Information Systems Security Engineer ; Government

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.

RIS I is the delivery of regional IT services to the end user. We offer support of end user devices including desktop, workplace peripherals, and voice and video devices. We support local and campus area networks, including wireless and cable plant.

AT&T has an opening for an Information Systems Security Engineer to support the team by performing vulnerability scans, analyzing scan results, and collaborating with framework teams to proactively manage cyber risk and enhance the organization's security posture through remediation of identified security weaknesses. This role will also support technical security assessments of computing environments and identification of non-compliance with established Information Assurance (AI) standards and regulations and recommend mitigation strategies.

• Configure, operate, and maintain Tenable.sc and Nessus to identify and track vulnerabilities across all environments.
• Troubleshoot scans and/or coordinate with customer or program resources to resolve scanning issues.
• Conduct STIG compliance scans and interpret results to assist system administrators and ISSEs to validate system hardening and control effectiveness.
• Analyze vulnerability data and trends; create actionable findings and coordinate remediation efforts with system administrators and ISSEs.
• May be required to perform job duties/responsibilities outside of normal work location.
• Integrate vulnerability and compliance data into Splunk for correlation, trend analysis, and automated compliance reporting.
• Develop dashboards and reports to visualize system risk posture and track remediation progress.
• Support RMF (Risk Management Framework) activities, providing technical input for security controls (e.g., Tenable results).
• Assist in developing or refining scanning policies, baselines, and SOPs to improve security posture and compliance consistency.
• Support audits and assessments by providing detailed vulnerability data, remediation evidence, and STIG compliance documentation.
• Implementing security vulnerability testing tools to provide continuous monitoring and patch verification.
• Test and evaluate configurations in a lab environment.

This position requires office presence a minimum of 5 days per week and is only located in the location(s) posted. No relocation is offered.

Knowledge of servers, virtualization, routers, switches, and firewalls as well as VLANS, routing and network segmentation.

Working knowledge of DoD STIGs, and RMF process (NIST 800-53).

Experience using Splunk for data ingestion, search queries, correlation, and report creation.

Active DoD 8570.01-M compliance with Information Assurance Technical (IAT) Level II (Sec+) or Information Assurance Systems Architect and Engineer (IASAE) Level 1 (CASP or CISSP) is required.

Provide security operations support as needed.

Candidates should possess excellent communication and teamwork skills.

Competitive candidates are results oriented, high energy, and self-motivated.

Candidate may be required to respond to after-hours requests as required in a 24 x 7 environment.

Required Clearance: TS/SCI with polygraph. (#ts/sci) (#polygraph)

Experience as an ISSE on programs and contracts of similar scope, type, and complexity within the Federal Government is desirable. Bachelor’s degree in Computer Science, Information…