Bachelor's degree in Computer Science, IT, Network Engineering, or related field with 7+ years of experience, or equivalent experience with lower education levels.
Proven experience with Cisco Identity Services Engine (ISE) in an enterprise setting.
Strong background in enterprise routing, switching, 802.1X authentication, and RADIUS/TACACS+ protocols.
Hands-on experience with network device configuration and patch management.
Ability to create and maintain complex IT documentation and network diagrams.
Responsibilities
Provide technical leadership and mentorship to junior IT staff and help desk technicians.
Manage and administer enterprise routers, switches, firewalls, and network infrastructure components.
Develop, implement, and enforce network security policies and guest access workflows within Cisco ISE.
Troubleshoot complex network connectivity issues and access control policy enforcement points.
Conduct routine system maintenance, vulnerability patching, and firmware updates for network devices.
Collaborate with cross-functional teams to maintain network uptime and security compliance.
Maintain accurate technical documentation and operational inventories.
Benefits
Flexible Panama Schedule with three 12-hour shifts followed by three days off.
Opportunity to work in a dynamic environment with cross-functional teams.
Potential for professional development and mentorship opportunities.
Engagement in mission-critical operations supporting U.S. Military and DoD environments.
Full Job Description
Description & Requirements
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.
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.
