Senior ISSE – Onsite Security Engineer (TS/SCI)

AT&T; Reston (VA); On-site; USD 119,000 - 206,000; Full time

Benefits offered by this job

Medical/Dental/Vision coverage

401(k) plan

Tuition reimbursement program

Paid Time Off and Holidays

Paid Parental Leave

Disability Benefits

Job summary

AT&T Global Public Sector seeks a Senior Information Systems Security Engineer (ISSE) for the TAC2O program, delivering managed IT support for high-priority defense intelligence needs. Role requires onsite presence at customer site in Reston, strict adherence to DIA C&A and RMF processes, and collaboration with stakeholders to design secure systems.

Ideal candidates bring Windows and Linux expertise, 8570 compliance, and experience with ACAS, Trellix, Splunk, and STIGs.

Qualifications

• Bachelor's Degree or equivalent with 4 years of related experience
• 8570 compliance required (IAT Level 2 preferred) and must be compliant by security indoctrination
• Experience deploying, maintaining and troubleshooting security tools
• Strong analytical and problem-solving abilities
• Experience with secure system design and authorization processes (A&A, RMF, IATT, ATC, ATO)

Responsibilities

• Provide technical expertise to meet DIA C&A and IA requirements
• Work onsite full-time on classified programs and SAP hardware
• Design and recommend integrated security solutions for data protection
• Assist with DIA A&A process using RMF across design lifecycle
• Develop system test plans to assess security posture
• Analyze scan results and prioritize remediation
• Participate in incident response activities as needed

Skills

Windows administration

Linux proficiency

Security fundamentals

Problem solving

Attention to detail

Stakeholder collaboration

Education

Bachelor's Degree in a related area

4 years of relevant experience or substitution

Tools

ACAS

Trellix

Splunk

STIGs

Job description

AT&T Global Public Sector seeks a Senior Information Systems Security Engineer (ISSE) for the TAC2O program, delivering managed IT support for high-priority defense intelligence needs. Role requires onsite presence at customer site in Reston, strict adherence to DIA C&A and RMF processes, and collaboration with stakeholders to design secure systems.

Ideal candidates bring Windows and Linux expertise, 8570 compliance, and experience with ACAS, Trellix, Splunk, and STIGs.