> Markdown version of [/jobs/ext/3553438-information-system-security-specialist-iii](https://www.wearedevelopers.com/jobs/ext/3553438-information-system-security-specialist-iii). 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 Specialist III - **Company:** Constellation West - **Location:** Philadelphia, PA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Command-Line Interface, Cyber Security, Information Systems, Information Security Management, Windows PowerShell, SC Clearance - **Published:** October 2, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9213025/information-system-security-specialist-iii ## About the Role Active, final Secret clearance Active IAT II certification Ability to work onsite at either NSWC-PD or a regional Contractor office Demonstrable 5 YoE in the following * Cybersecurity, Engineering, Test and Evaluation (T&E) or Authorization and Assessment (A&A) (formerly C&A) related field. * Information Assurance tools such as Defense Information Systems Agency (DISA) Enterprise Mission Assurance Support Service (eMASS), Assured Compliance Assessment Solution (ACAS). * Microsoft Windows Operating System Administration, including Windows 11, Windows 10, Windows 7, and Windows XP (at a minimum). * Command line interface, PowerShell, and performing automated tasking through use of code. ## Description Constellation West is a 29 -year WOSB and Prime Federal Contractor bidding on Information System work supporting NSWC-PD.