Security Engineer

ManTech; Florida; On-site; USD 110,000 - 150,000; Full time

Job summary

MANTECH seeks a motivated Security Engineer in Doral, FL to join a customer-focused team. Responsibilities include deploying and managing F5 BIG-IP LTM/APM/ASM, RSA SecurID MFA, and Infoblox DDI infrastructure, with a focus on secure access control, patch management, and configuration governance.

Required qualifications include a 5+ year background in network security engineering, or advanced degrees with experience, and current TS/SCI clearance.

Qualifications

• Bachelor's degree with 5+ years in network security engineering or equivalent.
• Experience configuring, administering, and troubleshooting F5 BIG-IP appliances (LTM, APM, ASM), RSA SecurID systems, and Infoblox DDI infrastructure.
• Strong background in network security engineering, SSL/TLS offloading, access management, DNS/DHCP protocol analysis, and traffic management.
• Experience maintaining system baselines, configuration management controls, and security patch deployment schedules.
• Experience creating, maintaining, and communicating complex engineering documentation and architecture diagrams.

Responsibilities

• Design, deploy, configure, and administer F5 BIG-IP LTM/APM/ASM.
• Manage RSA SecurID MFA deployment across networks.
• Administer Infoblox DNS/DHCP/IPAM infrastructure.
• Collaborate with cross-functional teams to ensure secure access control and traffic management.
• Perform patch management, security upgrades, and baseline configuration reviews.
• Maintain baselines and engineering documentation across physical and virtual networks.
• Recommend and implement process improvements for redundancy and security.

Skills

Network security engineering

SSL/TLS offloading

Access management

DNS/DHCP analysis

Traffic management

Education

Bachelor's degree in Systems Engineering, Computer Science, Information Technology, or a related field

Master's degree and 3+ years of relevant experience

Associate's degree and 7+ years of relevant experience

High school diploma and 9+ years of relevant experience

Tools

F5 BIG-IP LTM/APM/ASM

RSA SecurID

Infoblox DDI

Job description

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

Responsibilities include but are not limited to:

• Designing, deploying, configuring, and administering F5 BIG-IP Local Traffic Managers (LTM), Access Policy Managers (APM), and Application Security Managers (ASM).

• Managing, configuring, and maintaining RSA SecurID Authentication Manager infrastructure and multifactor authentication (MFA) token deployments across mission networks.

• Administering, optimizing, and troubleshooting Infoblox Grid enterprise DNS, DHCP, and IP Address Management (IPAM) core network services.

• Collaborating with cross-functional technical teams, network engineers, and system administrators to maintain secure system access control and traffic management.

• Conducting routine system patch management, security upgrades, baseline configuration management, and diagnostic troubleshooting for specialized security appliances.

• Maintaining system baselines, configuration management records, and engineering documentation across physical and virtual network environments.

• Recommending and implementing continuous engineering process improvements to enhance system redundancy, security compliance, and traffic performance.

Minimum Qualifications:

• Bachelor's degree in Systems Engineering, Computer Science, Information Technology, or a related field with 5+ years of experience in network security engineering.

• OR a master's degree and 3+ or more years of relevant experience

• OR an associate's degree and 7+ or more years of relevant experience

• OR a high school diploma and 9+ or more years of relevant experience

• Proven experience configuring, administering, and troubleshooting F5 BIG-IP appliances (LTM, APM, ASM), RSA SecurID systems, and Infoblox DDI infrastructure.

• Strong background in network security engineering, SSL/TLS offloading, access management, DNS/DHCP protocol analysis, and traffic management.

• Experience maintaining system baselines, configuration management controls, and security patch deployment schedules.

• Experience creating, maintaining, and communicating complex technical engineering documentation and architecture diagrams.

Preferred Qualifications:

• Relevant professional certifications such as F5 Certified Technology Specialist (F5-CTS), Infoblox Core Certified Administrator (ICCA), RSA Certified Administrator, or CompTIA Security+.

• Prior experience supporting U.S. Military Command operations, Combatant Command environments, or Department of Defense enterprise technical environments.

• Familiarity with DoD STIG compliance, automated vulnerability management (ACAS), and secure baseline auditing procedures.

• Demonstrated ability to collaborate effectively across multi-disciplinary engineering teams in fast-paced operational environments.

Clearance Requirements:

• Must hold a current/active TS/SCI 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.

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 [e-mail] and provide your name and contact information.