Specialist, IT Security (Identity & Directory Services Administrator)

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

Job Description:

We are seeking an experienced Active Directory (AD) and Entra ID (Azure AD) Administrator to support a large, multi-domain, multi-tenant, multi-national identity environment for a major defense contractor. This role is responsible for supporting hybrid identity environments, including secure authentication, authorization, and compliance across on-premises and cloud-based systems.  The ideal candidate has recent technical expertise in AD and Entra ID, strong security awareness, proven troubleshooting skills, and hands-on experience supporting enterprise-scale identity solutions.  If you have the necessary skills, join us in our mission to provide innovative and reliable identity solutions.

Essential Functions:

Identity & Directory Services

• 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 ID tenants, 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)

Security & Access Management

• Work with Conditional Access, MFA, and identity protection policies


• Monitor and respond to identity-related security events and alerts


• Understanding of least-privilege access and zero-trust principles

Authentication & Integration

• Support secure authentication mechanisms including Kerberos, SAML, OAuth, and modern authentication


• Configure Entra ID with SaaS, IaaS, and on-premises applications


• Manage service principals, app registrations, and API permissions

Operations & Troubleshooting

• 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 requried

Automation & Improvement

• Automate identity management tasks using PowerShell and Entra ID APIs


• Recommend and implement improvements to security, scalability, and reliability


• Participate in infrastructure projects, migrations, and upgrades

Organizational Changes

• Support acquisition, divestiture, and integration activities.


• Support AD forest/domain migration work and Azure tenant consolidations.

Must be able to obtain a security clearance.

Qualifications:

• 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 ID (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 PowerShell experience, including creating and modifying scripts for process automation

Preferred Additional Skills:

• Experience migrating identities and objects between AD forests


• Microsoft certifications (e.g., Entra ID, 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 Vermont is $73,000-$135,000. This is not a guarantee of compensation or salary, as final offer amount may vary based on factors including but not limited to experience and geographic location. L3Harris also offers a variety of benefits, including health and disability insurance, 401(k) match, flexible spending accounts, EAP, education assistance, parental leave, paid time off, and company-paid holidays. The specific programs and options available to an employee may vary depending on date of hire, schedule type, and the applicability of collective bargaining agreements.

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