Information Systems Security Officer, Skill Level 1

AT&T

Information Systems Security Officer at AT&T supporting information assurance programs and ensuring mission critical systems security. Requires 5 years experience and a Bachelor’s degree in Computer Science or related field.

Posted 4/18/2026full-timeColumbia • Maryland • 🇺🇸 United StatesMid-LevelSenior💰 $98,100 - $156,530 per yearWebsite

Tech Stack

Tools & technologies

Cyber SecurityFirewalls

About the role

Key responsibilities & impact

Support the Information System Security Manager (ISSM) and senior ISSOs in implementing and enforcing information systems security policies, standards, and methodologies.
Help maintain the security posture of classified information systems, supports Risk Management Framework (RMF) activities, manage security-relevant configuration control, and develop and maintain cybersecurity documentation in accordance with ODNI and DoD requirements.
Maintain the operational security posture of classified information systems, including support for continuous monitoring activities.
Develop system security policy and ensure compliance with applicable requirements.
Evaluate security solutions to ensure they meet security requirements for processing classified information.
Assist with the management of security aspects of information systems and perform day-to-day security operations.
Administer user identification and authentication mechanisms for information systems, including privileged user oversight.
Provide configuration management (CM) for security-relevant information system software, hardware, and firmware; coordinate and assess security impact of changes.
Maintain records for workstations, servers, routers, firewalls, intelligent hubs, network switches, and related components, including system upgrades.
Develop, update, and maintain RMF/IA documentation (e.g., SSP) and supporting artifacts; keep documentation accurate and audit-ready.

Requirements

What you’ll need

Five (5) years of experience as an ISSO on programs and contracts of similar scope, type; and complexity is required.
Bachelor's degree in Computer Science or related discipline from an accredited college or university is required.
Four (4) years of additional experience as an ISSO may be substituted for a bachelor's degree.
Experience is to include at least one (1) of the following areas: knowledge of current security tools, hardware/software security implementation; communication protocols; and encryption techniques/tools.
DOD 8570 compliance with IAT Level I or higher is required.

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

information systems securityRisk Management Framework (RMF)cybersecurity documentationconfiguration management (CM)user identification and authenticationsecurity solutions evaluationcontinuous monitoringsecurity policy developmentencryption techniqueshardware/software security implementation

Certifications

DOD 8570 complianceIAT Level I