IT Systems Administrator

Role overview

Administer and improve enterprise infrastructure spanning cloud services, SaaS applications, and on premises systems. The work combines Microsoft and AWS operations with identity management, security, automation, and support for business critical applications in a regulated environment. The role includes technical guidance, documentation, and participation in changes and deployments.

Responsibilities

- Install, configure, maintain, and optimize infrastructure and applications across AWS, SaaS, and on premises environments. - Administer Windows Server, Active Directory, Entra ID, Microsoft 365, DNS, DHCP, file services, identity, and single sign on integrations. - Build and maintain infrastructure automation and Infrastructure as Code using tools such as Terraform, Ansible, CloudFormation, PowerShell, or similar. - Monitor availability, performance, and security; troubleshoot cloud, identity, infrastructure, and application problems. - Maintain security controls, patching, vulnerability remediation, and least privilege access. - Support enterprise application operations, integrations, upgrades, implementations, migrations, and production changes with business teams and vendors. - Maintain technical standards and documentation, and share knowledge with colleagues and junior IT staff.

Requirements

- At least five years of progressively responsible systems, cloud, or site reliability administration experience in a complex enterprise environment. - Strong administration experience with Windows Server, Active Directory, Entra ID, Microsoft 365, identity management, and SSO. - Working knowledge of Linux administration in AWS or hybrid cloud environments. - Hands on AWS administration experience, including services such as EC2, IAM, VPC, Route 53, Systems Manager, FSx, and CloudWatch. - Strong scripting and automation skills with PowerShell and AWS CLI. - Experience supporting SaaS, cloud native, hybrid cloud, and on premises infrastructure and applications. - Ability to work in a facility handling information subject to U.S. Department of Energy export controls; access authorization may be required.

Nice to have

- Bachelor’s degree in computer science, information technology, or a related field; eight or more years of overall IT experience. - Terraform, Ansible, or Nutanix AHV administration experience. - Advanced Windows Server and Active Directory skills, or experience with application integrations, APIs, SQL databases, and reporting platforms. - Experience supporting engineering, manufacturing, laboratory, or quality focused organizations, and working with vendors on upgrades and implementations.

Benefits and work setup

- Medical, dental, and vision coverage, paid vacation, 401(k), and pre tax spending benefits. - Some travel may be required, up to 5%; occasional weekend or extended hours may be needed for maintenance, deployments, upgrades, or critical incidents.