Senior Network Security Architect

General information

Requisition # R59433 Locations USA-VT-South Burlington, USA-MD-Camp Springs Posting Date 03/21/2025 Security Clearance Required Public Trust/Suitability Remote Type Hybrid Time Type Full time

Description & Requirements

Transform the future of federal services with ManTech! Join a vibrant, energetic team committed to enhancing national security and public services through innovative tech. Since 1968, we’ve partnered with Federal Civilian sectors to deliver impactful solutions. Engage in exciting projects in Digital Transformation, Cybersecurity, IT, Data Analytics and more. Ignite your career and drive change. Your journey starts now—innovate and excel with ManTech!

ManTech seeks a motivated, career and customer-oriented Senior Network Security Architect in South Burlington, VT or Camp Springs, MD.

Responsibilities include, but are not limited to:

• Use Agile engineering approach to DevSecOps and solutioning with Access Identity and Directory Services to architect, engineer, and implement network security control methods in cloud, on-premise and virtual environments to support DHS directive 4300A, NIST 800-53, and industry best practices

• Maintain network readiness and prepare to scale for the future through compliance with all federal requirements such as DHS 4300A, NIST 800-53, and other industry best practices.

• Perform as Level 4 network / firewall escalation point for network security to effectively support security processes and procedures.  Work with firewall engineers to configure and implement Next Generation Firewall and Intrusion Protection Systems.  Extend into secure network solutions, Palo Alto firewall and intrusion protection devices to scale.

• Continually improve on the network stability working with the performance team to establish network performance metrics for alerting and remediation automations.  Architect and engineer a Network Access Control (NAC) solution.

• Audit firmware versions and configuration settings for the USCIS cloud and infrastructure platforms/devices to eliminate vulnerabilities and ensure USCIS deploys and operates in accordance with vendor recommendations, industry best-practices and DHS configuration guidance.

• Review existing configuration settings to identify potential security vulnerabilities and propose/implement setting or architectural changes to address these vulnerabilities.  Evaluate current and future network designs to ensure that network security is incorporated as an integral consideration in all designs.

• Perform securing, hardening, and rule creation for new firewalls, switches, routers, and other network equipment. This includes reviewing and re-evaluating existing configuration settings and rules to verify USCIS’ security posture and eliminate unnecessary risk.

Minimum Qualifications:

• A minimum of ten (10) years of experience as an Enterprise Architect across large and complex network and Microsoft AD environments

• Certifications: CCIE, PCNSE

• Extensive securit