[Remote] Sr. Microsoft 365 Administrator (L2/L3)

Note: The job is a remote job and is open to candidates in USA. iSoftStone, Inc. is seeking a Senior M365 System Administrator (L2/L3) to join our Team. This role involves supporting the design, implementation, and ongoing operations of enterprise Microsoft 365 environments, focusing on solution architecture, system engineering, and advanced administration.ResponsibilitiesLead solution design and technical architecture for Microsoft 365 and related servicesTranslate business and security requirements into scalable, secure, and supportable solutionsDefine architecture patterns across: Identity & access (SSO, Conditional Access, Zero Trust), Endpoint management (Intune / UEM), Collaboration & messaging (Exchange, Teams, SharePoint)Produce high-level and low-level design (HLD/LLD) documentationEvaluate new features and technologies, and provide design recommendations and roadmapsEnsure solutions align with enterprise standards for security, compliance, and performanceProvide L2/L3 support for Microsoft 365 services, including escalation handling and root cause analysisAdminister: Exchange Online, Teams, SharePoint Online, OneDrive, Azure AD / Entra IDTroubleshoot complex issues across identity, messaging, collaboration, and endpoint environmentsAdminister Microsoft Intune and UEM platformsManage device compliance, configuration profiles, and application deploymentOperate and optimize EDR solutions such as Microsoft Defender for EndpointDesign and implement endpoint security baselines and compliance policiesSupport enterprise endpoint strategy across Windows, macOS, and mobile devicesDesign and implement SSO, MFA, and Conditional Access architecturesIntegrate enterprise applications using SAML, OAuth, and OpenID ConnectSupport hybrid identity (on-prem AD + cloud) and identity lifecycle managementContribute to identity governance and Zero Trust initiativesDevelop and maintain automation using PowerShellBuild reusable scripts and tooling for provisioning, reporting, and complianceImprove operational efficiency through automation and standardizationTroubleshoot and design solutions related to DNS, authentication, and connectivityWork with network teams on secure access (proxy, firewall, conditional access integration)Ensure reliable service integration across cloud and on-prem environmentsImplement Microsoft 365 security controls and policies aligned with best practicesSupport audit, compliance, and eDiscovery requirementsCollaborate with security teams on monitoring, alerting, and incident responseSkillsFive to eight+ years of Microsoft 365 administration and engineering experienceProven experience in solution design/architecture for Microsoft 365 environmentsStrong hands-on expertise in: Microsoft 365 core services (Exchange Online, Teams, SharePoint)Intune / UEM / EDRAzure AD (Entra ID), SSO, Conditional AccessAdvanced PowerShell scripting skillsSolid understanding of: Identity protocols (SAML, OAuth, OpenID Connect)DNS, networking, and security fundamentalsExperience with hybrid environments (on-prem and cloud)Strong architecture thinking with hands-on execution abilityAbility to translate requirements into practical technical designsStrong troubleshooting and problem-solving skillsEffective communication with cross-functional stakeholdersProactive, automation-driven mindsetAbility to design solutions and contribute to architecture decisions, implement and optimize systems end-to-end, and provide advanced L2/L3 operational supportMicrosoft certifications (MS-102, SC-300, MD-102)Experience with Zero Trust architecture designFamiliarity with SIEM tools such as Microsoft SentinelExperience in enterprise or global environmentsBenefitsW2 CONTRACT POSITION (JUNE 2026 THROUGH FEBRUARY 2027)Company OverviewiSoftStone is a global IT service and consulting company that creates value and drives success through technology solutions, service excellence, and digital innovation. It was founded in 2005, and is headquartered in Bellevue, Washington, USA, with a workforce of 10001+ employees. Its website is https://www.isoftstoneinc.com.