Lead Network Engineer - Centrix

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

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.
• Designing, deploying, configuring, and maintaining enterprise network infrastructure supporting CENTRIXS Combined Federated Server/Combined (CFS/C) capabilities.
• Managing enterprise routers, switches, firewalls, network crypto devices, and cross-domain coalition network architectures.
• Troubleshooting complex network routing, switching protocols, coalition data flows, and hardware connectivity issues.
• Collaborating with cross-functional technical teams, coalition partners, and leadership to ensure secure multinational network interoperability.
• Conducting routine network maintenance, firmware upgrades, vulnerability patching, and configuration management controls.
• Maintaining system baselines, configuration management records, and engineering documentation across CENTRIXS network nodes.
• Recommending and implementing continuous engineering process improvements to enhance coalition network performance and security compliance.

Minimum Qualifications:

• Bachelor’s degree in Network Engineering, Computer Science, Information Technology, or a related field with 7+ years of experience in enterprise network engineering.
  • 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 CENTRIXS network systems, coalition WAN/LAN environments, or cross-domain networks.
• Strong background in enterprise routing/switching protocols (BGP, OSPF, EIGRP), VPNs, firewalls, and network access control.
• Experience maintaining network baselines, baseline documentation controls, and security patch deployment schedules.
• Experience creating, maintaining, and communicating complex technical engineering documentation and coalition network topology diagrams.

Preferred Qualifications:

• Relevant professional certifications such as Cisco Certified Network Associate (CCNA), Cisco Certified Network Professional (CCNP Enterprise/Security), or CompTIA Security+.
• Prior experience supporting U.S. Military Command operations, Combatant Command environments, or multinational coalition networks.
• Familiarity with DoD STIG compliance, automated vulnerability scanning tools (ACAS), and crypto key management (HAIPE/TACLANE).
• Demonstrated ability to collaborate effectively across multi-disciplinary engineering teams in fast-paced operational environments.

Clearance Requirements:

• Must hold a current/active top secret security 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.