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# SharePoint Developer / Administrator (SPFx, React, .NET Core, M365) - 10+ Yrs Exp

- **Company:** ACS -
- **Location:** New York, NY, United States
- **Experience:** Expert
- **Contract:** Temporary to permanent
- **Skills:** ASP.NET, JavaScript (Programming Language), .NET Framework, Microsoft Windows, Application Programming Interfaces (APIs), HTML5, C Sharp (Programming Language), Cascading Style Sheets (CSS), Code Review, Continuous Integration, Data Security, Relational Databases, Entity Framework, Github, Metadata, Microsoft SQL Server, Model View Controller (MVC), Windows PowerShell, Azure Active Directory, Microsoft SharePoint, Systems Integration, TypeScript, Web Content Accessibility Guidelines, .NET Core, Microsoft Power Automate, Office365, ReactJS, Git, Integration Tests, Information Technology, Performance Monitor, Restful APIs, Serverless Computing, Powerapps, Web Api
- **Published:** November 9, 2026
- **Apply:** https://www.careerjet.com/jobad/us0b98efd5af699e53930825096e4085e0

## About the Role

* Bachelor's degree in Computer Science, IT or a related field (or equivalent experience).
 * 10+ years of SharePoint administration and development experience (SharePoint Online and/or SharePoint 2016/2019).
 * 7+ years of professional experience with C# and .NET / ASP.NET Core.
 * Hands-on experience with SPFx, React and TypeScript.
 * Strong PowerShell skills, including PnP PowerShell.
 * Solid knowledge of SQL Server and relational database design.
 * Experience with Microsoft 365 administration (Entra ID/Azure AD, Teams, OneDrive, Microsoft Graph).
 * Familiarity with Git and CI/CD pipelines.
 * Good analytical, troubleshooting and communication skills.

## Description

* Administer SharePoint Online and/or on-premises SharePoint Server: site collections, permissions, storage, tenant settings, governance, information architecture, metadata and content types.
 * Monitor performance, availability and security; handle backup, restore, patching, upgrades and migrations (on-prem to SharePoint Online).
 * Automate administration with PowerShell and PnP PowerShell; support access reviews, sensitivity labels, DLP and audit requirements.
 * Design, build and maintain the corporate intranet portal (communication sites, hub sites, news, navigation, search), including custom SPFx web parts and extensions in React and TypeScript.
 * Create page templates, branding and accessible (WCAG) responsive layouts, and set up content workflows for non-technical editors.
 * Develop back-end services, REST APIs and integrations with C#, .NET Core and ASP.NET Core (MVC / Web API), and front ends with JavaScript/TypeScript, React, HTML5 and CSS3.
 * Design and optimize SQL Server databases and data access (Entity Framework Core, Dapper).
 * Integrate SharePoint with other systems using Microsoft Graph API, SharePoint REST, Azure Functions and Power Platform (Power Automate, Power Apps).
 * Write unit and integration tests, take part in code reviews and follow CI/CD practices (GitHub Actions).