Enterprise Network Security Architect

MANTECH seeks a motivated, career and customer-oriented Enterprise Network Security Architect to join our team in Doral, FL.

Responsibilities include but are not limited to:

• Designing, defining, and evaluating secure enterprise network architectures, perimeter defense systems, and zero-trust framework baselines.
• Evaluating operational requirements and translating complex mission needs into technical network security architecture blueprints.
• Collaborating with cross-functional technical teams, cybersecurity leaders, and network engineers to guide secure system design and deployment.
• Assessing emerging network security technologies, cloud security tools, and legacy network systems to recommend modernization pathways.
• Establishing engineering standards, network security baselines, and architectural governance frameworks across enterprise environments.
• Maintaining system baselines, configuration management records, and complex technical network security diagrams.
• Recommending and implementing continuous process improvements to enhance enterprise network resilience, interoperability, and security posture.

Minimum Qualifications:

• Bachelor’s degree in Systems Engineering, Computer Science, Information Technology, or a related field with 7+ years of experience in network security architecture.

+ OR a master’s degree and 5+ or more years of relevant experience

+ OR a PhD and 3+ 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 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.

Preferred Qualifications:

• Relevant professional certifications such as Certified Information Systems Security Professional (CISSP), Information Systems Security Architecture Professional (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 (ACAS).
• 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.