System Administrator

Ethereum Technologies LLC; Minneapolis (MN); On-site; USD 80,000 - 110,000; Full time

Job summary

Ethereum Technologies is seeking a System Administrator to manage and support enterprise IT infrastructure across Windows and Linux servers. The role emphasizes system availability, security, and performance, with hands-on work in AD, virtualization, backups, and cloud services.

You will monitor, patch, and harden servers, automate tasks with PowerShell and Bash, and collaborate with network, security, and development teams to keep critical systems running smoothly.

Qualifications

• 5+ years of experience in System Administration or IT infrastructure.
• Expertise in Windows Server, Linux, Active Directory, DNS, DHCP, and GPO.
• Experience with virtualization (VMware/Hyper-V) and cloud (AWS/Azure/GCP).
• Scripting skills with PowerShell and Bash for automation.
• Strong networking basics and security hardening practices.

Responsibilities

• Install, configure, and maintain Windows and Linux servers.
• Monitor performance, availability, and health of the infrastructure.
• Manage AD users, security groups, and GPOs.
• Patch, upgrade, and backup critical systems.
• Collaborate with network, security, and DevOps teams.

Skills

Windows Server administration

Linux administration

Active Directory / GPO

PowerShell / Bash scripting

VMware / Hyper-V virtualization

Cloud platforms (AWS/Azure/GCP)

Education

Bachelor's degree in CS/IT/Engineering

Master's degree preferred

RHCSA / RHCE / CompTIA Server+ / VCP

Tools

SolarWinds / Nagios / Zabbix / Prometheus

Intune / SCCM / ConfigMgr

Backup tools (Veeam / Commvault)

Job description

US Citizen, Green Card, H-1B, OPT-EAD, CPT, Other

Work Authorization: US Citizen, Green Card, OPT-EAD, CPT, H-1B, H4-EAD, Other

Position Overview:

The System Administrator will be responsible for managing, maintaining, configuring, and supporting enterprise IT infrastructure to ensure system availability, security, and performance. The ideal candidate will have strong experience in Windows and Linux server administration, system monitoring, troubleshooting, network fundamentals, and infrastructure management. This role involves maintaining server environments, managing user access, implementing security updates, resolving technical issues, and supporting business-critical IT operations.

System Administration Technologies & Technical Expertise:

Strong experience with Windows Server 2016, 2019, 2022, and Active Directory.

Hands-on experience with Linux distributions such as Red Hat Enterprise Linux (RHEL), Ubuntu, and CentOS.

Proficiency in Active Directory, Group Policy Objects (GPO), DNS, DHCP, and LDAP.

Experience with VMware vSphere, ESXi, and Hyper-V virtualization platforms.

Knowledge of server installation, configuration, patching, upgrades, and maintenance.

Experience with PowerShell, Bash, and shell scripting for system administration automation.

Familiarity with cloud platforms such as AWS, Microsoft Azure, or Google Cloud Platform.

Experience with system monitoring tools such as SolarWinds, Nagios, Zabbix, or Prometheus.

Knowledge of backup and recovery solutions such as Veeam, Commvault, and Windows Server Backup.

Understanding of networking concepts, TCP/IP, VPN, firewalls, routing, and load balancing.

Experience with endpoint management tools such as Microsoft Intune, SCCM, or Microsoft Configuration Manager.

Knowledge of server security, access controls, vulnerability management, and compliance standards.

Familiarity with IT service management tools such as ServiceNow, Jira Service Management, or BMC Remedy.

Key System Administration Responsibilities:

Install, configure, manage, and maintain Windows and Linux server environments.

Monitor system performance, availability, resource utilization, and infrastructure health.

Administer Active Directory, user accounts, security groups, and Group Policy configurations.

Perform routine server patching, upgrades, maintenance, and security updates.

Manage virtualization environments using VMware and Hyper-V.

Configure and troubleshoot DNS, DHCP, network connectivity, and server-related issues.

Implement backup, recovery, and disaster recovery procedures.

Automate repetitive administrative tasks using PowerShell and Bash scripting.

Monitor system logs, investigate incidents, and resolve infrastructure-related problems.

Implement security policies, access controls, and system hardening procedures.

Support cloud-based infrastructure and hybrid IT environments.

Collaborate with network engineers, security teams, developers, and IT support personnel.

Maintain system documentation, configuration records, and operational procedures.

Provide technical support for production systems and participate in incident management.

Experience & Professional Competencies:

5+ years of experience in System Administration, IT Infrastructure, or Server Administration.

Strong hands-on experience with Windows Server and/or Linux administration.

Practical experience managing Active Directory, DNS, DHCP, and Group Policy.

Experience with virtualization technologies such as VMware or Hyper-V.

Knowledge of server monitoring, troubleshooting, backup, and disaster recovery.

Experience with PowerShell or Bash scripting for automation.

Understanding of networking fundamentals and enterprise infrastructure security.

Exposure to cloud platforms and hybrid infrastructure environments is preferred.

Strong analytical, troubleshooting, and problem-solving skills.

Ability to manage multiple technical priorities and collaborate with cross-functional teams.

Academic Qualifications & Preferred Certifications:

Bachelor's degree in Computer Science, Information Technology, Computer Engineering, or a related field.

Master's degree in Information Technology, Systems Administration, or Cybersecurity is preferred.

Relevant certifications such as Microsoft Certified: Windows Server Hybrid Administrator Associate, Red Hat Certified System Administrator (RHCSA), CompTIA Server+, or VMware Certified Professional (VCP) are an advantage.

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.