Information Systems Security Officer (ISSO III) (Government)
Columbia, Maryland
Job Description:
AT&T Global Public Sector is a trusted provider of secure, IP enabled, cloud-based, network solutions and professional services to the Federal Government. We are dedicated to recruiting, developing and empowering a diverse, high-performing workforce that is passionate about what they do, committed to our shared values and dedicated to our customers’ mission.
Intelink Services provide interagency information sharing, content discovery, and collaboration capabilities on the IC system domains to the IC and its partners in Defense, Homeland Security, Foreign Affairs, and Law Enforcement.
AT&T has an opening for an Information Systems Security Officer: To support Public Sector Solutions. This position requires office presence a minimum of 5 days per week and is only located in the location(s) posted. No relocation is offered. Work to be performed in Laurel, MD.
Description of Job Duties/Responsibilities:
- Work with the IA team to plan and coordinate the IT security programs and policies.
- Coordinate with system developers, administrators, and owners on security changes.
- Manage and control changes to the system and assess the security impact of those changes.
- Perform security continuous monitoring and reporting for the systems supported on the contract.
- Prepare and maintain the Security documentation, such as SSPs, for the systems supported on the contract in accordance with IC and Agency policies.
- Serve as the initial security Approval Authority for the systems supported on the contract.
- Utilize COTS/GOTS to communicate system status and compliance to management and shareholders.
- Support AO/DAO, SCA, and ISSM on system Assessment and Authorization (A&A) duties to obtain and maintain ATOs for the systems supported on the contract.
- Conduct daily review of and respond to security related tickets.
- Perform the role of ISSO team lead; provide guidance and direction to more junior members of the IA team.
- Windows or Linux SA experience.
- Network Admin experience.
- AWS experience.
- Experience with an audit reduction and tool such as Splunk.
- Experience with a vulnerability scanner such as Nessus.
- Experience with Xacta, LatteArt.
- Familiarity with IC, DoD, and NIST Security Policies and Procedures.
Required Clearance
TS/SCI FS
Additional Clearance Requirements:
Enter additional requirements
Required Qualifications: High School Diploma with 15 years of work experience in any combination of: System Administrator (SA), Information System Security Officer (ISSO), Information System Security Engineer (ISSE), Information Technology (IT) Service Desk, Computer Network Defense (CND) Analyst, Telecommunication Technician, and Network Administration. DoD 8570 compliance with Information Assurance Management (IAM) Level I or higher is required/
OR
Bachelor of Science Degree in Information Technology Discipline with 4 years of work experience in any combination of: System Administrator (SA), Information System Security Officer (ISSO), Information System Security Engineer (ISSE), Information Technology (IT) Service Desk, Computer Network Defense (CND) Analyst, Telecommunication Technician, and Network Administration. DoD 8570 compliance with Information Assurance Management (IAM) Level I or higher is required.
OR
Masters Degree in Information Technology Discipline with 2 years of work experience in any combination of: System Administrator (SA), Information System Security Officer (ISSO), Information System Security Engineer (ISSE), Information Technology (IT) Service Desk, Computer Network Defense (CND) Analyst, Telecommunication Technician, and Network Administration. DoD 8570 compliance with Information Assurance Management (IAM) Level I or higher is required.
Ready to join our team? Apply today!
Our Information Systems Security Officer (ISSO III) (Government) earns between $108,000 - $219,750 yearly. Not to mention all the other amazing rewards that working at AT&T offers. Individual starting salary within this range may depend on geography, experience, expertise, and education/training.
Joining our team comes with amazing perks and 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
Weekly Hours:
40Time Type:
RegularLocation:
Columbia, MarylandIt is the policy of AT&T to provide equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, AT&T will provide reasonable accommodations for qualified individuals with disabilities. AT&T is a fair chance employer and does not initiate a background check until an offer is made.
Job ID R-93320 Date posted 01/08/2026
Benefits
Your needs? Met. Your wants? Considered. Take a look at our comprehensive benefits.
- Paid Time Off
- Tuition Assistance
- Medical and dental plans
- Discounts
- Training & Development
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