Lead Network Engineer, Centrix

ManTech; Florida; On-site; USD 120,000 - 180,000; Full time

Job summary

MANTECH seeks a motivated Lead Network Engineer, Centrix, to join our team in Doral, FL. You will provide technical leadership, design and maintain CENTRIXS network infrastructure, and oversee cross-domain coalition networks with a focus on security and performance.

Requirements include a bachelor’s in a related field with 7+ years of experience or equivalent combinations, strong protocols knowledge (BGP/OSPF/EIGRP), and a current top-secret clearance.

Qualifications

• Bachelor’s degree in Network Engineering, CS, IT, or related field with 7+ years of enterprise network experience.
• Or a master’s degree with 5+ years of relevant experience.
• Or an associate’s degree with 9+ years of experience.
• Or a HS diploma with 11+ years of experience.

Responsibilities

• Provide technical leadership and mentorship to junior IT staff and help desk technicians.
• Design, deploy, configure, and maintain enterprise network infrastructure supporting CENTRIXS CFS/C capabilities.
• Manage enterprise routers, switches, firewalls, network crypto devices, and cross-domain coalition architectures.
• Troubleshoot complex routing, switching, coalition data flows, and hardware connectivity issues.
• Collaborate with cross-functional teams, coalition partners, and leadership for secure multinational interoperability.
• Conduct routine maintenance, firmware upgrades, and vulnerability patching.
• Maintain baselines and documentation across CENTRIXS network nodes.
• Recommend and implement process improvements to enhance network performance and security.

Skills

CENTRIXS networking

Routing protocols (BGP/OSPF/EIGRP)

Network security

Leadership

DoD/Coalition networks

Education

Bachelor’s degree in Network Engineering/related field

Master’s degree

CCNA/CCNP certification or equivalent

Tools

Cisco IOS

ACAS vulnerability tools

CENTRIXS configuration tools

Job description

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.

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 [e-mail] and provide your name and contact information.