Skip to content
8140 Compliance
CertificationsWork rolesMapperTimelineFor teams
CybersecurityDCWF 521

Cyber Defense Infrastructure Support Specialist

Tests, implements, deploys, maintains, and administers the infrastructure hardware and software that defends the network — IDS/IPS, firewalls, and related defensive tooling.

Also seen as: CSSP Infrastructure Support, CSSP-IS

Baseline certifications for this role

These certifications are accepted foundational options for the Cyber Defense Infrastructure Support Specialist work role in our seed mapping. Open a cert for full detail, or jump straight to exam-ready practice.

Proficiency levels — what changes

Proficiency tracks how independently you can deploy and tune defensive infrastructure across the environment.

Basic

Demonstrates foundational knowledge of the work role's tasks. Entry-level qualification options apply.

Intermediate

Contributes to and applies the work role's tasks with growing independence.

Advanced

Develops, reviews, and approves the work role's tasks. A cascading rule applies: an option that qualifies at a higher proficiency level also qualifies at the lower levels.

Cyber Defense Infrastructure Support Specialist & DoD 8140 — FAQ

What is the Cyber Defense Infrastructure Support Specialist work role?
It is the DCWF work role (often coded 521) for personnel who deploy and maintain the defensive infrastructure — sensors, IDS/IPS, and firewalls — that protects the network. Foundational options commonly include ISC2 SSCP, CySA+, and CEH; confirm against the Qualification Matrix.