Security Engineer - TS/SCI Clearance (DoD Network Security)

MANTECH; Miami (FL); On-site; USD 110,000 - 140,000; Full time

Job summary

MANTECH is seeking a motivated Security Engineer to join our team in Doral, Florida. You will design, deploy, configure, and support F5 BIG-IP appliances (LTM, APM, ASM) and manage RSA SecurID MFA deployments for mission networks.

Collaborating with cross-functional teams, you will maintain Infoblox DNS/DHCP/IPAM infrastructure, perform patch management, and enhance security posture through baseline configuration and documentation. A TS/SCI clearance is preferred.

Qualifications

• 5+ years of network security engineering experience.
• Experience with F5 BIG-IP LTM/APM/ASM configurations and troubleshooting.
• Proven experience configuring RSA SecurID systems and Infoblox DDI infrastructure.
• Strong background in SSL/TLS offloading, access management, and traffic management.
• Experience maintaining baselines, configuration controls, and patch deployment schedules.
• Ability to create, maintain, and communicate complex engineering documentation and diagrams.

Responsibilities

• Design, deploy, configure, and administer F5 BIG-IP LTM, APM, and ASM.
• Manage RSA SecurID MFA infrastructure and token deployments across networks.
• Administer Infoblox DNS, DHCP, and IPAM services; monitor health and uptime.
• Collaborate with engineers and sysadmins to ensure secure access control and traffic management.
• Perform patch management, security upgrades, and baseline configuration updates.
• Maintain documentation and engineering records across physical and virtual environments.
• Recommend continuous improvements to enhance redundancy and security posture.

Skills

F5 BIG-IP

RSA SecurID

Infoblox DDI

DNS/DHCP analysis

SSL/TLS offloading

Documentation

Traffic management

Education

Bachelor's degree

Master's degree

Associate’s degree

High school diploma

Tools

F5 BIG-IP

RSA SecurID

Infoblox DDI

Job description

MANTECH is seeking a motivated Security Engineer to join our team in Doral, Florida. You will design, deploy, configure, and support F5 BIG-IP appliances (LTM, APM, ASM) and manage RSA SecurID MFA deployments for mission networks.

Collaborating with cross-functional teams, you will maintain Infoblox DNS/DHCP/IPAM infrastructure, perform patch management, and enhance security posture through baseline configuration and documentation. A TS/SCI clearance is preferred.