Tobias Strenk
Head of Infrastructure & Security
Tobias Strenk brings over 25 years of diverse professional experience – including roles as an officer in the German Armed Forces, in financial services, sales, and business development. For more than a decade, he has been successfully working in IT and has since established himself as an expert in Microsoft 365, cybersecurity, and cloud architectures.
He combines technical expertise with strategic thinking and stands out for his initiative, resilience, and strong problem-solving skills. Whether it's managing complex hybrid infrastructures, implementing modern security and device strategies with Intune, Entra ID, Purview, and Defender, or optimizing collaboration with Microsoft Teams, SharePoint Online, and Exchange – Tobias Strenk sees solutions through to the end and implements them with clarity and efficiency.
Since early 2022, he has been with Tuleva AG, where he currently leads the Infrastructure & Security department, drawing on his extensive leadership and project experience. His focus lies on Microsoft Cloud IT architecture, operational M365 administration, and building secure, scalable system landscapes for clients across various industries – including automotive, renewable energy, finance, logistics, aviation, real estate, publishing, the military, and nonprofit organizations.
Key Focus Areas:
Microsoft 365 Administration
Comprehensive support for companies in setting up, further developing, and operating their system landscape.
IT-Security
Securing tenants through modern identity and device management, security concepts, and policy consulting – including Entra ID, Intune, and Purview.
Consulting
Support with strategic IT decisions, selecting suitable solutions, and developing sustainable architecture and migration concepts.
Support
Technical support at all levels (1st to 3rd line) – from fast everyday issue resolution to in-depth problem analysis in complex Microsoft 365 environments.
Selected Projects:
Microsoft 365 Rollout & Teams Telephony
Implementation of a Microsoft 365 environment and Teams telephony for a nonprofit foundation. Setup and administration of hybrid IT architectures, license consulting, tenant configuration, and end-user training.
[Entra ID, Exchange Online, KerioConnect Migration, Microsoft Admin Center, Microsoft Graph, Microsoft Intune, Microsoft Security, Microsoft Teams, PowerShell, SharePoint Online]
IT Infrastructure Modernization & M365 Services
Modernization of IT infrastructure and cloud services for a real estate company. Includes Intune configuration, securing the M365 tenant, comprehensive support, and conducting workshops on Copilot and Microsoft Apps.
[Cloud Backup, Entra ID, Exchange Online, ITIL®4, MailStore, Microsoft Admin Center, Microsoft Azure, Microsoft Copilot, Microsoft Graph, Microsoft Intune, Microsoft Security, Microsoft Teams, NAS Backup, PowerShell, SharePoint Online]
Microsoft 365 Administration & Support
Provisioning and management of Microsoft 365 tenants for a company in the renewable energy and semiconductor production sector.
[Entra ID, Microsoft Admin Center, Microsoft Security, Microsoft Teams, SharePoint Online]
Microsoft 365 Setup & Migration
For a maritime shipping company, full Microsoft 365 tenant migration and setup were performed, including licensing consulting and hybrid architecture implementation.
[Entra ID, Exchange Online, MailStore, Migration On-Premises to Cloud, Migration Tobit® David® to Exchange Online, Microsoft Admin Center, Microsoft Security, Microsoft Teams, Power Automate, PowerShell, SharePoint Online]
Carve-Out Assessment & Microsoft 365 Tenant Review
In the context of a technical M&A process in corporate finance, a Microsoft 365 carve-out was analyzed, including recommendations for actions, security settings, and configurations.
[Entra ID, Exchange Online, Device Management, Microsoft Admin Center, Microsoft Security, Microsoft Teams, SharePoint Online]
Microsoft 365 Introduction Strategy
Provided strategic guidance for Microsoft 365 rollout within the maritime sector, including licensing analysis and migration roadmap development.
[Entra ID, Exchange Online, Device Management, Migration Tobit® David® to Exchange Online, Microsoft Admin Center, Security, Microsoft Teams, Network, SharePoint Online]
Microsoft 365 Introduction
Introduced Microsoft 365 within a premium hospitality company, including tenant migration, administration, and technical support.
[Entra ID, Exchange Online, Migration On-Premises to Cloud, Microsoft Admin Center, Security, Microsoft Teams, PowerShell, SharePoint Online]
SharePoint Migration & SPFx Development with M365 Integration
Designed sustainable IT infrastructure modernization solutions for a publishing company. Tasks included SharePoint and file storage migration, SPFx app development, implementation of role models, and user training.
[Entra ID, Exchange OnPrem/Online, HTML, Microsoft Admin Center, Microsoft Security, Microsoft Teams, Microsoft Visual Studio Code, Node.js, Office-UI Fabric, PowerShell, React, SCSS, SharePoint Online, SPFx, TypeScript, Visual Studio Code]
SharePoint Support & Modern Web Component Development
Provided 1st to 3rd level support for SharePoint Online in the aviation industry, developed bilingual sites, and created and maintained SPFx components with integrated Azure logic.
[Azure DevOps, Azure Functions, Azure Logic Apps, C#, HTML, Microsoft Visual Studio Code, Node.js, Office-UI Fabric, PowerShell (PnP), React, SCSS, SharePoint Online, SPFx, TypeScript, Visual Studio, Visual Studio Code]
Email Migration & Microsoft 365 Support
Within the automotive industry, email systems were migrated to Microsoft Cloud. M365 tenant was configured and L1–L3 support provided.
[Microsoft Security, Entra ID, Microsoft Admin Center, Exchange Online, SharePoint Online, Microsoft Teams, PowerShell, Email Migration to Cloud]
IT-Manager
Responsible for leading, planning, and coordinating all IT-related activities for a company in the real estate sector, including defining IT-driven business processes and designing the architecture of required applications and their environments. Provided and supported M365 workloads and managed the migration to M365.
[M365 Apps, IT-Management, IT-Service-Management, IT-Strategie, Leadership]
Selected Projects:
Microsoft 365 Rollout & Teams Telephony
Rollout of a Microsoft 365 environment for a non-profit foundation, with a focus on Teams telephony. Setup and administration of hybrid cloud architectures, licensing consulting, tenant configuration, and end-user training.
[Entra ID, Exchange Online, KerioConnect Migration, Microsoft Admin Center, Microsoft Graph, Microsoft Intune, Microsoft Security, Microsoft Teams, PowerShell, SharePoint Online]
IT Infrastructure Modernization & M365 Services
In the real estate sector, modernization of the IT infrastructure and cloud services was carried out. Included Intune rollout, tenant-level security, comprehensive M365 support, and training on Copilot and Microsoft Apps.
[Cloud Backup, Entra ID, Exchange Online, ITIL®4, MailStore, Microsoft Admin Center, Microsoft Azure, Microsoft Copilot, Microsoft Graph, Microsoft Intune, Microsoft Security, Microsoft Teams, NAS Backup, PowerShell, SharePoint Online]
Microsoft 365 Administration & Support
In the renewable energy and semiconductor industry, Microsoft 365 tenants were provisioned and managed. Provided L1/L2/L3 support and tenant implementation.
[Entra ID, Microsoft Admin Center, Microsoft Security, Microsoft Teams, SharePoint Online]
Microsoft 365 Setup & Migration
For a maritime shipping company, full Microsoft 365 tenant migration and setup were performed, including licensing consulting and hybrid architecture implementation.
[Entra ID, Exchange Online, MailStore, Migration On-Premises to Cloud, Migration Tobit® David® to Exchange Online, Microsoft Admin Center, Microsoft Security, Microsoft Teams, Power Automate, PowerShell, SharePoint Online]
Carve-Out Assessment & Microsoft 365 Tenant Review
During an M&A project in the corporate finance sector, a Microsoft 365 carve-out was analyzed. Covered licensing, tenant migration planning, and security configurations.
[Entra ID, Exchange Online, Device Management, Microsoft Admin Center, Microsoft Security, Microsoft Teams, SharePoint Online]
Microsoft 365 Introduction Strategy
Provided strategic guidance for Microsoft 365 rollout within the maritime sector, including licensing analysis and migration roadmap development.
[Entra ID, Exchange Online, Device Management, Migration Tobit® David® to Exchange Online, Microsoft Admin Center, Security, Microsoft Teams, Network, SharePoint Online]
Microsoft 365 Introduction
Introduced Microsoft 365 within a premium hospitality company, including tenant migration, administration, and technical support.
[Entra ID, Exchange Online, Migration On-Premises to Cloud, Microsoft Admin Center, Security, Microsoft Teams, PowerShell, SharePoint Online]
SharePoint Migration & SPFx Development with M365 Integration
For a publishing company, the Microsoft 365 tenant and Exchange infrastructure were consolidated. SharePoint data was migrated and SPFx components were developed. Included permissions design, domain service setup, and training.
[Entra ID, Exchange OnPrem/Online, HTML, Microsoft Admin Center, Microsoft Security, Microsoft Teams, Microsoft Visual Studio Code, Node.js, Office-UI Fabric, PowerShell, React, SCSS, SharePoint Online, SPFx, TypeScript, Visual Studio Code]
SharePoint Support & Modern Web Component Development
For an IT services provider, SharePoint Online support (1st–3rd level) was delivered. Developed bilingual SharePoint sites and modern SPFx web components with Azure logic.
[Azure DevOps, Azure Functions, Azure Logic Apps, C#, HTML, Microsoft Visual Studio Code, Node.js, Office-UI Fabric, PowerShell (PnP), React, SCSS, SharePoint Online, SPFx, TypeScript, Visual Studio, Visual Studio Code]
Email Migration & Microsoft 365 Support
Within the automotive industry, email systems were migrated to Microsoft Cloud. M365 tenant was configured and L1–L3 support provided.
[Microsoft Security, Entra ID, Microsoft Admin Center, Exchange Online, SharePoint Online, Microsoft Teams, PowerShell, Email Migration to Cloud]
IT-Manager
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