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AT&T
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October 30, 2025
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Information Systems Security Officer (ISSO 0) (Government)

Columbia, MD
Full-time
Onsite
$69K/yr - $149K/yr
Entry, Mid Level
AT&T Global Public Sector is a trusted provider of secure, cloud-based solutions to the Federal Government. They are seeking an Information Systems Security Officer to manage end-user IT systems and ensure compliance with security policies and requirements.
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Responsibilities

  • Evaluate security solutions to ensure they meet security requirements for processing classified information.
  • Propose, coordinate, implement, and enforce information systems security policies, standards, and methodologies.
  • Maintain operational security posture for an information system or program.
  • Develop and maintain documentation for C&A in accordance with ODNI and DoD policies.
  • Develop and update the system security plan and other IA documentation.
  • Provide configuration management for security-relevant information system software, hardware, and firmware.
  • Assist with the management of security aspects of the information system and perform day-to-day security operations of the system.
  • Develop system security policy and ensure compliance.
  • Administer the user identification and authentication mechanism of the Information System (IS).
  • Candidate may be required to respond to after-hours requests as required in a 24 x 7 environment.

Qualification

Required

  • Two (2) years of experience as an ISSO on programs and contracts of similar scope, type, and complexity are required.
  • Experience is to include at least one (1) of the following areas: knowledge of current security tools and hardware/software security implementation; communication protocols; encryption techniques/tools.
  • Bachelor’s degree in Computer Science or related discipline from an accredited college or university is required.
  • Four (4) years of additional ISSE experience may be substituted for a bachelor’s degree.
  • DoD 8570 compliance with IAT Level I or higher is required.
  • Required Clearance: TS/SCI with polygraph.

Preferred

Benefits

  • 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) \\Pro-rated when working less than 40 hrs/wk.
  • 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
AT&T is a telecommunications company that provides wireless communications, internet and digital television services.
Glassdoor
3.5
Founded in 1983
Dallas, Texas, USA
10001+ employees
https://www.att.com/
AT&T is a telecommunications company that provides wireless communications, internet and digital television services.
Glassdoor
3.5
Founded in 1983
Dallas, Texas, USA
10001+ employees
https://www.att.com/