M365/SharePoint Administrator

Cynet SystemsJersey City, NJ

About The Position

This role requires extensive experience in administering Microsoft 365 and on-premises SharePoint and Exchange environments. The administrator will be responsible for managing various workloads, ensuring system availability, security, and performance, and supporting critical operations such as patching, backups, and disaster recovery. The position involves troubleshooting complex issues, automating tasks with PowerShell, and collaborating with other IT teams.

Requirements

  • 10+ years' experience in Exchange 2019 / 2016 – On-premises and M365 Exchange, Teams, OneDrive, and SharePoint.
  • Minimum 10+ years of hands‑on experience administering Microsoft SharePoint Server (on‑premise) environments, with strong focus on SharePoint Server 2019.
  • Proven experience supporting large, enterprise‑scale SharePoint farms (single/multi‑farm, multi‑tier architecture).
  • Experience operating SharePoint in production environments with strict availability, security, and change‑management controls.
  • Strong hands‑on expertise in SharePoint farm administration, including Central Administration and service applications.
  • Experience with Site collections, sites, lists, libraries, and templates.
  • Experience with Permissions management (AD groups, SharePoint groups, inheritance, least‑privilege models).
  • Experience with User Profile Service (UPS) configuration, synchronization, and troubleshooting.
  • Experience with Managed Metadata Service, Search Service, Secure Store, State Service, and other core service applications.
  • Experience handling user access issues, permission corruption, profile resets, and access‑denied scenarios.
  • Hands‑on experience with SharePoint Server 2019 patching (Cumulative Updates / Security Updates).
  • Experience with Pre‑patch validation, patch sequencing, and post‑patch health checks.
  • Experience coordinating patching with SQL Server and Windows Server updates.
  • Experience troubleshooting post‑patch issues (search failures, timer jobs, service outages).
  • Strong hands‑on experience using SharePoint Management Shell / PowerShell for farm health checks and bulk operations.
  • Ability to write, modify, and maintain custom PowerShell scripts for operational automation.
  • Proven experience with farm‑level, web application, and site collection backups and restores.
  • Experience with SQL‑level and SharePoint native backup/restore strategies.
  • Experience supporting DR testing and recovery activities.
  • Strong working knowledge of IIS administration for SharePoint (application pools, bindings, certificates, authentication settings).
  • Strong working knowledge of Windows Server administration related to SharePoint farms.
  • Strong working knowledge of SQL Server used by SharePoint including content databases and service application databases.
  • Ability to analyze ULS logs, IIS logs, Event Viewer, and SQL errors for root cause analysis.
  • Experience supporting SharePoint incidents and outages including performance degradation and search/crawl failures.
  • Experience implementing and supporting SharePoint security baselines and hardening standards.
  • 10+ years of experience in enterprise SharePoint and Exchange environments.
  • Strong verbal and written communication skills.

Nice To Haves

  • Any Certification on M365 / Exchange / SharePoint.
  • Experience with SharePoint Server Subscription Edition or upgrade planning.
  • Exposure to SharePoint Online / Hybrid environments.
  • Experience supporting migration projects from SharePoint 2019 to SharePoint Online.
  • Ability to document operational runbooks and standard operating procedures (SOPs).
  • Familiarity with monitoring and alerting tools (APM, synthetic monitoring, log aggregation such as Splunk).

Responsibilities

  • Manage On-premises Exchange 2019 / SE and M365 workloads (EXO, SPO, Teams & one Drive).
  • Administer Exchange 2019 HA / Database Availability Group.
  • Manage Hybrid Mail flow, Edge Servers, Security and exchange patching.
  • Maintain Client connectivity and proficiency in scripting / PowerShell.
  • Perform scripted backup, restore, and cleanup tasks.
  • Coordinate with DBAs on maintenance and failovers.
  • Handle audit or compliance-driven requests related to SharePoint data access.
  • Follow enterprise change control and incident management processes.
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