Information Systems Security Engineer 1

AT&T

Confirmed live today High trust

Quick summary

Work type
On-site
Location
Columbia, MD
Salary
$98,100–$143,200 / yr
Posted
14 days ago
Freshness
Confirmed live today
Closes
Jan 31, 2027

Market check

Salary context

Below market

How this pay compares to similar roles

Similar $164k
This role $121k
$85k $216k
below market most similar roles pay here above market

This role pays less than 83% of similar roles. Most pay $135,062–$192,000 — the blue band above. At the midpoint, this role pays about $121k versus about $164k 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.

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View all roles at AT&T

At a glance

TL;DR · Information Systems Security Engineer 1

The Information Systems Security Engineer (ISSE1) (Government) joins the RIS I team to provide technical security engineering for assigned systems and System Security Plans. The role involves performing technical security assessments to identify vulnerabilities and non-compliance with Information Assurance standards. Key responsibilities include implementing and validating security controls from NIST SP 800-53, managing Authorization to Operate packages, and performing continuous monitoring. The engineer will collaborate with vulnerability scanning teams to address findings and maintain the Security Control Traceability Matrix. Required technical skills include knowledge of servers, virtualization, routers, switches, firewalls, VLANS, and network segmentation. Candidates must be proficient with Tenable, Splunk, STIG Viewer, Windows, and Linux. The position focuses on RMF compliance, configuration management, and remediating POA&M items within a federal government context.

What you'll do

  • Serve as the technical security engineer for assigned systems and System Security Plans to ensure full lifecycle RMF compliance.
  • Provide technical input for Authorization to Operate (ATO) packages, risk acceptance decisions, and continuous monitoring efforts.
  • Implement and validate security controls from NIST SP 800-53 and map them within the Security Control Traceability Matrix.
  • Coordinate with ISSOs and system administrators to document and remediate vulnerabilities, control deficiencies, and POA&M items.
  • Lead reauthorization efforts by updating and validating all system technical artifacts on schedule.
  • Evaluate and document security-relevant changes, including configuration updates, patches, and system modifications for RMF impact.
  • Collaborate with vulnerability scanning teams to ensure scan compliance and accurate reflection of the system’s risk posture.
  • Test and evaluate security configurations within a lab environment.

What we're looking for

  • TS/SCI security clearance with a polygraph is required.
  • Seven years of experience as an ISSE on Federal Government programs and contracts of similar scope and complexity is required.
  • A Bachelor's degree in Computer Science, Information Assurance, Information Security System Engineering, or a related discipline is required.
  • Four years of additional ISSE experience may be substituted for a bachelor's degree.
  • DoD 8570 compliance with IASAE Level 2 is required.
  • Demonstrated experience authoring and maintaining System Security Plans (SSPs), SCTMs, and POA&Ms is required.
  • Knowledge of servers, virtualization, routers, switches, firewalls, VLANS, routing, and network segmentation is required.
  • Knowledge of Windows, Linux, and network security controls implementation is required.
  • Hands-on familiarity with Tenable, Splunk, STIG Viewer, and customer security compliance management tools is required.
  • Python skills are preferred.

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