Enterprise Network Security Architect

MANTECH • Doral, FL

2d • Onsite

About The Position

MANTECH is seeking a motivated, customer-oriented Enterprise Network Security Architect to join its team in Doral, Florida. The role focuses on designing and evaluating secure enterprise network architectures, perimeter defenses, and zero-trust baselines; translating mission needs into technical architecture; and guiding secure system design and deployment. The architect assesses emerging and legacy technologies, establishes engineering standards and governance, maintains baselines and technical documentation, and improves enterprise network resilience and security posture.

Requirements

• Bachelor’s degree in Systems Engineering, Computer Science, Information Technology, or a related field and at least 7 years of network security architecture experience; alternatively, a master’s degree and at least 5 years, a PhD and at least 3 years, an associate’s degree and at least 9 years, or a high school diploma and at least 11 years of relevant experience.
• Proven experience designing, integrating, and deploying complex enterprise network security infrastructure, firewalls, and boundary protection architectures.
• Strong background in network security frameworks, architectural governance (DoDAF/TOGAF), and secure network protocol design.
• Experience maintaining system baselines, configuration management controls, and technical architecture documentation.
• Experience creating, maintaining, and communicating complex technical documentation and executive-level network topology diagrams.
• Must hold a current, active Top Secret security clearance.
• Must be able to remain stationary for 50% of the time, occasionally move about the office to access equipment or files, and communicate and exchange accurate information with coworkers, management, and customers, including through presentations.

Nice To Haves

• Professional certifications such as CISSP, CISSP-ISSAP, or Cisco Certified Design Expert (CCDE).
• Prior experience supporting U.S. Military Command operations, Combatant Command environments, or Department of Defense enterprise technical environments.
• Familiarity with DoD STIG implementation, zero-trust network principles, and automated vulnerability management platforms such as ACAS.
• Ability to collaborate effectively across multidisciplinary engineering teams in fast-paced operational environments.

Responsibilities

• Design, define, and evaluate secure enterprise network architectures, perimeter defense systems, and zero-trust framework baselines.
• Evaluate operational requirements and translate mission needs into technical network security architecture blueprints.
• Collaborate with technical teams, cybersecurity leaders, and network engineers to guide secure system design and deployment.
• Assess emerging network security technologies, cloud security tools, and legacy network systems and recommend modernization pathways.
• Establish engineering standards, network security baselines, and architectural governance frameworks across enterprise environments.
• Maintain system baselines, configuration management records, and complex technical network security diagrams.
• Recommend and implement process improvements to enhance enterprise network resilience, interoperability, and security posture.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior