10775 – Sr. Engineering Systems Administrator (Active Directory) Location – Fountain Valley, CA Essential Functions: + Administer and maintain Active Directory (AD) infrastructure, including domain controllers, replication, group policies, organizational units (OUs), and user/group management. + Create, modify, and delete user accounts, groups, shared drives, and organizational units in Active Directory. Manage permissions, access rights, and security group memberships. + Design, implement, and troubleshoot Group Policy Objects (GPOs) for user and computer configurations across the organization. + Manage Azure AD configuration, including security policies, SSO, application integration, account synchronization, and MFA + Manage multiple O365 tenants, including migrations, account policies, OneDrive, SharePoint Online, Teams, MPIP, and mobile device management. + Implement and enforce security protocols for user authentication, access control, and password policies. Regularly audit AD permissions to ensure compliance with internal security standards. + Perform regular health checks on Active Directory, identifying and resolving any performance or security issues. Ensure high availability and proper replication between domain controllers. + Develop and maintain Active Directory backup and disaster recovery plans. Ensure regular system backups and conduct recovery tests to verify AD system integrity. + Provide timely resolution for Active Directory-related incidents, including login failures, replication issues, and DNS problems. Investigate and resolve complex technical issues. + Work closely with other IT teams (e.g., Networking, Systems, Security) to plan and implement solutions for various enterprise-level initiatives. + Document AD processes, configurations, and troubleshooting steps. + Plan and execute Active Directory migrations and upgrades with minimal downtime. + Administration and management of Windows Servers through full life cycle. + Support and adhere to change management process. + Perform scripting of administration tasks and reporting using PowerShell. + Develop and maintain technical documentation describing the environment. Requirements: + BA/BS in IT, Computer Science, etc., or equivalent directly-related experience + 7+ years of experience in large Enterprise environments with 1000+ user base and 500+ servers and critical Enterprise Applications instances. + Strong understanding of overall IT Infrastructure concepts including data center, compute, storage, networking, security, identity, DR, HA, etc. + Advanced knowledge of Active Directory services, DNS, DHCP, SMB, Microsoft Exchange, and related technologies. + Expert level PowerShell experience, creating and modifying custom scripts to report and perform bulk actions on AD objects, systems, and integrated technologies. + Working experience with AD Federation Services (ADFS), Azure Active Directory, and other identity management and SSO solutions. + Experience with hybrid environments (On-premises Active Directory and Azure AD). + Experience with AD migration tools and best practices. + Extensive administration of on-premises Active Directory including capture of FSMO roles and Forest/Domain level upgrades. + Expert level technical knowledge and administration experience of Windows Server OS + Working knowledge of Windows Server authentication methods and integration of 3rd party applications (ADFS, LDAP, SAML, OAUTH, Kerberos) + Strong capabilities with MS Office/365 tools including Outlook, Excel, Word, PowerPoint, Visio, Teams, etc. Certifications: + MCSA preferred + MCSE preferred Salary Range - $98,060 - $151,008 Powered by JazzHR