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# Senior Information System Security Officer (ISSO) - Government

- **Company:** AT&T Inc.
- **Location:** Columbia, MD, United States
- **Experience:** Expert
- **Salary:** $98,100 - $210,000
- **Contract:** Permanent contract
- **Skills:** Configuration Management, Cyber Security, Information Systems, Databases, Information Security Management, Information Technology
- **Published:** November 8, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=7dd5ea711b15b7e9

## About the Role

* Bachelor's degree in related field.
 * 8 years of relevant experience.

## Description

* Support the creation and continuous maintenance of the IT Systems Accreditation Documentation Packages (SSP, SCTM, CONOPs, A&A, Test Plan, SOP's. User Guides etc).
 * Provide IA security on-site support for all formal IT systems and A&A testing.
 * Ensure all on-site contract IT systems personnel are trained on all IA procedures and requirements for each of the IT systems.
 * Provide IA Security qualified personnel resources to support the continued accreditation and security operation of the information system under the RMF Continuous Monitoring Plan.
 * Review all hardware and software changes proposed and/or being implemented for appropriate security operation, providing configuration management support as it relates to the security configuration of the system, updating documentation and hardware and software inventory lists. Propose IA policy, procedures, provide IT security training, and perform IA oversight.
 * Serve as a technically proficient security partner capable of engaging engineering, system administrator, database, and cybersecurity subject matter experts to assess technical risks, evaluate hardware and software changes, resolve security findings, and sustain system authorization under the RMF Continuous Monitoring Plan.