Enterprise Network Security Architect

MANTECH; Miami (FL); On-site; USD 140,000 - 190,000; Full time

Job summary

MANTECH seeks a motivated Enterprise Network Security Architect to join our team in Doral, FL. You will design secure enterprise network architectures, establish zero‑trust baselines, and collaborate with cross‑functional teams to translate mission needs into robust security solutions.

Requirements include 7+ years in network security architecture, DoDAF/TOGAF governance, and relevant certifications (e.g., CISSP/CCDE). A current Top Secret clearance is required to work on DoD-grade environments.

Qualifications

• 7+ years of experience in network security architecture.
• Experience designing, integrating, and deploying enterprise network security infrastructure.
• Strong background in security frameworks and architectural governance (DoDAF/TOGAF).
• Experience maintaining system baselines and architecture documentation.
• Proven ability to communicate complex technical concepts to executives.

Responsibilities

• Design secure enterprise network architectures and zero-trust baselines.
• Translate mission needs into technical network security blueprints.
• Collaborate with cross-functional teams to guide secure system design and deployment.
• Assess emerging network security technologies, cloud security tools, and legacy systems for modernization.
• Establish engineering standards, baselines, and governance across enterprise environments.
• Maintain baselines, CM records, and network topology diagrams.
• Implement continuous process improvements to enhance security posture.

Skills

Network security architecture

DoDAF/TOGAF governance

Executive-level documentation

Baseline maintenance

Cross-functional collaboration

Education

Bachelor's degree in Systems Engineering / CS / IT

Master's degree

PhD

Associate's degree

High school diploma

Tools

ACAS

Firewall technologies

Network security monitoring tools

Job description

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.