Description :

We are seeking a SharePoint & OneDrive (Microsoft Graph) Integration Engineer with 5+ years of experience to build and maintain reliable backend integrations with SharePoint Online and OneDrive for Business using Microsoft Graph APIs.

The role focuses on file management, synchronization, and large-scale document handling in enterprise Microsoft 365 environments.

The ideal candidate has strong backend engineering skills and hands-on experience with SharePoint, OneDrive, and Microsoft Graphbased integrations.

Key Responsibilities :

- Design, develop, and maintain backend services integrating with SharePoint Online and OneDrive via Microsoft Graph APIs.

- Implement file upload, download, synchronization, versioning, and change-tracking workflows.

- Build production-grade integrations with robust handling of throttling, retries, idempotency, and partial failures.

- Develop and optimize large file upload and download mechanisms, including resumable uploads and conflict resolution.

- Manage SharePoint and OneDrive document libraries, ensuring correct file lifecycle handling (locking, co-authoring, sync behavior).

- Troubleshoot and resolve tenant-specific Microsoft 365 issues, including file access, permission, and sync-related problems.

- Implement structured logging, diagnostics, and monitoring to ensure reliability and supportability.

- Collaborate with cross-functional teams to translate business requirements into scalable technical solutions.

Required Skills & Experience :

- Deep hands-on experience with Microsoft Graph, especially Files / Drives APIs for SharePoint and OneDrive.

- Strong understanding of SharePoint Online / OneDrive (ODSP) document libraries and file lifecycle behaviors.

- Proven experience building reliable, production-grade Graph integrations with solid error handling and diagnostics.

- Experience implementing large file transfer patterns, including upload sessions and resumable uploads.

- Strong backend/API development experience using C#, TypeScript, or similar, in cloud-based environments.

- Ability to troubleshoot tenant-specific Microsoft 365 edge cases and customer-reported file access or sync issues.

- Familiarity with Azure AD / Entra ID OAuth, including delegated and app-only access models.