Cybersecurity Firewall Expert

2 days ago


Chantilly, Virginia, United States Leidos Full time

The Leidos Digital Modernization Sector is seeking a seasoned Cybersecurity Firewall Expert to support our global enterprise networks. Our team is undertaking a comprehensive replacement of a global enterprise network, requiring design, engineering, and transition for diverse customer network needs.

This rare opportunity allows you to build and transition critical operations to a modern service provider network architecture. As a key member of our team, you will train and mentor other members, ensuring continuity of operations (COOP). Your expertise in managing Palo Alto devices will be invaluable.

We require a candidate with demonstrated knowledge of perimeter and internal firewalls, including physical and virtual contexts. Advanced experience in managing baseline configurations across numerous firewalls, evaluating rules to ensure maximum security while minimizing redundancy, is essential.

Primary Responsibilities:

  • Train and mentor team members
  • Support mission-critical COOP
  • Provide expert advice on Palo Alto device management
  • Follow up on taskers and due outs

Basic Requirements:

  • TS/SCI with Poly clearance
  • Bachelor's Degree or 8-12 years of working experience
  • Hands-on experience with Cisco / Forcepoint / Palo Alto Firewalls
  • Strong knowledge of Firewall concepts and best practices
  • Proficient understanding of the Cybersecurity Framework
  • Motivated self-starter with strong written and verbal communication skills

Preferred Qualifications:

  • Prior experience with Enterprise and tactical networks
  • Experience with DISA and DoD Networks
  • Expertise in Vendor Equipment and Networking/Cybersecurity technologies
  • Advanced Certifications such as SANS GIAC/GCIA/GCIH, CISSP or CASP

Estimated Salary: $89,700 - $162,150 annually



  • Chantilly, Virginia, United States DanSources Full time

    DanSources is hiring a talented Cybersecurity Engineer to support our government customers' network security needs. The successful candidate will design and implement cutting-edge firewall solutions and collaborate with our network engineering team.The key responsibilities of this role include developing next-generation firewall solutions, evaluating and...


  • Chantilly, Virginia, United States Leidos Full time

    We are seeking a highly skilled Senior Cybersecurity Firewall Architect to support our global enterprise networks. Our team is responsible for designing, engineering, and transitioning customer network requirements to modern service provider network architectures.Key Responsibilities:Train and mentor junior team members in firewall management and...


  • Chantilly, Virginia, United States Task Force Talent Full time

    Cybersecurity ExpertWe are seeking a seasoned Cybersecurity Expert to join our team at Task Force Talent. The ideal candidate will have an active TS/SCI FSP security clearance and extensive experience in penetration testing, system exploitation, and vulnerability analysis.Key Responsibilities:Conduct grey and black box penetration testing against desktops,...


  • Chantilly, Virginia, United States Leidos Full time

    Company OverviewAt Leidos, we are committed to delivering innovative solutions that make a difference in the world. Our Digital Modernization Sector is seeking a skilled Firewall Engineer to join our team and support our global enterprise networks.Job DescriptionWe are looking for a seasoned professional with expertise in managing standard baseline...


  • Chantilly, Virginia, United States Leidos Full time

    Job OverviewLeidos is seeking a highly skilled Firewall Engineer to support our global enterprise networks.ResponsibilitiesTrain and mentor team members in firewall management and operation.Support mission-critical Continuity of Operations (COOP) initiatives.Provide expert advice on Palo Alto device management and operation.Follow up on taskers and due...


  • Chantilly, Virginia, United States A&M Technologies, Inc. Full time

    We are seeking an Enterprise Network Protection Expert to join our team at A&M Technologies, Inc. The estimated salary for this role is $140,000 - $200,000 per year.The successful candidate will be responsible for designing and implementing secure network architectures, developing next-generation firewall solutions, and migrating traffic from legacy...


  • Chantilly, Virginia, United States Ampcus Full time

    Key ResponsibilitiesProvide technical support to clients deploying our security integrationsPartner closely with client personnel to guide and suggest integrations to better serve their successConfigure, implement, and maintain Security Operating PlatformOptimize and migrate policies and objects from the existing environment to our Next-Gen FirewallAs a...


  • Chantilly, Virginia, United States MAXISIQ, Inc. Full time

    About the PositionMAXISIQ, Inc. is seeking a highly skilled Cybersecurity Expert to join their dynamic team. As a key member of the organization, you will play a vital role in designing and implementing secure network infrastructure for our Sponsor's program.

  • Cybersecurity Expert

    2 weeks ago


    Chantilly, Virginia, United States Leidos Holding Full time

    About the Role: Leidos is seeking a highly skilled Cybersecurity Expert to join our dynamic team of network engineers. The successful candidate will be responsible for providing ongoing operations, maintenance, optimization, and implementation of mission network infrastructure.


  • Chantilly, Virginia, United States Parsons Corporation Full time

    About the Role:Parsons Corporation is seeking a highly skilled Cybersecurity Expert to join our team. As a Cybersecurity Expert, you will design, develop, and implement leading-edge analytical and technical methodologies to ensure a secure environment for customer organizations.Key Responsibilities:- Design and develop analytical and technical methodologies...


  • Chantilly, Virginia, United States Task Force Talent Full time

    Job Title: Cybersecurity SpecialistAbout the Role:Task Force Talent is seeking a highly skilled Cybersecurity Specialist to join our team. As a Cybersecurity Specialist, you will be responsible for conducting penetration testing and system exploitation against desktops, servers, applications, operating systems, and security systems to gain root and...


  • Chantilly, Virginia, United States VTG Defense Full time

    OverviewVTG Defense is seeking an experienced Cybersecurity Protection Specialist to ensure the security and integrity of our information systems and networks.Key Responsibilities:Analyze security events and threats using data from various cyber defense tools, including IDS alerts, firewalls, and network traffic logs.Develop and implement cybersecurity...


  • Chantilly, Virginia, United States Jacobs Full time

    Job SummaryJacobs is seeking a highly skilled Cloud Security Expert to join our team. As a key member of our cybersecurity team, you will be responsible for ensuring the security and integrity of our cloud-based systems and data. Your primary focus will be on achieving ATOs for Palantir software across multiple government customers with minimal oversight....


  • Chantilly, Virginia, United States Leidos Full time

    Job Description:Train and mentor other team membersSupport mission-critical Continuity of Operations (COOP)Provide expert advice and direction regarding the management and operation of all Palo Alto devicesFollow up on all taskers and due outsRequirements:Demonstrated knowledge of Implementation of Perimeter and Internal FirewallsAdvanced experience in...


  • Chantilly, Virginia, United States Information Management Group Full time

    Are you looking for a challenging role that combines technical expertise with business acumen? As a Tier III Network Security Expert at Information Management Group, you will be responsible for leading a team of cybersecurity professionals in designing and implementing next-generation firewall solutions for our government customers' global enterprise...


  • Chantilly, Virginia, United States Cyrten Full time

    About the RoleWe are seeking a highly skilled Cybersecurity Solutions Expert to join our team at Cyrten in Chantilly, VA.This is a Full-Time/Direct-Hire position with 100% onsite work and requires an active TS/SCI full-scope polygraph clearance.


  • Chantilly, Virginia, United States ManTech Full time

    Job DescriptionWe are seeking a highly motivated and experienced Cybersecurity Expert to join our team in the Chantilly, VA area. As an Information Systems Security Specialist, you will provide unparalleled support to our customer by monitoring, testing, and troubleshooting hardware and software IA problems.Key Responsibilities:Provide IT security...


  • Chantilly, Virginia, United States REDLattice Full time

    About REDLatticeREDLattice is a leading cybersecurity company that redefines the rules of the cyber game. Our mission goes beyond protecting critical infrastructure – we're pushing the boundaries of cyber strategies to secure the digital frontier.We're a team of innovators and experts who stay ahead of the curve, identifying and neutralizing threats before...


  • Chantilly, Virginia, United States Leidos Full time

    The Leidos Digital Modernization Sector seeks a seasoned Cybersecurity Infrastructure Engineer to safeguard enterprise-level infrastructure across multiple classifications. This role demands expertise in boundary technologies and the ability to work with various vendors.Key responsibilities include:Maintaining security and networking of enterprise boundary...


  • Chantilly, Virginia, United States Hoplite Solutions LLC Full time

    Job SummaryHoplite Solutions LLC is seeking a highly skilled Cybersecurity Expert to join our team and contribute to the development, deployment, and maintenance of secure network systems. This individual will play a key role in automating cybersecurity operations, simulating adversary behavior, and enhancing defensive postures.About the RoleThe ideal...