network Associate (CCNA), Cisco Certified Network Professional (CCNP Security/Enterprise), or Cisco ISE Specialist certification.
• Prior experience supporting U.S. Military Command operations or Department of Defense enterprise network environments.
• Familiarity with DoD STIG compliance, network vulnerability scanning, and secure baseline auditing procedures.
• Demonstrated ability to collaborate effectively across multi-disciplinary engineering teams in dynamic operational settings.

Clearance Requirements

• Must hold a current/active top secret security clearance.
• Must be eligible to obtain and maintain a TS/SCI clearance

Physical Requirements

• Must be able to remain in a stationary position 50%.
• Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.
• Frequently communicates with co-workers, management, and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.