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Government

Senior Information Security Professional (Government)

Reston, Virginia

Before you apply

Check each circle to confirm you meet the job requirements.

This position requires office presence of a minimum of 5 days per week and is only located at customer's site.


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.


AT&T has an opening for a Senior Information Security Professional for the TAC2O systems in providing managed IT support of SAP-IT systems for high-priority defense intelligence collection needs and develop and field advanced technical collection capabilities. 

Duties/Responsibilities:

·         Responsibilities are full-time on customer’s onsite and will cover classified programs and Special Access Programs (SAP). No Telework.

·         Provide subject matter expertise and serve as an advisor on technical matters involving the security of assigned Information Systems.

·         Maintain and develop System Security Plans (SSP), Security Controls Traceability Matrices (SCTM, Continuous Monitoring Plans (ConMon), Plan of Actions and Milestones (POA&Ms), and other related Plans, Procedures and Guidance.

·         Monitoring and correlating data (e.g., logs, events, activity, etc.) from a variety of sources (e.g., Splunk, Trellix, STIGs, ACAS, etc.) to identify and mitigate threats, vulnerabilities and non-compliance.

·         Security sustainment activities (Change Management, Account Management, Media Protection, File Transfers, etc.)

·         Ensure required cybersecurity controls are implemented and validated, to include continuous monitoring actions.

·         Assist in overseeing and managing day-to-day operation of SAP Information Systems.

·         Assist team in Authorization and Accreditation (A&A) process using RMF across the design lifecycle for classified systems obtaining and maintaining Authority to Operate (ATO) and Authority to Connect (ATC).

·         Demonstrate a strong understanding of Networks, Cloud, and IT system security authorization procedures.

Required Clearance:

TS/SCI with Poly (#tssci) (#polygraph)


Required Qualifications:

·         Demonstrates strong experience with IC/DoD customer's Assessment and Authorization (A&A) process (e.g., RMF, NIST800-53, ICD503, JSIG)

·         Experience with XACTA

·         Experience in developing and implementing DoD approved information security controls, procedures and documentation for the operation of classified systems

  • 5 years of relevant experience

·         Must presently be 8570 compliant (IAT Level 2)

Desired Qualifications:

  • A Bachelor’s Degree from an accredited institute in an area applicable to this position and eight (8) years of relevant experience
  • Previous experience as an ISSO, ISSM, ISSE, or Security Controls Assessor
  • Experience with the Special Access Programs (SAPs) and Intelligence Community (IC)

Our Senior Information Security Professional's earn between $98,100 - $205,000. 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)
  • 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

Weekly Hours:

40

Time Type:

Regular

Location:

Reston, Virginia

AT&T and its subsidiaries are committed to equal employment opportunity. All hiring, promotion, and other employment decisions remain merit-based and free from discrimination on the basis of race, color, religion, religious creed, national origin, ancestry, age, sex, sexual orientation, gender, gender identity, gender expression, physical disability, mental disability, pregnancy, medical condition, genetic information, marital status, citizenship status, military status, veteran status, or any other characteristic protected by federal, state, or local laws. In addition, AT&T will provide reasonable accommodations to qualified individuals with disabilities. AT&T is a fair chance employer and does not initiate a background check until an offer is made. Click here to learn more or request an application accommodation here.

Job ID R-123147 Date posted 09/21/2026
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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

Learn more about benefits

Our hiring process

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Assessments

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Interview

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Conditional Job Offer

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