Job 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, and 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 policies/ACLs as approved by Change Management).
Required Clearance and Certifications
- Must have, at minimum, an active DoD Secret security clearance with the ability to obtain TS/SCI; an active TS/SCI is preferred.
- Must have DoD 8570 IAT II or higher certification (Security+ CE or equivalent) 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 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.
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 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. We’re not looking for perfectly polished resumes or perfect fits. We’re looking for people who break limits, ask hard questions, and don’t wait to be told what’s next. At Leidos, we’re not following the roadmap — we’re redrawing it.
Pay Range: $126,100.00 – $227,950.00
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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