Information System Security Officer – Mid-Level (Government)

Chantilly, VAFull-timePosted Aug 6, 2026

This position requires office presence of a minimum of 5 days per week and is only located at customer's site. No relocation is offered.

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.

Our Federal Solutions Team supports the intelligence community, providing, operating, and assuring critical voice, video, and collaboration services for the full spectrum of operations. The services required by this contract will assist providing the NRO with a secure mission environment. The contractor shall provide realistic, innovative information security solutions to accomplish the requirements in addition to program management. The services obtained under this contract shall provide expertise to support information systems security, security control assessments, information assurance engineering, and security control assessments test engineering.

AT&T has an opening for an Information System Security Officer (ISSO) Mid-Level: To support AT&T Federal Solutions.

Inclusive, but not limited to:

The Mid-Level ISSO position is an information systems professional who aids the Government in IT and information systems security issues affecting the mission. Duties may entail the following:

Data transferring from one system to another
Research on cyber issues/matters
Participate in detection of computer security compromises.
Responsible for managing a system and following the process with support to ATO
Support Senior ISSO’s with daily requirements.
Conducting regular security audits and assessments to identify vulnerabilities and risks.
Monitoring network traffic for unusual activity and responding to security incidents.
Collaborating with IT staff to integrate security measures into system designs and ensure effective security practices.
Mentoring security protocols to staff and maintaining up to date knowledge of cybersecurity trends.

Required Clearance:

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

Required Qualifications:

1. Hands on Experience with the RMF Process, minimum 1 or 2 of the processes

2. Data transfer knowledge

3. High School/GED AND 6 Years’ Experience or Associate AND 4 Years Experience or Bachelor’s AND 2 Years’ Experience or Master AND 0-2 Years’ Experience.

4. CERTIFICATION: ONE of the IAT II Level Certs below:

Our Information System Security Officer (ISSO) Mid-Level earn between $98,100 - $115,000. 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:

Time Type:

Regular

Location:

Chantilly, 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.