Senior Information System Security Officer – Government

AT&T

. Support the creation and continuous maintenance of IT Systems Accreditation Documentation Packages, including SSP, SCTM, CONOPs, A&A, Test Plan, SOPs, and User Guides .

Posted 11/6/2026full-timeColumbia • Maryland • United StatesSenior💰 $98,100 - $210,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in IT Systems Accreditation Documentation, Information Assurance (IA) security, and Risk Management Framework (RMF) Continuous Monitoring. Proficient in providing training, oversight, and configuration management to ensure compliance and security operations.

Highest-signal resume keywords

Active TS/SCI ClearanceBachelor's Degree in Related Field8 Years of Relevant ExperienceIA Security SupportConfiguration Management Support

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

IT Systems Accreditation DocumentationRisk Management Framework (RMF)Information Assurance (IA)Security OperationsConfiguration ManagementDocumentation UpdatesTechnical Risk AssessmentSecurity Findings ResolutionTraining on IA ProceduresHardware/Software Change Evaluation

Industry Keywords

Continuous Monitoring PlanAccreditation and Authorization (A&A)Security ConfigurationSystem AuthorizationIT Security TrainingSOPsUser GuidesCONOPsSSPSCTM

Tech Stack

Tools & technologies

Cyber SecurityTypeScript

About the role

Key responsibilities & impact

Support the creation and continuous maintenance of IT Systems Accreditation Documentation Packages, including SSP, SCTM, CONOPs, A&A, Test Plan, SOPs, and User Guides
Provide IA security onsite support for formal IT systems and A&A testing
Ensure onsite contract IT systems personnel are trained on IA procedures and requirements
Provide IA Security qualified personnel resources for continued accreditation and security operations under the RMF Continuous Monitoring Plan
Review proposed and implemented hardware and software changes for appropriate security operation
Provide configuration management support related to system security configuration
Update documentation and hardware/software inventory lists
Propose IA policies and procedures, provide IT security training, and perform IA oversight
Engage 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

Requirements

What you’ll need

Active TS/SCI with Current Poly
Bachelor’s degree in related field
8 years of relevant experience
Must work onsite five days per week from the customer's work location in Suitland, Maryland
40 hours per week

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 wireline phone
No relocation is offered