Information System Security Officer (ISSO) (Government)

Information System Security Officer (ISSO)

Position Overview

AT&T Global Public Sector is seeking an Information System Security Officer (ISSO) to support TAC2O systems. This role involves providing managed IT support for SAP-IT systems, focusing on high-priority defense intelligence collection needs and the development of advanced technical collection capabilities.

Employment Type

Full-time

Location Type

On-site (Customer's site)

Salary

$98,100 - $205,000 (Individual starting salary may depend on geography, experience, expertise, and education/training.)

Responsibilities

• Provide subject matter expertise and advisory services on technical matters related to 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 documentation.
• Monitor and correlate data from various sources (e.g., Splunk, Trellix, STIGs, ACAS) to identify and mitigate threats, vulnerabilities, and non-compliance.
• Perform security sustainment activities including Change Management, Account Management, Media Protection, and File Transfers.
• Ensure the implementation and validation of required cybersecurity controls, including continuous monitoring actions.
• Assist in overseeing and managing the day-to-day operations of SAP Information Systems.
• Support the 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.

Requirements

• Clearance: TS/SCI
• Clearance: Polygraph (can be obtained during cross-over)
• Demonstrated 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.
• Minimum of 5 years of relevant experience.
• Must presently be 8570 compliant (IAT Level 2).
• Requires office presence a minimum of 5 days per week at the customer's site.
• No relocation is offered.
• No Telework.

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 Special Access Programs (SAPs) and the Intelligence Community (IC).

Company Information & Benefits

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.

Perks and Benefits:

• Medical/Dental/Vision coverage
• 401(k) plan
• Tuition reimbursement program
• Paid Time Off and Holidays (at least 23 days of vacation annually and 9 company-designated holidays)
• Paid Parental Leave
• Paid Caregiver Leave
• Additional sick leave (may be available beyond state and local requirements)
• Adoption Reimbursement
• Disability Benefits (short term and long term)
• Life and Accidental Death Insurance
• Supplemental benefit programs: critical illness/accident, hospital indemnity