Senior System Engineer (Cloud & Security)

Experienced Senior System Administrator with more than 15 years of expertise in managing complex IT infrastructures. Strong focus on Windows, Linux and virtualization environments as well as hybrid cloud architectures. Skilled in Microsoft 365 administration, identity and access management and security policies. Proficient in automation, monitoring and ensuring stable enterprise operations. Offers extensive knowledge in network, firewall and server environments.

Operation and optimization of hybrid Microsoft 365 environments including Entra ID, Exchange, Teams and Conditional Access. Administration and enhancement of Windows and Linux infrastructures with high system availability. Setup, operation and migration of virtualization environments using VMware, Hyper-V and Proxmox. Automation of administrative processes using PowerShell, Bash and DevOps tools such as Ansible, Jenkins and Terraform. Management of more than 100 servers in virtualized enterprise environments. Implementation of security measures, network design and firewall administration. Deployment and operation of server landscapes, Exchange and SharePoint environments as well as various Linux distributions.