> Markdown version of [/jobs/ext/1239736-information-system-security-engineer-firewall-active-secret-clearance-required](https://www.wearedevelopers.com/jobs/ext/1239736-information-system-security-engineer-firewall-active-secret-clearance-required). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Information System Security Engineer (Firewall) (Active Secret Clearance Required)

- **Company:** Department of Corrections
- **Location:** McLean, VA, United States
- **Experience:** Expert
- **Salary:** $89,637.0 - $107,950.0
- **Contract:** Temporary contract
- **Skills:** Antivirus Softwares, Applications Architecture, Complex Networks, Cyber Security, Information Security Management, Intrusion Detection and Prevention, Intrusion Detection Systems, Virtual Private Networks (VPN), Network Security, Network Access Control, Firewalls (Computer Science), Web Filtering, SC Clearance, Information Technology, Fortinet
- **Published:** July 11, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=7cb471e01ddf5e67

## About the Role

* Bachelor's degree in Computer Science, Information Technology, Cybersecurity, or a related field.
 * Minimum 10 years of experience in network and cybersecurity engineering.
 * Extensive hands-on experience with Check Point and Fortinet firewalls.
 * Check Point Certified Security Expert (CCSE) certification required.
 * Experience with enterprise security technologies including IDS/IPS, NAC, VPNs, and content filtering.
 * Strong understanding of secure network architecture and risk management.
 * Active Secret Security Clearance is required.

Preferred Skills

 * Experience supporting DoD or other federal agencies.
 * Knowledge of NIST, RMF, STIGs, and federal cybersecurity compliance frameworks.
 * Excellent troubleshooting and communication skills.

If you're an experienced firewall security engineer with enterprise experience and an active Secret Clearance, we'd like to hear from you.

## Description

* Design, implement, operate, and maintain enterprise firewall infrastructure.
 * Manage Check Point and Fortinet firewall environments.
 * Integrate and support defense-in-depth security technologies including:
 * Intrusion Detection/Prevention (IDS/IPS)
 * Network Access Control (NAC)
 * Content Filtering
 * Endpoint/Antivirus Security
 * Perform security risk assessments and recommend mitigation strategies.
 * Develop and maintain security policies, standards, and procedures.
 * Support secure network and application architectures across multiple enterprise platforms.
 * Troubleshoot and resolve complex network security issues.
 * Ensure compliance with federal cybersecurity standards and best practices.


## Related Videos

- [Lies, Damned Lies and Large Language Models](https://www.wearedevelopers.com/videos/1231-lies-damned-lies-and-large-language-models)
- [WeAreDevelopers LIVE - Back to CODE100](https://www.wearedevelopers.com/videos/1909-wearedevelopers-live-back-to-code100)
- [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers)
- [Using Agents to Curate the Content You See Online - Dan Gish](https://www.wearedevelopers.com/videos/2159-using-agents-to-curate-the-content-you-see-online-dan-gish)
- [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure)
- [Perfect Pitch: Unveiling the Mathematical Symphony Behind a Guitar Tuner](https://www.wearedevelopers.com/videos/1095-perfect-pitch-unveiling-the-mathematical-symphony-behind-a-guitar-tuner)

## Related Articles

- [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing)
- [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking)
- [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology)
- [The Overflow: Security and Privacy](https://www.wearedevelopers.com/magazine/715-the-overflow-security-and-privacy)
- [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers)
- [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know)