Skip to content

General information

Requisition #
R64122
Locations
USA-VT-South Burlington
Posting Date
11/04/2025
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 is seeking a motivated, career and customer-oriented Firewall Subject Matter Expert (SME) / Architect in South Burlington, VT; Camp Springs, MD; or in a location to be determined upon offer acceptance.

Responsibilities include, but are not limited to:

  • Primary role is to perform as Level 4 firewall and network engineering escalation point for network security to effectively support security processes and procedures.
  • Continually improve on the network stability working with the performance team to establish network performance metrics for alerting and remediation automations.
  • Work with other firewall and network engineer colleagues to configure and implement Next Generation Firewall and Intrusion Protection Systems.
  • Review existing configuration settings to identify potential security vulnerabilities and propose/implement setting or architectural changes to address these vulnerabilities.
  • 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 firewall engineer across large and complex network and Microsoft AD environments
  • Certifications: 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.
  • Experience with on premise physical infrastructure and virtualization technologies including Hyper-V, VMWare, SAN, NFS, SMB3 etc
  • Deep experience with networking and security methods and tools.

Preferred Qualifications:

  • Familiar with tools including: ServiceNow, GitHub, Jira, Confluence
  • Experience with ITIL, DevSecOps and Agile concepts
  • Experience supporting Government contracts

Clearance Requirements:

  • Must be a U.S. Citizen with the ability to obtain and maintain a Public Trust clearance prior to starting this position
  • Ability to obtain DHS EOD suitability prior to starting this position
  • Current DHS EOD highly preferred
     

Physical Requirements:

  • Must be able to remain in a stationary position 50%
  • Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer.


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 its 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.