Lead Network Engineer

General Information

Requisition # R61869 Locations USA-FL-Doral Posting Date 07/21/2025 Security Clearance Required Secret Remote Type Onsite Time Type Full time

Description & Requirements

Shape the future of defense with MANTECH! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we’ve been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities in Cybersecurity, IT, Data Analytics and more. Propel your career forward and be part of something extraordinary. Your journey starts now—protect and innovate with MANTECH!

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

Responsibilities include but are not limited to:

• Serves as the technical authority and subject matter expert for network engineering, possessing deep knowledge and extensive experience across a broad range of networking technologies, security practices, and industry standards
• Lead the development and implementation of enterprise-wide network strategies, architectures, and roadmaps, ensuring alignment with business objectives, security requirements, and emerging technologies
• Provide expert guidance and mentorship to other Network Engineers and technical staff, fostering a culture of technical excellence, innovation, and continuous learning
• Design, implement, and manage complex network solutions, including large-scale enterprise networks, software-defined networks (SDN), cloud-based networks, and hybrid network architectures
• Conduct advanced network performance analysis, capacity planning, and security assessments to optimize network efficiency, reliability, and security posture
• Lead the evaluation, selection, and implementation of new network technologies and tools, driving innovation and ensuring the network infrastructure remains current and adaptable to evolving business needs
• Collaborate with other IT Teams, Security Teams, and business stakeholders to ensure that network solutions meet business requirements and support organizational goals

Minimum Qualifications:

• Bachelor’s degree in Computer Science, IT, or a relevant discipline.
• 12+ year of relevant experience
• DoD 8570.01-M IAT Level III certification or higher.
• Expert-level understanding of networking protocols (TCP/IP, DNS, DHCP, routing protocols), network security principles, and industry best practices.
• Extensive experience in designing, configuring, and managing complex network architectures, including routing, switching, firewalls, intrusion detection/prevention systems, and network access control.
• In-depth knowledge of virtualization of cloud networking concepts, including experience with cloud-based networking solutions (e.g., AWS VPC, Azure VNet).
• Demonstrated expertise in securing classified networks (SIPR, NIPR, JWICS) and implementing DISA STIGs, ensuring compliance with DoD security policies and regulations.
• Strong understanding of cybersecurity frameworks and standards (e.g., NIST Cybersecurity Framework, RMF), including experience with risk assessments, vulnerability management, and incident response.
• Knowledge of cloud computing security architectures (e.g., SCCA) and their implementation in hybrid cloud environments.

Preferred Qualifications:

• Master’s degree or PhD in Computer Science, IT, or a relevant discipline.
• Experience with emerging network technologies, such as software-defined networking (SDN), network function virtualization (NFV), and intent-based networking (IBN).
• Relevant industry certifications, such as Cisco CCIE, CISSP, or CCSP.
• Experience at a DoD Combatant Command (e.g., SOUTHCOM, NORTHCOM, CENTCOM, CYBERCOM, INDOPACOM, EUCOM, AFRICOM, STRATCOM, TRANSCOM, SOCOM, SPACECOM) or a component is desired.

Clearance Requirements:

• Must have an active/current Secret security clearance.

Physical Requirements:

• Must be able to be in a stationary position more than 50% of the time 
• Must be able to communicate, converse, and exchange information with peers and senior personnel 
• Constantly operates a computer and other office productivity machinery, such as a computer 
• The person in this position frequently communicates with co-workers, management, and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations 
• The person in this position needs to occasionally move about inside the office to access file cabinets, office machinery, etc

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 careers@mantech.com and provide your name and contact information.