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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Information Systems Security Engineer (ISSE) - Technical - **Company:** Guidehouse Inc. - **Location:** Arlington, VA, United States - **Experience:** Expert - **Salary:** $113,000.0 - $188,000.0 - **Contract:** Permanent contract - **Skills:** Agile Methodology, Amazon Web Services, Microsoft Azure, Cloud Computing Security, Cloud Engineering, Cyber Security, Information Systems, Computer Engineering, Software Design Patterns, Identity and Access Management, Network Security, Scaled Agile Framework, Security Content Automation Protocol, Security Information and Event Management, Systems Architecture, Data Logging, Google Cloud, Integration Tests, Nessus, CIS Benchmarks, Splunk, Devsecops, Vulnerability Analysis - **Published:** May 12, 2026 - **Apply:** https://www.clearancejobs.com/jobs/8910212/senior-information-systems-security-engineer-isse-technical ## About the Role * Bachelor's degree in Cybersecurity, Information Systems, Computer Engineering, or related technical field. * Minimum of EIGHT (8) years of cybersecurity or secure systems engineering experience, including cloud architecture. * An ACTIVE and CURRENT TOP SECRET federal or DOD security clearance. * Strong understanding of security frameworks and compliance standards (e.g., NIST, RMF SP 800-53 Rev 5, DoD 8570). * Proven experience in designing and implementing enterprise security tools such as SIEM (e.g., Splunk), vulnerability scanners (e.g., Nessus), and endpoint protection platforms (e.g., Crowdstrike). * Experience with cloud security practices and technologies (AWS, Azure, GCP). * Demonstrated ability to lead cross-functional teams and complex technical projects. * Strong analytical and problem-solving skills. * Excellent communication skills with the ability to convey technical concepts to non-technical stakeholders. What Would Be Nice To Have : * Master's Degree in relevant cybersecurity or IT field * One or more of the following certifications: + Certified Information Security Manager (CISM) + Certified Authorization Professional (CAP) / Certified in Governance, Risk and Compliance (CGRC) + IAT Level II (Information Assurance Technical) + IAM Level II (Information Assurance Management) + AWS Certified Security - Specialty, or Microsoft Certified: Cybersecurity Architect Expert. * Hands-on experience with network security, cryptography, and/or identity management. * Project Management Professional (PMP) or Scaled Agile Framework (SAFe) certification for managing cybersecurity projects in Agile environments ## Description * Lead the development, engineering, and review of secure system architectures across cloud, hybrid, and on-prem environments. * Implement and validate NIST 800-53 security controls and cloud-native security services (IAM, encryption, segmentation, logging). * Lead threat modeling, risk assessments, and advanced system security engineering reviews. * Oversee secure configuration management, including STIG-based hardening, SCAP assessments, and enforcement of security baselines. * Evaluate and recommend security technologies, tools, and design patterns to support mission needs and modernization efforts. * Provide engineering leadership during RMF activities, including boundary definition, control inheritance, system architecture documentation, and ATO engineering support. * Lead or support security functional testing, integration testing, and validation of implemented controls. * Guide cross-functional development, engineering, DevSecOps, and operations teams on secure integration practices. * Mentor junior and mid-level ISSEs and act as a technical escalation point for cloud engineering issues. ## Related Videos - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [DevSecOps: Injecting Security into Mobile CI/CD Pipelines](https://www.wearedevelopers.com/videos/273-devsecops-injecting-security-into-mobile-ci-cd-pipelines) - [Our journey with Spring Boot in a microservice architecture](https://www.wearedevelopers.com/videos/511-our-journey-with-spring-boot-in-a-microservice-architecture) - [Organizational Change Through The Power Of Why - DevSecOps Enablement](https://www.wearedevelopers.com/videos/478-organizational-change-through-the-power-of-why-devsecops-enablement) - [DevSecOps culture](https://www.wearedevelopers.com/videos/783-devsecops-culture) - [DevSecOps: Security in DevOps](https://www.wearedevelopers.com/videos/36-devsecops-security-in-devops) ## Related Articles - [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology) - [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries)