Specialist, IT Security; Identity & Directory Services Administrator

Overview

L3

Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3

Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.

L3

Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.

Job Title:

Specialist, IT Security (Identity & Directory Services Administrator)

Job Code: 37324

Job Location:

(On Site) Melbourne, FL

Job Schedule:

9/80:
Employees work 9 out of every 14 days – totaling 80 hours worked – and have every other Friday off

• Administer, maintain, and troubleshoot Active Directory Domain Services (AD DS), including users, groups, computers, OU structure, GPOs, domain controllers, and associated Microsoft or third-party applications
• Support Microsoft Entra , identities, and directory integrations
• Support hybrid identity solutions using Entra Connect (formerly AADC) and on-prem identity solutions
• Support identity lifecycle processes (joiners, movers, leavers)
• Work with Conditional Access, MFA, and identity protection policies
• Monitor and respond to identity-related security events and alerts
• Understand least-privilege access and zero-trust principles
• Support secure authentication mechanisms including Kerberos, SAML, OAuth, and modern authentication
• Configure Entra  SaaS, IaaS, and on-premises applications
• Manage service principals, app registrations, and API permissions
• Diagnose and resolve identity, authentication, and replication issues
• Perform routine maintenance, health checks, and performance tuning
• Support audits, compliance requirements, and security assessments
• Develop and maintain documentation, standards, and operational procedures
• Participate in on-call rotation and provide after-hours support as required
• Automate identity management tasks using Power Shell and Entra
• Recommend and implement improvements to security, scalability, and reliability
• Participate in infrastructure projects, migrations, and upgrades
• Support acquisition, divestiture, and integration activities
• Support AD forest/domain migration work and Azure tenant consolidations
• Must be able to obtain a security clearance.

• Bachelor’s degree in Information Systems, Computer Sciences, or an equivalent IT-related degree and a minimum of 4 years of prior relevant experience. Graduate Degree and a minimum of 2 years of prior related experience. In lieu of a degree, minimum of 8 years of prior related experience.
• 3+ years of experience supporting Active Directory, including building & maintaining AD domain controllers, troubleshooting replication and authentication issues, working with group policies, etc.
• 2+ years of Microsoft Entra  (Azure AD) administration experience, including experience in a hybrid environment with responsibility for supporting identity synchronization, MFA, privileged identity management, tenant management, conditional access policy creation & modification, and setup of identity federation application authentication.
• 1+ years of Power Shell experience, including creating and modifying scripts for process automation
• Experience migrating identities and objects between AD forests
• Microsoft certifications (e.g., Entra , Azure Administrator, Identity & Access Administrator) are beneficial.
• Willingness to keep data and information strictly confidential.
• Experience in regulated or high-security environments
• Strong problem-solving and troubleshooting skills.

In compliance with pay transparency requirements, the salary range for this role in California, Massachusetts, New Jersey, Washington, and the Greater

D.C, Denver, or NYC areas is $84,000-$156,000. The salary range for this role in Colorado state, Hawaii, Illinois, Maryland, Minnesota, New York state, and…