08/23/2026 updated

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Senior Technical Application Manager | Microsoft Azure | Entra ID | Cloud & Automation

Gravenmoer, Netherlands
Only remote
Higher Professional Education (HBO) in Computer Science + MBO Computer Science (Diploma)
Gravenmoer, Netherlands
Only remote
Higher Professional Education (HBO) in Computer Science + MBO Computer Science (Diploma)

Profile attachments

Orlando_Kolf_CV_English_2026.pdf

About me

Senior Technical Application Manager with extensive experience in Azure, Entra ID, Microsoft 365, PowerShell, automation and enterprise applications. Strong background in cloud, infrastructure and technical application management. Azure Solutions Architect Expert.

Application Lifecycle ManagementApplication Performance ManagementApplication VirtualizationMicrosoft App-VTest AutomationCloud ComputingCloud EngineeringCloud TestingConfiguration ManagementMicrosoft Management ConsoleIBM Hardware Management ConsoleHP Application Lifecycle ManagementHP Systems Insight ManagerHP Service Manager SoftwareIBM Cloud ComputingEnterprise VaultIT Service ManagementMicrosoft Certified Systems Administrator (MCSA)Microsoft Certified Solution Developer (MCSD)Microsoft Certified PartnerMicrosoft Certified Solutions AssociateMicrosoft Certified Solutions ExpertMicrosoft Certified Technology SpecialistMicrosoft Certified TrainerSystem Center Operations ManagementMicrosoft ServersMicrosoft Solutions FrameworkMicrosoft SpecialistAzure SQLSystem Center Configuration ManagerMicrosoft Certified Technology AssociateMicrosoft UI AutomationSoftware Product ManagementProfessional Services AutomationAzure Active DirectoryMigration ManagerAzure Machine LearningRemote Infrastructure ManagementSAP Solution ManagerServer AdministrationSoftware Asset ManagementSoftware Configuration ManagementSoftware Quality Management (Software Quality)Test ManagementVMware ThinAppVirtual Machine ManagerWindows Management InstrumentationEnterprise Application IntegrationSymantecAzure AutomationEnterprise Application SoftwareOracle Access ManagerActive Directory Application ModeEnterprise Application PlatformVirtual System AdministratorCertified Scrum MasterCloud Platform SystemVMware Certified AssociateOracle Enterprise ManagerInformatica CloudAzure PowerShellCloudformationAzure Security CenterServiceNow IT Operations ManagementCustomer Identity Access ManagementSystem AdministrationMicrosoft Test ManagerDeployment AutomationAzure AKSAzure Data AnalyticsCloud Management PlatformsApi ManagementAzure Resource Manager
Microsoft Azure & Cloud Management
Extensive hands-on experience with Microsoft Azure, Entra ID, Microsoft 365, Intune and Microsoft Graph. Multiple Azure certifications including Azure Solutions Architect Expert and AZ-305. Active involvement in cloud migrations, lifecycle management and identity and access management.

PowerShell Automation & DevOps
Advanced PowerShell scripting for recurring administration and operational automation, including reusable automation building blocks. Experience with GitLab, CI/CD pipelines, ProGet and Ivanti Automation for automated deployment in multi-tenant environments.

Technical Application Management
Technical management of SaaS, cloud and on-premises applications within large organisations. Responsibilities include incident and change management, lifecycle management, supplier coordination, CMDB maintenance and second-line support in accordance with ITIL and ASL2 principles.

Citrix Virtualisation & EUC
Deep expertise in Citrix XenApp, XenDesktop, XenServer, NetScaler and Provisioning. Multiple Citrix certifications (CCA, CCP-V, CCA-N NetScaler) and extensive experience managing Citrix environments across various enterprise organisations.

Windows Server & Active Directory
Broad experience with Windows Server 2003/2008/2012/2016, Active Directory, Group Policy, SCCM, SCOM, MDT and WSUS. MCSA and MCITP certified across multiple Windows Server versions.

VMware Virtualisation
Practical experience with VMware ESXi, vSphere and VMware Horizon View in enterprise environments. Used for server deployment, VDI management and virtualisation infrastructure maintenance.

ITSM & Monitoring
Proficient in TOPdesk, ITIL processes, Nagios, EdgeSight and Systrack for incident management, change management and proactive monitoring of IT environments.

Application Delivery & Workspace Management
Experience with App-V, RES/Ivanti Workspace Manager, Citrix Provisioning, StoreFront and WEM for application packaging, publishing and workspace optimisation.

Backup & Storage
Hands-on experience with Commvault, Backup Exec, Arcserve and NetApp for backup configuration, media agent setup and storage management. Commvault Systems 6.0 Administration Level I and II certified.

Red Hat Linux
Completed RHCSA Red Hat Certified System Administrator course and training, providing foundational Linux system administration skills in enterprise environments.

Experience

Professional experience10+ years
Freelancer since2015

Languages

EnglishFluentDutchNative speaker

Project history

Senior Technical Application Manager | Microsoft Azure | Entra ID | Cloud & Automation

Province of Gelderland
Technical application management of SaaS, cloud and on-premises applications within a public-sector organisation of more than 1,500 employees. Responsibilities include lifecycle management, incident and change management, PowerShell automation, Microsoft 365 and Entra ID support, supplier management and contributing to process improvement and application modernisation.

DevOps Engineer / Automation Engineer

Custodial Institutions Agency (DJI)
Member of Team Automation, developing and maintaining advanced PowerShell scripts for automated deployment of building blocks in a multi-tenant environment. Implemented CI/CD pipelines in GitLab, stored scripts in GitLab for version control and integrated scripts into Ivanti Automation for standardised deployment.

Third-Line Desktop Administrator

Waternet
Administration of Microsoft and VMware Horizon environments during Windows 7 to Windows 10 migration. Resolved third-line incidents, managed VMware Horizon View, provided Microsoft 365 support, optimised applications in Ivanti/RES Workspace Manager and maintained golden images and VDI/thin clients.

Systems Administrator / Third-Line Administrator

Axians
Temporary system engineering assignment managing Microsoft and Citrix environments across diverse customer environments. Executed Azure changes, maintained MDT/SCCM, managed Citrix XenDesktop 7.15 LTSR and XenApp 6.5, created PowerShell scripts and performed NetScaler firmware upgrades.

Citrix Administrator / Third-Line Administrator

DICTU - Ministry of Economic Affairs
Managed Citrix infrastructure across eight legacy environments, executed changes and participated in projects. Handled Citrix incidents, maintained MDT, deployed Windows servers and VDI, renewed certificates on NetScaler MPX appliances, participated in data-centre migration and managed XenApp 7.15 LTSR.

Citrix Specialist

Mediq
Contract assignment managing Citrix infrastructure with approximately 45 provisioned virtual Citrix servers serving around 1,200 users. Handled incidents and changes through TOPdesk, packaged and published applications, responded to monitoring alerts and deployed monthly updates to the golden image.

System Engineer

Detron
Temporary assignment to deliver a backup environment for a customer on VMware ESXi using Windows Server 2008 and Commvault. Built and configured Windows Server on VMware ESXi, installed Commvault as media agent, connected a tape library and adjusted Windows Group Policies.

Citrix Administrator

DPD
Contract assignment to reduce an incident backlog. Resolved second- and third-line incidents, created and modified application packages delivered through RES Workspace Manager, published applications with RES Extender and responded to Nagios alerts.

Systems Administrator

Municipality of Oud-Beijerland (via Peopleware)
Temporary cover for two absent systems administrators. Performed all-round systems administration in a Windows/Citrix XenApp environment, managed the Citrix server environment, resolved second- and third-line incidents and packaged App-V 4.6 applications.

Citrix Administrator

Municipality of Rotterdam (via Peopleware)
Temporary assignment within the Delivery team of the Citrix department supporting approximately 300 physical servers. Maintained and optimised Citrix XenApp 5 and RES PowerFuse 2010 environment, resolved Citrix-related disruptions using EdgeSight 5.3 and contributed to analysis of Citrix Provisioning opportunities.

Remote Administrator

Issue Technology
Remote administration role across multiple customer environments. Managed Citrix server environments and Windows servers, resolved second- and third-line issues, managed Cisco routers and switches, performed proactive and reactive network administration and resolved backup issues using Backup Exec 2012 and Arcserve.

System Engineer

Dari
System Engineer working in small and large IT environments.

System Engineer

Crystal IT
System Engineer managing an environment with 20 servers, nearly 2,000 users and 140 3Com routers.

Junior Citrix Implementation Specialist

Vereniging Eigen Huis
Contract assignment as Junior Citrix Implementation Specialist.

Workplace Automation Specialist - RBAC Project

ING Bank
Contract assignment via Crystal as Workplace Automation Specialist on the RBAC Project.

Second-Line Support Engineer

Rivierduinen
Contract assignment via Crystal as Second-Line Support Engineer.

Various IT roles

Sylis Nederland
Various IT roles at Sylis Nederland.

Certificates

Microsoft Certified: Azure Fundamentals AZ-900

Microsoft

2023

Azure Solutions Architect Expert

Microsoft

2022

Designing MS Azure Infrastructure Solutions AZ-305

Microsoft

2022

Microsoft Azure Architect Technologies AZ-303

Microsoft

2021

MCSE: Core Infrastructure

Microsoft

2020

Citrix Certified Associate - Networking (CCA - N)

Citrix

2016

Citrix Certified Associate Virtualization (CCA-V)

Citrix

2016

MCSA: Windows Server 2016

Microsoft

2016

MCSA: Windows Server 2008

Microsoft

2011

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