Information Systems Security Officer (ISSO2) (Government)

AT&T•Columbia, SC

10d•Onsite

About The Position

AT&T Global Public Sector is seeking an Information Systems Security Officer (ISSO) to support the RIS I Government contract in Columbia, Maryland. This role is crucial for delivering and managing secure end-user IT systems within a mission-focused federal environment, ensuring information systems remain compliant, protected, and operationally ready. The position requires a security professional with strong Risk Management Framework (RMF) experience, a disciplined approach to documentation and compliance, and the ability to collaborate with ISSMs, mission stakeholders, technical teams, and program leadership to identify risk, strengthen controls, and support successful program execution. This role requires office presence a minimum of 5 days per week at a government customer site in Columbia, MD.

Requirements

Ten or more years of experience serving as an Information Systems Security Officer on programs and contracts of similar scope, type, and complexity.
Bachelor’s degree in Computer Science or a related discipline from an accredited college or university.
DoD 8570 compliance with IAM Level I is required.
Experience with at least one of the following areas: current security tools, hardware or software security implementation, communication protocols, or encryption techniques and tools.
Strong understanding of security principles, risk management, compliance monitoring, and information systems security technologies.
Experience supporting RMF activities, SSP maintenance, POA&M management, accreditation activities, and security documentation for classified systems.
Strong written and verbal communication skills with the ability to coordinate effectively across security, technical, mission, and leadership stakeholders.
Ability to work on-site at the customer location in Columbia, Maryland.
TS/SCI with polygraph clearance.

Nice To Haves

Experience supporting federal or Department of Defense programs in a classified environment.
Familiarity with ODNI and DoD security policies, authorization processes, and compliance expectations.
Experience partnering with ISSMs, system administrators, engineers, and mission stakeholders to resolve security findings and improve system posture.
Demonstrated ability to manage competing priorities, maintain accurate documentation, and operate with urgency in a mission-critical environment.

Responsibilities

Execute consistent and compliant Risk Management Framework procedures in support of information system authorization, accreditation, and reaccreditation activities.
Maintain asset records, System Security Plans, CONOPS, POA&Ms, and other information assurance documentation in accordance with applicable ODNI and DoD policies.
Monitor, audit, detect, and respond to areas of non-compliance, security gaps, and unmitigated risk across assigned systems.
Assess and improve system security posture by collaborating with the ISSM, mission stakeholders, technical teams, and program leadership.
Evaluate security solutions to ensure they meet requirements for processing classified information.
Propose, coordinate, implement, and enforce information systems security policies, standards, and methodologies.
Provide configuration management support for security-relevant information system software, hardware, and firmware.
Assist with day-to-day security operations, including user identification and authentication administration for assigned information systems.
Conduct research, analyze security information, identify gaps, and recommend practical actions to strengthen controls and reduce risk.
Support achievement of program service-level agreements and respond to after-hours requests as needed in a 24x7 mission environment.

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