Hi @Michal Sumega ,
Using PowerShell to start a VM ion Azure is possible:
https://learn.microsoft.com/en-us/powershell/module/az.compute/start-azvm?view=azps-5.7.0
Before you need to login to Azure:
https://learn.microsoft.com/en-us/powershell/azure/authenticate-azureps?view=azps-5.7.0
And the user needs the permission to start the VM.
https://stackoverflow.com/questions/23668154/allow-users-to-start-stop-particular-azure-vms/49925159
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Regards
Andreas Baumgarten