1

Senior Firewall Engineer Jobs in Virginia (NOW HIRING)

Lead Firewall Engineer

Annandale, VA · On-site

$131K - $237K/yr

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 ...

Lead Firewall Engineer

Alexandria, VA · On-site

$131K - $237K/yr

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 ...

Senior ServiceNow Engineer

Reston, VA · On-site

$120 - $150/hr

As a Senior ServiceNow Developer (Engineer 4), you will lead the design, development, and optimization of enterprise‑scale ServiceNow solutions primarily leveraging ITSM and TSOM, with optional ...

New

Senior ServiceNow Engineer

Reston, VA · On-site +1

$141K - $212K/yr

As a Senior ServiceNow Developer (Engineer 4), you will lead the design, development, and optimization of enterprise-scale ServiceNow solutions primarily leveraging ITSM and TSOM, with optional ...

As a Senior ServiceNow Developer (Engineer 4), you will lead the design, development, and optimization of enterprise-scale ServiceNow solutions primarily leveraging ITSM and TSOM, with optional ...

We Are Looking For We are seeking a Senior ServiceNow Engineer to support enterprise ServiceNow implementations, integrations, and platform administration activities within secure environments.

Experience analyzing network-edge devices (routers, switches, firewalls, IoT devices) * Knowledge of hardware debugging interfaces (JTAG, SWD, UART) * Strong programming and scripting skills (Python ...

They are seeking a Senior ServiceNow Engineer to support enterprise ServiceNow implementations, integrations, and platform administration activities within secure environments. Responsibilities : • ...

Experience analyzing network-edge devices (routers, switches, firewalls, IoT devices) * Knowledge of hardware debugging interfaces (JTAG, SWD, UART) * Strong programming and scripting skills (Python ...

We Are Looking For We are seeking a Senior ServiceNow Engineer to support enterprise ServiceNow implementations, integrations, and platform administration activities within secure environments.

We Are Looking For We are seeking a Senior ServiceNow Engineer to support enterprise ServiceNow implementations, integrations, and platform administration activities within secure environments.

Showing results 21-40

Senior Firewall Engineer information

See Virginia salary details

$18

$59

$84

How much do senior firewall engineer jobs pay per hour?

As of Aug 8, 2026, the average hourly pay for senior firewall engineer in Virginia is $59.84, according to ZipRecruiter salary data. Most workers in this role earn between $55.05 and $70.05 per hour, depending on experience, location, and employer.

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

AspectSenior Firewall EngineerNetwork Security Engineer
CertificationsCCNP, CISSP, Cisco ASACISSP, CompTIA Security+, Cisco CCNA Security
Work EnvironmentFocus on firewall configuration, management, and policy enforcementBroader security infrastructure, including firewalls, IDS/IPS, VPNs
Industry UsagePrimarily in network security teams, IT departmentsAcross cybersecurity teams, network operations

The Senior Firewall Engineer specializes in designing, implementing, and managing firewall solutions, focusing on network perimeter security. In contrast, a Network Security Engineer has a broader role, covering various security tools and protocols. Both roles require similar certifications and are vital in maintaining organizational cybersecurity defenses, but their scope and focus differ.

What are the key skills and qualifications needed to thrive as a senior firewall engineer?

To thrive as a Senior Firewall Engineer, you need deep expertise in network security, firewall management, and risk assessment, typically backed by a degree in computer science or a related field and relevant certifications like CISSP or CCNP Security. Mastery of firewall platforms (such as Palo Alto, Fortinet, or Cisco ASA), intrusion detection/prevention systems, and network monitoring tools is essential. Strong problem-solving skills, attention to detail, and effective communication set top performers apart in this role. These skills ensure robust network protection, minimize vulnerabilities, and support secure business operations in complex IT environments.

What does a senior firewall engineer do?

A Senior Firewall Engineer is responsible for designing, implementing, and managing network security solutions, primarily focusing on firewalls. They assess organizational security needs, configure firewall rules, monitor network traffic for security threats, and troubleshoot issues related to firewalls. Additionally, they stay updated on the latest security threats and firewall technologies, ensuring the organization's network remains protected against unauthorized access or attacks. They often lead security projects and may mentor junior engineers within the team.

What are the typical challenges a senior firewall engineer faces when managing complex network environments?

Senior Firewall Engineers often encounter challenges such as balancing security requirements with network performance, managing policy changes across multiple devices, and staying ahead of emerging threats. They must frequently coordinate with other IT teams to ensure firewall rules do not inadvertently disrupt business-critical applications. Additionally, staying current with evolving technologies and compliance regulations is crucial, as is documenting configurations and troubleshooting issues quickly to minimize downtime.
What are popular job titles related to Senior Firewall Engineer jobs in Virginia? For Senior Firewall Engineer jobs in Virginia, the most frequently searched job titles are:
What cities in Virginia are hiring for Senior Firewall Engineer jobs? Cities in Virginia with the most Senior Firewall Engineer job openings:

Lead Firewall Engineer

Leidos

Annandale, VA • On-site

$131K - $237K/yr

Full-time

Medical, Retirement, PTO

Posted 10 days ago


Leidos rating

8.3

Company rating: 8.3 out of 10

Based on 151 frontline employees who took The Breakroom Quiz

77th of 483 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.


What Leidos employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom


Leidos logo

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

Social media