Senior Information Systems Security Officer III – Government

AT&T

. Support the creation and continuous maintenance of the IT Systems Accreditation Documentation Packages (SSP, SCTM, CONOPs, A&A, Test Plan, SOP's.

Posted 4/21/2026full-timeColumbia • Maryland • 🇺🇸 United StatesSenior💰 $118,700 - $276,600 per yearWebsite

Tech Stack

Tools & technologies

TypeScript

About the role

Key responsibilities & impact

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

Requirements

What you’ll need

Bachelors degree in relevant field of study
8 years of relevant experience
Required Clearance: TS/SCI (#tssci)

Benefits

Comp & perks

Medical/Dental/Vision coverage
401(k) plan
Tuition reimbursement program
Paid Time Off and Holidays (based on date of hire, at least 23 days of vacation each year and 9 company-designated holidays)
Paid Parental Leave
Paid Caregiver Leave
Additional sick leave beyond what state and local law require may be available but is unprotected
Adoption Reimbursement
Disability Benefits (short term and long term)
Life and Accidental Death Insurance
Supplemental benefit programs: critical illness/accident hospital indemnity/group legal
Employee Assistance Programs (EAP)
Extensive employee wellness programs
Employee discounts up to 50% off on eligible AT&T mobility plans and accessories, AT&T internet (and fiber where available) and AT&T phone

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

IT Systems Accreditation DocumentationIA securityA&A testingconfiguration managementsecurity operationRMF Continuous Monitoring Planpolicy developmentIT security trainingdocumentation managementhardware and software inventory

Soft Skills

trainingoversightcommunication