Information Systems Security Engineer Level 3

AT&T

Confirmed live today High trust

Quick summary

Work type
On-site
Location
Columbia, MD
Salary
$118,700–$243,300 / yr
Posted
22 days ago
Freshness
Confirmed live today
Closes
Jan 31, 2027

Market check

Salary context

Above market

How this pay compares to similar roles

Similar $163k
This role $181k
$104k $258k
below market most similar roles pay here above market

This role pays more than 67% of similar roles. Most pay $132,187–$193,000 — the blue band above. At the midpoint, this role pays about $181k versus about $163k 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 Level 3

The Information Systems Security Engineer Level 3 (Government) joins the RIS I team to support regional IT services. This role involves performing technical security assessments of computing environments to identify vulnerabilities and ensure compliance with Information Assurance standards. The engineer will architect, design, and implement security-focused tools, provide vulnerability remediation advice to developers, and evaluate products in lab environments. Key responsibilities include monitoring IA policy, reviewing certification and accreditation documentation, and managing incident response activities. Required technical expertise includes 800-53 controls, Firewalls, IDS/IPS, VLANS, routing, virtualization, and SIEM technologies like Splunk. The candidate must also possess skills in malware identification, PKI, multi-factor authentication, and proficiency in Microsoft Windows and Linux operating systems to secure high-value assets and complex networking environments.

What you'll do

  • Perform technical security assessments of computing environments to identify vulnerabilities and non-compliance with IA standards.
  • Architect, design, and implement security-focused tools and services for secure networking and computing environments.
  • Provide software vulnerability remediation advice to development teams and implement continuous monitoring tools.
  • Review certification and accreditation documentation to ensure content completeness and regulatory compliance.
  • Test and evaluate products in a lab environment to ensure functional and secure architecture.
  • Create test cases and monitor systems for compliance with 800-53 controls.
  • Develop and report on incident response activities, including malware identification, containment, and eradication.
  • Create security event dashboards using SIEM technologies like Splunk.

What we're looking for

  • TS/SCI security clearance with a polygraph is required.
  • Bachelor’s degree in Computer Science, Information Assurance, Information Security System Engineering, or a related discipline is required.
  • Twenty years of experience as an ISSE on programs and contracts of similar scope, type, and complexity is required.
  • A Master’s degree in a related field may substitute for two years of experience, reducing the requirement to eighteen years.
  • Four years of additional ISSE experience may substitute for a Bachelor’s degree.
  • DoD 8570 compliance with IASAE Level 2 is required.
  • Proficiency in Microsoft Windows and Linux operating systems is required.
  • Knowledge of Firewalls, IDS/IPS, VLANS, routing, and virtualization technologies is required.

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