Information System Security Engineer

AT&T

Confirmed live today High trust

Quick summary

Work type: On-site
Location: Chantilly, VA
Salary: $158,200–$237,400 / yr
Posted: 7 days ago
Freshness: Confirmed live today
Closes: Nov 20, 2026
Nearby: 99+ roles within 25 mi

Market check

Salary context

Above market

How this pay compares to similar roles

Similar $168k

This role $198k

$113k $251k

below market most similar roles pay here above market

This role pays more than 78% of similar roles. Most pay $142,400–$193,000 — the blue band above. At the midpoint, this role pays about $198k versus about $168k for comparable roles.

Based on 240 similar postings.

Employer

About AT&T

AT&T is a US-based telecommunications company providing wireless, broadband, and fiber internet service along with phone and connectivity products for consumers and businesses.

AT&T currently has 91 open roles on FindRole.

Listed pay typically runs $98,100–$196,000 across 81 roles with salary data.

Most-posted roles

View all roles at AT&T

At a glance

TL;DR · Information System Security Engineer

Role Posting Log in to save

The Information System Security Engineer (Government) joins the Integrity, Compliance & Risk Management Team to provide technical leadership for the Federal Aviation Administration - Enterprise Network Services program. This role manages the Tenable Security Center capability, owning the end-to-end vulnerability management lifecycle for Civilian, Department of Defense, State, and Local Government customers. You will translate FISMA, NIST Risk Management Framework, and NIST SP 800-53 requirements into scalable security practices, managing scan governance, remediation coordination, and continuous monitoring. Key technologies include Tenable Security Center, Xacta 360, ServiceNow, Windows Server, Active Directory, Nutanix, CyberArk, SailPoint, Splunk, Infoblox, Cisco SD-WAN, NetFlow, and IPsec. You will evaluate exposure across enterprise identity, virtualization, and network technologies to provide technically credible remediation guidance and maintain defensible compliance outcomes.

Skills

Tenable Security Center Xacta 360 ServiceNow NIST RMF FISMA Active Directory Splunk CyberArk SailPoint Infoblox Cisco SD-WAN NetFlow IPsec Windows Server Nutanix Identity and Access Management Vulnerability Management FEDRAMP CMMC

What you'll do

Lead and improve the enterprise vulnerability management program using Tenable Security Center.
Manage Tenable Security Center architecture, including scan strategies, repositories, credentials, and platform integrations.
Own the end-to-end vulnerability lifecycle from asset onboarding and scanning to remediation tracking and closure.
Integrate Tenable findings with Xacta 360 and ServiceNow to support continuous monitoring and authorization reporting.
Translate FISMA, NIST RMF, and contractual obligations into measurable security processes and controls.
Analyze vulnerability data to identify coverage gaps, distinguish false positives, and provide technical remediation guidance.
Develop executive dashboards and operational metrics to communicate security posture and residual risk.
Evaluate infrastructure changes for impacts on scan coverage, authentication, and compliance evidence.

What we're looking for

Must possess a Bachelor’s degree.
Must have an active CISSP certification.
Must possess a Public Trust security clearance.
CSM, Sec+, or CCNA certifications (preferred).
Advanced proficiency with Xacta 360 or comparable GRC platforms (preferred).
Hands-on experience with Tenable Security Center and enterprise vulnerability management (preferred).
Working knowledge of the ServiceNow ecosystem, including GRC and vulnerability management (preferred).
Experience with FEDRAMP, CMMC Certification Process, and certified cloud service deployment (preferred).

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