Senior Systems Administrator

The Senior Systems Administrator at Hach is responsible for the design, implementation, and ongoing management of core infrastructure services supporting Water Quality operations. This role involves administering Windows Server, Active Directory, VMware/virtualisation, DNS, certificate lifecycle management, email authentication, and external security vulnerability remediation. Candidates must have a bachelor's degree in Computer Science or related field, with at least 6 years of hands-on experience in enterprise environments. Deep technical skills in Windows Server, Active Directory, DNS/DHCP, Group Policy, VMware, SSL/TLS certificate management, and advanced PowerShell scripting are essential. The position is based in the United States, with a salary range of $95,000-$105,000 USD and eligibility for bonus pay. Hybrid working is offered.