Active Directory / Windows Engineer

Location: Irvine, CA

• 10+ years in enterprise messaging and directory services (Microsoft-focused).
• Proven experience in Exchange Online, Exchange Hybrid, and Active Directory / Azure AD.
• Deep knowledge of M365 tenant configurations, mail flow routing, and domain migration.
• Expertise in identity synchronization (AD Connect, Entra ID) and conditional access.
• Understanding of DNS, SPF, DKIM, DMARC, and MX records.
• Experience with Mimecast or similar email security gateways.
• Familiarity with PowerShell scripting for automation and configuration discovery.
• 10+ years’ experience in large Enterprise environments with thousands of users and hundreds of servers and critical Enterprise Applications.
• Strong understanding of overall IT Infrastructure concepts including data center, compute, storage, networking, security, identity, DR, HA, etc.
• Strong capabilities with MS Office/365 tools including Outlook, Excel, Word, Powerpoint, Visio, Teams, etc.
• Manage and maintain Active Directory leveraging scripts and automation wherever applicable.
• Supporting and adhering to change management process.
• Collaboration with network, InfoSec, storage, data center, vendors, and other stakeholders in support of the running environment and project initiatives.
• Participation in triage and troubleshooting for all responsible technologies.
• Develop and maintain technical documentation describing the environment.

• Strong analytical and documentation abilities.
• Excellent communication skills to bridge technical and business audiences.
• Capable of leading technical discovery workshops with multiple stakeholders.
• Highly organized, detail-oriented, and capable of managing complex dependencies.

• Microsoft Certified: Messaging Administrator Associate or Enterprise Administrator Expert.
• Prior experience with tenant-to-tenant migrations or domain consolidation projects.
• Exposure to international domain management and multi-region M365 environments.
• Knowledge/Experience with VMware a plus
• Experience with email compliance and retention policies under global regulatory frameworks (e.g., KSOX, GDPR