Mårten Sandeberg is an experienced Solutions Architect and developer with 11+ years delivering cloud-native web, commerce and collaboration platforms across Azure, Office 365, Optimizely and Umbraco. He blends hands-on development (.NET, Entity Framework, Docker, Node.js, TypeScript, React) with leadership of cross-functional teams, having served as Head of Tech, lead developer and consultant for large public and enterprise organisations. A longtime SharePoint and Microsoft 365 practitioner, he has contributed bug fixes and usability enhancements to prominent PnP projects, improving provisioning, authentication and large-library handling. Mårten excels at translating complex requirements into sustainable, team-driven solutions and has repeatedly guided migrations and platform builds for agencies and major brands. Based in Stockholm, he pairs systems-level architecture with pragmatic front-end and integration know-how, and often steps into mentoring and technical project leadership roles beyond pure delivery. An understated strength is his track record of adding small but impactful improvements to open-source tooling that smooth real-world Microsoft 365 integrations.
11 years of coding experience
21 years of employment as a software developer
Master of Science Computer and System Sciences, Master of Science Computer and System Sciences at Stockholm University
Contributions:30 commits, 12 PRs, 3 comments in 1 year 4 months
Contributions summary:Mårten primarily contributed to the SharePoint PnP PowerShell CmdLets, adding and modifying existing cmdlets. These changes included adding a `ReIndexList` cmdlet, implementing browser-based login functionality, and integrating cross-site support within the provider. Moreover, the user made several fixes and enhancements to the provider, especially related to the `SPOProvider`. They focused on improving the robustness and functionality of the PowerShell module, including enhancements for handling large document libraries and addressing issues within the provider.
Microsoft 365 Dev PnP Core component (.NET) targeted for increasing developer productivity with CSOM based solutions.
Role in this project:
Back-end Developer
Contributions:11 commits, 12 PRs, 3 comments in 1 year 7 months
Contributions summary:Mårten primarily focused on bug fixes and enhancements to the core functionality of the .NET-based core component. Their contributions involved addressing issues related to provisioning, authentication, and file handling within the SharePoint environment. They also updated dependencies and introduced a browser-based login method, indicating a focus on improving the application's integration and usability within the Microsoft 365 ecosystem.
dotnetcore-componentpnpdevproductivity
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Mårten Sandeberg - Solutions Architect at Sveaskog