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# Senior IT Infrastructure Support Specialist-ICAM & PKI

- **Company:** CACI International Inc.
- **Location:** Elkridge, MD, United States
- **Experience:** Expert
- **Salary:** $90,300 - $189,600
- **Contract:** Permanent contract
- **Skills:** Systems Engineering, JIRA, Unix, Configuration Management, Information Systems, Computer Networks, Identity and Access Management, Issue Tracking Systems, Lightweight Directory Access Protocols (LDAP), Public Key Infrastructure, Redmine, SQL Databases, Information Technology, Restful APIs
- **Published:** October 23, 2026
- **Apply:** https://www.techcareers.com/job.asp?id=3466563960&tx=DT10394UYZ&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54

## About the Role

* TS/SCI Clearance with polygraph
 * Bachelor's degree in System Engineering, Computer Science, Information Systems or related field plus 7 years of relevant experience
 * Experience with Public Key Infrastructure (PKI), Attribute Based Access Control (ABAC), and Entitlements Management
 * Knowledge of LDAP directories, SQL, and RESTful services
 * Experience with ticket tracking systems (e.g., JIRA, Redmine, SNOW)
 * Strong analytical thinking skills and ability to solve difficult problems independently
 * Experience with UNIX systems preferred

## Description

CACI is seeking a Systems Administrator to provide 24x7 support to an existing Operations Center for Identity, Credential, and Access Management (ICAM) systems as part of the MWIII Bridge contract in Hanover, MD. This position is responsible for monitoring critical ICAM infrastructure and resolving complex technical issues through expert troubleshooting and analysis.

Work schedule:

The shift rotates every 2 weeks over a 10 week period. There are 5 different shifts which could be DAY - 5am to 5pm; MID 5pm to 5am; or STRAIGHT - Mon to Fri (8 hours per day) which could be 4 days on and 3 off or 3 on and 4 off etc., * Monitor and maintain critical IT infrastructure systems including servers, storage, and network components

 * Provide Tier 2 support for Identity, Credential, and Access Management (ICAM) systems in a 24x7 Operations Center environment
 * Support customers reporting issues with Enterprise and IC Attribute and Authorization services
 * Analyze, troubleshoot, and resolve complex technical issues related to Public Key Infrastructure (PKI) services, attribute services, authorization services, and entitlement services.
 * Document technical procedures and maintain configuration management
 * Use JIRA for ticket management and provide support via email, chat, and phone