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Markus StollMS

Markus Stoll

MICROSOFT 365 SYSTEM ENGINEER

€650/day
Bielefeld, DE
3-7 years
Microsoft365
Microsoft Intune
Microsoft Defender
Microsoft Entra ID
Active Directory

Average response time: 1 hour

Freelancer profile translated to English.
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About Markus

Independent Microsoft 365 / Intune Consultant focusing on Endpoint Management, Windows Autopilot, Entra ID, Exchange Online, Conditional Access, and Modern Workplace.

I support companies in the implementation, operation, optimization, and security of modern Microsoft cloud and hybrid environments. This includes Intune rollouts, tenant checks, Microsoft Defender, Secure Score, Exchange/Exchange Online topics, as well as Active Directory, DNS, and DHCP-related infrastructure topics.

My working method is structured, technically sound, and implementation-oriented – with a focus on stable deployments, secure configurations, clear processes, and clean documentation.
Chemicals
Digital and IT Services
Public Sector
Publishing
Software Publishing

  • German

    Native or bilingual

  • English

    Conversational

Can work on-site
Bielefeld (up to 50km), Hannover (up to 50km), Dortmund (up to 50km)

Experience

  • Mittelständisches Unternehmen – Chemie-/Pharmaumfeld
    MICROSOFT 365 SYSTEM ENGINEER
    CHEMICAL
    February 2024 - February 2026 (2 years)
    Bielefeld, Germany
    FILE SERVER MIGRATION TO SHAREPOINT ONLINE
    • Planning and implementation of the migration in the medium TB range (~500 users)
    • Structuring of permissions and data storage
    • Conducting training sessions and user support
    • Adapting existing work processes to M365

    EXCHANGE HYBRID MIGRATION AND CLEANUP
    • Migration of mailboxes from On-Premises to Exchange Online
    • Error analysis and troubleshooting in hybrid scenarios
    • Cleanup and rollback of the On-Premises Exchange infrastructure
    • Implementation of mail flow and transport rules
    • • Management of shared mailboxes and dynamic distribution groups

    IPAD ROLLOUT VIA INTUNE / APPLE BUSINESS MANAGER
    • Conception and implementation of a deployment process for iOS devices
    • Integration of Apple Business Manager
    • Coordination with external service providers
    • Execution and scaling of the rollout

    AUTOMATION AND POWERSHELL
    • Development of scripts for user creation and AD/Entra synchronization
    • Automated detection and correction of faulty Intune objects
    • Creation of internal tools (including tenant checks, GUI-based scripts)
    • Reduction of manual administration effort
    Client Management Microsoft Intune Microsoft365 Powershell Microsoft Teams
  • IT-Dienstleister
    SYSTEM ENGINEER MICROSOFT 365
    DIGITAL AND IT
    July 2021 - February 2024 (2 years and 7 months)
    Bielefeld, Germany
    MICROSOFT 365 AND INTUNE
    · Setup of Microsoft 365 tenants for customers
    · Introduction of Microsoft Intune as the leading MDM/Endpoint Management system
    · Connection and management of Windows, iOS, and macOS endpoints via Intune
    · Conception and implementation of device management, compliance, and configuration policies
    · Support for customers in the implementation, operation, and optimization of modern Microsoft 365 environments

    CONDITIONAL ACCESS AND SECURITY
    · Setup and expansion of Conditional Access policies
    · Coordination and explanation of Conditional Access concepts with customers
    · Introduction and configuration of Microsoft Defender for customers
    · Improvement of Microsoft Secure Score within the scope of Managed Services
    · Execution of tenant checks to assess risks, potentials, and misconfigurations
    · Securing Microsoft 365 tenants according to best practice guidelines

    ENTRA ID CONNECT / HYBRID IDENTITY
    · Update and maintenance of Azure AD Connect / Entra ID Connect
    · Error analysis and troubleshooting in hybrid identity environments
    · Implementation of best practice configurations for synchronization and identity matching

    ACTIVE DIRECTORY / DNS / DHCP
    · Replacement and migration of domain controllers
    · Modernization of DNS and DHCP structures according to current best practices
    · Adjustment of domain and forest functional levels
    · Error analysis and stabilization of existing Active Directory infrastructures
    Microsoft Intune Microsoft365 Active Directory Microsoft Entra ID IT-Security
  • IT-Systemhaus / Managed Services Provider
    SYSTEM ENGINEER
    DIGITAL AND IT
    August 2019 - June 2021 (1 year and 10 months)
    Herford, Germany
    CLIENT MANAGEMENT AND SOFTWARE ROLLOUT
    · Selection and evaluation of software solutions for internal requirements
    · Coordination with the DSM team for application packaging
    · Execution of software rollouts on client systems
    · Setup, configuration, and deployment of notebooks via DSM
    · Support in the operation and standardization of client environments

    EXCHANGE / EXCHANGE ONLINE / MICROSOFT 365
    · Processing of change requests in Exchange and Exchange Online
    · Adjustment of mailboxes, permissions, and distribution structures
    · Support of administrative tasks in Microsoft 365 environments

    E-MAIL SIGNATURES AND CUSTOMER CONFIGURATIONS
    · Configuration of email signature software for customers
    · Customization of central signature rules and templates
    · Support with rollout, operation, and error analysis

    HARDWARE / INVENTORY / IT OPERATIONS
    · Management of hardware inventory and maintenance of stock data
    · Selection of suitable client hardware and peripherals
    · Initiation of hardware orders through sales
    · Preparation, testing, and deployment of end devices
    · Execution of mandatory VDE tests on IT equipment
    Client Management Microsoft365 Microsoft Exchange Systemadministration

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Education

  • Fachinformatiker für Systemintegration
    Carl-Severing-Berufskolleg für Metall- und Elektrotechnik
    2019
    Ausbildung mit Schwerpunkt auf Planung, Aufbau und Betrieb von IT-Infrastrukturen. Inhalte waren unter anderem Windows-Server- und Client-Systeme, Netzwerktechnik, Active Directory, Benutzer- und Rechteverwaltung, IT-Sicherheit, Systemadministration, Fehleranalyse sowie die Betreuung und Dokumentation technischer IT-Umgebungen.
  • Staatlich geprüfter Informationstechnischer Assistent
    Carl-Severing-Berufskolleg für Metall- und Elektrotechnik
    2017
    Ausbildung mit Schwerpunkt Informatik, Programmierung, Netzwerktechnik, Datenbanken, IT-Systeme und informationstechnische Anwendungen.
Check out Markus's education

Certifications

  • MS-102 - Microsoft 365 Certified: Administrator Expert
    Microsoft Corporation
    Cloud Security Microsoft Entra ID IAM Microsoft Defender Identity and Access Management MFA Conditional Access Microsoft365
  • MS-203 - Microsoft 365 Certified: Messaging Administrator Associate
    Microsoft Corporation
    E-Mail IT-Infrastruktur Microsoft Exchange DNS Microsoft Azure Microsoft Exchange Server Microsoft365 IT Support Exchange Online Active Directory
Markus's certifications are only visible to Malt Community members

Skill set

Cloud Platforms and Infrastructure
IT Strategy
IT Architecture
IT Service Management
System Integration

Categories