> Markdown version of [/jobs/ext/1364537-information-systems-security-engineer-isse](https://www.wearedevelopers.com/jobs/ext/1364537-information-systems-security-engineer-isse). 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 Systems Security Engineer (ISSE) - **Company:** 3 Reasons Consulting - **Location:** Philadelphia, PA, United States - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Cyber Security, Information Systems, Fortify (Software), Wide Area Networks, Webinspect, Information Technology, Nessus, Operating System Security, Vulnerability Analysis - **Published:** July 21, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9045068/information-systems-security-engineer-isse ## About the Role Bachelor's degree in Computer Science, Information Technology, or a related field 3+ years of experience with: Vulnerability testing tools (e.g., Nessus, WebInspect, Fortify, ACAS) Security systems engineering for diverse environments (standalone and LAN/WAN) Operating systems security (aligned with NIST, DISA STIGs, USCYBERCOM) Implementing RMF processes and NIST 800-53 controls Required Certification(s): DoD 8570 IAT Level 2 certification (one or more of the following) ## Description 3 Reasons Consulting is seeking candidates with 4+ years of cybersecurity experience to join our team as an Information Systems Security Engineer. This role supports a Navy customer by providing system security engineering services to ensure the secure, reliable, and uninterrupted availability of developed and deployed systems. The ISSE will ensure core security engineering principles and hardening practices are implemented across assigned programs and architectures. If you're ready to take on a critical role in cybersecurity with an organization that values innovation and integrity, we encourage you to apply. Services to be performed include, but are not limited to: Serve as ISSE for multiple information systems Act as a Subject Matter Expert (SME) in technologies and RMF activities Conduct comprehensive risk and vulnerability assessments Lead and participate in status meetings and cybersecurity strategy sessions Evaluate and apply emerging cybersecurity/RMF (Risk Management Framework) policies Maintain current knowledge of evolving security and risk standards and ensure compliance Assess systems against NIST 800-53, DoD, and Navy requirements including DISA STIGs/SRGs Produce compliance documentation and evidence Analyze vulnerability scan data and assist with remediation efforts Develop and maintain RMF documentation (Security Plans, POA&Ms, Risk Assessments, etc.) Coordinate creation of authorization boundary and architecture diagrams ## Related Videos - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Thinking Differently - How to Make Money from Cyber Attacks & Cheats](https://www.wearedevelopers.com/videos/745-thinking-differently-how-to-make-money-from-cyber-attacks-cheats) - [Cyber Security: Small, and Large!](https://www.wearedevelopers.com/videos/259-cyber-security-small-and-large) - [DevSecOps culture](https://www.wearedevelopers.com/videos/783-devsecops-culture) - [Organizational Change Through The Power Of Why - DevSecOps Enablement](https://www.wearedevelopers.com/videos/478-organizational-change-through-the-power-of-why-devsecops-enablement) - [Less Is More: How Lagom and Agile Can Create Harmonious Workflows](https://www.wearedevelopers.com/videos/1993-less-is-more-how-lagom-and-agile-can-create-harmonious-workflows) ## Related Articles - [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking) - [Events like RSAC Get You CISOs. Developers Decide What Actually Gets Deployed.](https://www.wearedevelopers.com/magazine/693-events-like-rsac-get-you-cisos-developers-decide-what-actually-gets-deployed) - [Understanding and Mitigating Common Web Vulnerabilities](https://www.wearedevelopers.com/magazine/565-understanding-and-mitigating-common-web-vulnerabilities) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [What is Software Engineering?](https://www.wearedevelopers.com/magazine/289-what-is-software-engineering) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers)