IT Systems Administrator

Atlantica Sustainable Infrastructure Plc; California; On-site; USD 65,000 - 90,000; Full time

Job summary

Atlantica Sustainable Infrastructure Plc in the United States (Northern Kentucky) seeks an IT Systems Administrator to join a global IT team. The role focuses on infrastructure, server management, and end-user support.

You will deploy OS images, manage Active Directory, virtualization (VMware/Hyper-V), network security, and VoIP systems, while collaborating across locations to ensure uptime and reliability.

Qualifications

• 3+ years in a Systems Administrator/Network/Helpdesk role.
• Hands-on experience with virtualization platforms (VMware vSphere/ESXi or Hyper-V).
• Solid understanding of TCP/IP, VLANs, and basic firewall routing.
• Experience imaging with MDT, SmartDeploy or Acronis.
• Strong analytical, organizational and communication skills.
• Ability to manage competing priorities with accuracy; proactive and adaptable.

Responsibilities

• Infrastructure & server management.
• Virtualization deployment and maintenance of VMs.
• Active Directory administration (user accounts, permissions, GPOs).
• Storage management, data access controls, backups.
• Network, security & telephony: switches, firewall rules, VoIP provisioning.
• Endpoint management and OS deployment via standardized images.
• Helpdesk support (tier 1 and 2) for local and remote users.
• Troubleshoot Microsoft 365 applications and productivity tools.

Skills

Analytical thinking

Organizational skills

Communication skills

Prioritization

Education

Bachelor’s degree

Security+

Network+

CCNA

Tools

VMware vSphere/ESXi

Microsoft Hyper-V

MDT

SmartDeploy

Acronis

Active Directory

Job description

We are currently recruiting a IT Systems Administrator to join our team and contribute to key projects in a dynamic and collaborative environment. This role is part of a global team working towardcommon goals. We operate as one company, across all locations, with shared responsibility andclear accountability.

Key Responsibilities

• Infrastructure & Server Management
• Virtualization: Deploy, configure, and manage hypervisors and virtual machines (VMs).
• Directory Services: Administer the Active Directory Domain Controller, managing user accounts, permissions, and Group Policies.
• Storage: Maintain and secure file servers, ensuring proper data access controls and backups.
• Network, Security & Telephony
• Switching: Configure, monitor, and troubleshoot network switches to maintain optimal uptime.
• Firewall Administration: Implement basic rule changes, monitor logs, and maintain network security protocols.
• VoIP Systems: Manage the corporate VoIP phone system, including extension setups, call routing, and hardware provisioning.
• Endpoint Management & End-User Support
• Deployment: Create, update, and deploy standardized OS images onto company laptops and desktops.
• Helpdesk Support: Provide tier 1 and tier 2 technical assistance to local and remote end-users.
• Software Support: Troubleshoot Microsoft applications (Microsoft 365, Outlook, Teams, Word, Excel) and other productivity tools.

Education & Certifications

• Bachelor’s degree in Computer Science, Telecommunications, Business Administration, or equivalent
• Certifications: Security+, Network+, CCNA

Experience & Technical Skills

• Experience: 3+ years of experience in a Systems Administrator, Network Administrator, or advanced Helpdesk role.
• Virtualization: Hands-on experience with hypervisors (such as VMware vSphere/ESXi or Microsoft Hyper-V).
• Networking: Solid understanding of TCP/IP, VLANs, and basic firewall routing/rules.
• OS Deployment: Experience with imaging tools (like MDT, SmartDeploy, or Acronis).
• Analytical and detail-focused.
• Strong organizational and communication skills.
• Able to manage competing priorities with accuracy.
• Proactive and adaptable.

Company Culture

We believein a culture of trust, shared goals, and accountability. No matter where youare based, you are part of one team working toward the same mission.