Skip to content

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 security background with Palo Alto firewall systems

  • A minimum of four (4) years of experience in cloud technologies such as but not limited to Azure and AWS.

  • Experience designing and implementing enterprise solutions that increase the availability and security of the enterprise.

  • Extensive experience with on premise physical infrastructure and Virtualization technologies including Hyper-V, VMWare, SAN, FCoe, NFS, SMB3

Preferred Qualifications:

  • Familiar with tools including: ServiceNow, GitHub, Jira, Confluence

  • Experience with ITIL, DevSecOps and Agile concepts

  • Experience supporting Government contracts

Clearance Requirements:

  • U.S. Citizen with the ability to obtain Public Trust and complete DHS Security Clearance prior to starting the position.

  • Current DHS EOD highly preferred

Physical Requirements:

  • Office work, typically sedentary with some movement around the office.


The projected compensation range for this position is $130,800.00-$232,100.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories.  In addition, ManTech invests in it’s employees beyond just compensation.  ManTech’s benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, Short Term and Long Term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.

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 careers@mantech.com and provide your name and contact information.