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Senior Network Firewall Engineer Jobs in Virginia

Lead Firewall Engineer

Mount Vernon, VA · On-site

$131K - $237K/yr

Description Leidos' Digital Modernization sector is seeking a Senior Firewall Engineer to support ... Collaborate with other IT, Security and Network teams to integrate firewall solutions.

Lead Firewall Engineer

Springfield, VA · On-site

$50 - $67/hr

Overview Abile Group has an exciting and challenging opportunity for a Lead Firewall Engineer on a contract providing Network and Cybersecurity services supporting an Intelligence Community customer.

Lead Firewall Engineer

Alexandria, VA · On-site

$131K - $237K/yr

Description Leidos' Digital Modernization sector is seeking a Senior Firewall Engineer to support ... Collaborate with other IT, Security and Network teams to integrate firewall solutions.

Lead Firewall Engineer

Annandale, VA · On-site

$131K - $237K/yr

Description Leidos' Digital Modernization sector is seeking a Senior Firewall Engineer to support ... Collaborate with other IT, Security and Network teams to integrate firewall solutions.

Senior Network Engineer

Alexandria, VA · On-site

$111K - $152K/yr

The Senior Network Engineer will be responsible for ensuring the stable operation and efficient ... Implement and manage network security solutions, including firewalls, access controls, and ...

Lead Firewall Engineer

Springfield, VA · On-site

$131K - $237K/yr

Description Leidos' Digital Modernization sector is seeking a Senior Firewall Engineer to support ... Collaborate with other IT, Security and Network teams to integrate firewall solutions.

Senior Network Engineer

Richmond, VA · On-site

$120K - $135K/yr

Senior Network Engineer Our client, a Virginia state agency, is seeking a talented Senior Network ... Ensures network security with experience setting up firewalls, VPN, IPS/IDS, network analytics and ...

Senior Network Engineer

Alexandria, VA · On-site

$111K - $152K/yr

The Senior Network Engineer will be responsible for ensuring the stable operation and efficient ... Implement and manage network security solutions, including firewalls, access controls, and ...

Lead Firewall Engineer

Springfield, VA · On-site

$50.25 - $67.25/hr

Overview Abile Group has an exciting and challenging opportunity for a Lead Firewall Engineer on a contract providing Network and Cybersecurity services supporting an Intelligence Community customer.

New

Senior Network Engineer

Alexandria, VA

$111K - $152K/yr

Senior Network Engineer Location: Washington, DC (Onsite) Terms: Full-time Salary: 155,000 - 170 ... Provide Tier-III firewall and network support, including advanced troubleshooting of complex ...

Senior Network Engineer

Arlington, VA

$119K - $163K/yr

Senior Network Engineer Location: Washington, DC (Onsite) Terms: Full-time Salary: 155,000 - 170 ... Provide Tier-III firewall and network support, including advanced troubleshooting of complex ...

Showing results 41-60

Senior Network Firewall Engineer information

What does a senior network firewall engineer do?

A Senior Network Firewall Engineer is responsible for designing, implementing, managing, and maintaining network firewall systems to protect an organization’s data and IT infrastructure from unauthorized access and cyber threats. They analyze security risks, configure firewall rules, monitor network traffic, and ensure compliance with security policies. Additionally, they troubleshoot firewall issues, provide technical guidance to junior staff, and stay updated on the latest security technologies and threats.

What are the key skills and qualifications needed to thrive as a senior network firewall engineer, and why are they important?

To thrive as a Senior Network Firewall Engineer, you need deep expertise in network security, firewall configuration, and troubleshooting, usually supported by a degree in computer science or a related field and several years of experience. Proficiency with firewall platforms (such as Palo Alto, Cisco ASA, or Fortinet), network monitoring tools, and certifications like CISSP or CCNP Security are typically required. Strong analytical thinking, attention to detail, and effective communication help you excel in diagnosing issues and collaborating with cross-functional teams. These skills ensure the secure and reliable operation of enterprise networks, protecting critical data and minimizing security risks.

What are some common challenges faced by senior network firewall engineers when managing large-scale enterprise environments?

Senior Network Firewall Engineers often encounter challenges such as balancing robust security with network performance, managing complex rule sets across multiple devices, and ensuring seamless policy updates without disrupting business operations. They must also stay current with evolving cyber threats and compliance requirements, which can require frequent adjustments to firewall configurations. Effective collaboration with security operations, IT infrastructure, and compliance teams is essential to address these challenges and maintain a secure, high-performing network.

What is the difference between Senior Network Firewall Engineer vs Network Security Analyst?

AspectSenior Network Firewall EngineerNetwork Security Analyst
CertificationsCCNP, CISSP, Cisco ASA certificationsCISSP, CompTIA Security+, GIAC certifications
Work EnvironmentDesigning, implementing, managing firewalls and security infrastructureMonitoring, analyzing security threats, incident response
Employer & Industry UsageIT departments, cybersecurity firms, large enterprisesSecurity teams, government agencies, financial institutions

The Senior Network Firewall Engineer primarily focuses on configuring and maintaining firewall systems to protect network perimeters, while the Network Security Analyst monitors security events and responds to threats. Both roles require similar certifications and often work within the same industry environments, but their core responsibilities differ in scope and daily tasks.

What are the most commonly searched types of Network Firewall Engineer jobs in Virginia?

The most popular types of Network Firewall Engineer jobs in Virginia are:

What are popular job titles related to Senior Network Firewall Engineer jobs in Virginia?

For Senior Network Firewall Engineer jobs in Virginia, the most frequently searched job titles are:

What job categories do people searching Senior Network Firewall Engineer jobs in Virginia look for?

The top searched job categories for Senior Network Firewall Engineer jobs in Virginia are:

What cities in Virginia are hiring for Senior Network Firewall Engineer jobs?

Cities in Virginia with the most Senior Network Firewall Engineer job openings:

Lead Firewall Engineer

Leidos

Mount Vernon, VA • On-site

$131K - $237K/yr

Full-time

Medical, Retirement, PTO

Posted 19 days ago


Leidos rating

8.3

Company rating: 8.3 out of 10

Based on 152 frontline employees who took The Breakroom Quiz

79th of 492 rated business services


Job description

Description

Leidos' Digital Modernization sector is seeking a Senior Firewall Engineer to support the GSM-O effort. This position is located at the Pentagon and is 100% on-site. This role requires an engineer who can design, implement, and manage complex firewall solutions to ensure the security and integrity of network infrastructure. The ideal candidate has experience with firewall technologies including Cisco ASA, Juniper SRX, and Palo Alto, as well as a strong background in security networking.

Primary Responsibilities:

  • Design, Implement Manage firewall solutions using Cisco ASA/Firepower, Juniper SRX and Palo Alto.

  • Monitor firewall performance and security logs to identify and mitigate potential threats.

  • Develop and enforce network security policies and procedures.

  • Perform system audits to ensure compliance with standards and regulations.

  • Collaborate with other IT, Security and Network teams to integrate firewall solutions.

  • Troubleshoot and resolve network and firewall related issues promptly and document within ticket systems.

  • Maintain and update firewall configurations (security polices/firewall ACLs as approved by Change Management)

  • Serve as a People Leader for personnel supporting the Firewall Task Area:
    • Serve as the focal point for all firewall tasks, operations, projects, and assessments.
    • Ensure all tasks are delivered according to timelines
    • Provide written reports and oral briefings to the Government Task Lead and PMO Team
    • Conduct annual performance assessments to include periodic check ins.
    • Validate/approve time charging for both Leidos and vendor personnel.
    • Provide coaching/mentoring to personnel.
    • Develop and Execute Continual Service Improvement technical strategies to modify and enhance operational processes and impact strategic project/program goals and business results.

Required Clearance and Certifications:

  • Must have, at minimum, an active DoD Top Secret security clearance with ability to obtain TS/SCI. An active TS/SCI is preferred.
  • Must have DoD 8570 IAT II or higher certification prior to start.
  • Must have a Juniper, Cisco, or Palo Alto certification prior to start.

Required Qualifications:

  • BS degree and 12+ years of directly relevant experience. Additional military or relevant work experience may be considered lieu of a degree.
  • 3+ years of Firewall experience within the DoD environment
  • Demonstrated knowledge in planning, directing, and managing a Firewall Team in an organization similar in size to this acquisition
  • Demonstrated knowledge of Implementation of Perimeter and Internal Firewalls (both physical and virtual contexts)
  • Demonstrated advanced experience in managing standard baseline configuration across numerous firewalls
  • Demonstrated advanced experience in evaluating rules to ensure maximum security while minimizing redundancy in rules
  • Demonstrated experience with researching and fielding new and innovative firewall technology

About our Program:

Through the J6 Penetration Handling, Incident, System Health (PHISH) support services task order on the GSM-O contract, we provide IT products, services and solutions to the Pentagon and other DoD offices and agencies for them to meet mission and business requirements. Our Cybersecurity team performs cyber defensive actions in support of J6 to prevent, detect, respond and recover from adversarial activities.

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting:July 29, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:Pay Range $131,300.00 - $237,350.00

The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits.

Securing Your Data

Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com.

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.


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About Leidos

Sourced by ZipRecruiter

At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams, contribute to our communities, and operate sustainable practices. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community.

Industry

It services

Company size

10,000+ Employees

Headquarters location

Reston, VA, US

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