IT Systems Administrator (OnPrem)

The Cloud & Infrastructure department is responsible for the core technology backbone that powers our SCADA and DataLayer ecosystem. We design build and operate the foundational platforms that keep thousands of renewable plants reliable secure and scalable.

Our team covers the full spectrum of infrastructurefrom cloud services to onpremise systemsbut this role will join the OnPremise Engineering group the unit that ensures the performance availability and automation of the platforms deployed physically across our global fleet of sites.

About the role:

We are looking for a Senior SRE / DevOps / Systems Engineer to help evolve and modernize the onpremise infrastructure powering Horizon our SCADA and DataLayer ecosystem. Most of our systems run on physical and virtual servers hosted inhouse and we are actively transitioning them toward InfrastructureasCode automated provisioning and new hardware platforms.

Your primary responsibility will be to maintain and improve our current infrastructure redefine our automated SCADA deployment pipeline and support the reliability of our internal DataLayer services. The role is highly handson with a strong focus on OS lifecycle virtualization observability deployment tooling and hardware/firmware management.

This is not a cloudnative or Kubernetesfocused SRE position. While we use some cloud services the core of your work revolves around Windows Server and Linux infrastructure PowerShelldriven automation HyperV and Proxmox virtualization and the modernization of our deployment workflows.

Key Responsibilities:

Infrastructure & Systems Engineering

• Maintain and optimize our onpremise server fleet including hardware OS lifecycle storage and networking.
• Lead the transition of legacy servers and configurations to InfrastructureasCode (primarily Puppet)
• Manage server lifecycle thorugh automated deployment. Including BIOS provisioning firmware baselines driver automation and OEM Activation (OA 2.7) processes.
• Automate provisioning via PowerShell including unattended installations configuration baselines and compliance checks.

SCADA Deployment Automation

• Redesign and maintain the automated deployment system for our SCADA solution.
• Develop CI/CD pipelines using TFS/Azure DevOps Server and Git repositories.
• Build and maintain PowerShellbased deployment scripts for OS bootstrapping configuration DataLayer setup and service deployment.
• Ensure deployments are reproducible traceable and suitable for largescale rollouts.
• Virtualization & OnPrem Platforms
• Operate and maintain virtualization environments based on:
• HyperV
• Proxmox (KVM-based but no direct KVM admin required)
• Create and maintain VM templates golden images provisioning flows and automation pipelines.

Observability & Monitoring

• Maintain and extend monitoring for OS DataLayer and SCADA services using tools such as:
• Grafana
• Prometheus/WMI exporters
• Native Windows/Linux monitoring integrations
• Improve alerting dashboards and metrics for operational reliability (no ELK stack required).

DataLayer & Internal Tools

• Support and maintain the reliability of our DataLayer provider (in-house product).
• Develop small supporting tools or utilities in PowerShell (preferred) and optionally in Python Go or C when relevant.

Lifecycle Security & Reliability

• Maintain OS hardening patching and security baselines.
• Document operational procedures deployment workflows runbooks and troubleshooting guides.
• Participate in incident response and reliability improvements.

#LI-Hybrid