10537: Sr. Engineering Systems Administrator - Microsoft 365

Hyundai Autoever America•Irvine, CA

2d•Onsite

About The Position

Sr. Engineering Systems Administrator – M365 is a specialized technical professional responsible for the design, implementation, and support of our M365 environment. This role will serve as the technical authority across all M365 services, ensuring secure, scalable, and efficient collaboration solutions that align with business objectives.

Requirements

Bachelor's degree in IT/IS desired or equivalent practical 10+ years of experience in IT Systems Engineering required.
10 years of experience with Microsoft 365 administration and engineering.
Microsoft Certification is desired.
Awareness of ITIL- highly preferred
Core Microsoft 365 Platform Expertise which include: Microsoft 365 (overall architecture, licensing, tenant management), Exchange Online (mail flow, connectors, hybrid setup, security), SharePoint Online (sites, permissions, governance), Microsoft Teams (voice, meetings, policies, integrations), OneDrive (sync, sharing controls, retention)
Experience designing and troubleshooting Identity & Access Management: Microsoft Entra ID, Hybrid identity (AD Connect, federation, SSO), Conditional Access, MFA, Zero Trust, RBAC and least privilege design, Identity lifecycle (joiner/mover/leaver)
Deep hands-on knowledge of Security & Compliance: Microsoft Defender for Office 365, Microsoft Purview, Data Loss Prevention, Insider Risk, eDiscovery, Information Protection (sensitivity labels, encryption), Threat protection (phishing, malware, Safe Links/Attachments)
Expert Level knowledge of Messaging & Collaboration Architecture: Mail routing, SMTP relays, hybrid Exchange, Teams telephony, External sharing and B2B collaboration, Governance strategies
Deep understanding of DNS (MX, SPF, DKIM, DMARC), Certificates and TLS, Firewalls, proxies, and endpoints, Latency and service connectivity

Responsibilities

Design and implement enterprise-grade Microsoft 365 solutions, including Exchange Online, SharePoint Online, OneDrive, Microsoft Teams, and Entra ID.
Lead architecture decisions for hybrid and cloud-first environments.
Develop and maintain identity and access strategies (SSO, MFA, Conditional Access).
Manage and maintain the M365 tenant, ensuring high availability and performance.
Oversee user lifecycle management, licensing, and service configurations.
Monitor service health and proactively resolve issues.
Implement and manage security solutions including Microsoft Defender and compliance tools.
Configure Data Loss Prevention (DLP), retention policies, eDiscovery, and insider risk controls.
Ensure adherence to security standards and regulatory requirements.
Administer Entra ID (Azure AD), including Conditional Access, identity protection, and RBAC.
Manage hybrid identity integrations with on-prem Active Directory.
Implement modern authentication and certificate-based access.
Optimize Microsoft Teams, SharePoint, and OneDrive for business productivity.
Establish governance for collaboration tools, including lifecycle management and external sharing.
Support automation initiatives using Power Platform.
Lead migrations to Microsoft 365 from on-prem or third-party platforms.
Integrate M365 services with enterprise applications and SaaS platforms.
Develop automation using PowerShell and Microsoft Graph API.
Improve operational efficiency through scripting and process automation.
Serve as escalation point for complex technical issues.
Conduct root cause analysis and implement preventive solutions.
Define policies, standards, and best practices for M365 usage.
Maintain technical documentation, runbooks, and procedures.