IT Administrator

1rti; South Dakota; On-site; USD 65,000 - 90,000; Full time

Benefits offered by this job

401(k) matching

Medical insurance

Dental insurance

Vision insurance

Paid holidays

Generous PTO

Job summary

1rti is seeking an IT Systems Administrator to join our internal IT team in South Dakota. You will provide end-user support, administer on-premises and cloud systems, and help maintain secure, reliable infrastructure across Windows, Linux, and networking stacks.

The role includes an on-call rotation, periodic travel, and hands-on installation of servers, storage, networking, and related equipment, with opportunities to implement automation and improve processes for a resilient IT environment.

Qualifications

• 3+ years of IT administration or related experience.
• Windows desktop & server administration; Linux administration.
• Experience with Microsoft 365, Entra ID, and Azure services.
• Strong networking fundamentals: TCP/IP, DNS, DHCP, VLANs, routing, switching.
• Knowledge of firewalls, VPNs, wireless networking, and security concepts.
• Troubleshooting hardware, software, OS, and network issues.
• Excellent customer service, documentation, and problem-solving skills.
• Ability to work independently and with a team; travel as needed; pass drug screen.

Responsibilities

• End User & Help Desk Support: provide technical support; troubleshoot issues; respond via ticketing, email, phone, chat, deskside; deploy/desktops and mobile devices; document knowledge base; train users on security practices.
• Systems & Cloud Administration: manage Windows Server/Desktops, Linux; administer Microsoft 365, Entra ID, Exchange Online, Teams, SharePoint; administer Azure resources and cloud security; perform patching, monitoring, upgrades, lifecycle management; support backups and virtualization; monitor availability and cloud costs.
• Networking & Security: configure/troubleshoot switches, firewalls, VPNs; manage TCP/IP, DNS, DHCP, VLANs; assist with monitoring, vulnerability remediation, incident response; maintain network docs.
• Infrastructure & Projects: install/rack/cable/maintain servers/storage/UPS; participate in upgrades, migrations; assist with capacity planning and roadmaps; coordinate with vendors and stakeholders.

Job description

Description

Job Summary:

We are seeking a motivated and technically skilled IT Systems Administrator to join our internal IT team. This position provides end-user support, administers on-premises and cloud systems, and helps maintain secure, reliable, and scalable technology infrastructure.

The ideal candidate is a practical problem solver who enjoys helping users, troubleshooting complex issues, and working across Windows, Linux, networking, cloud, and cybersecurity technologies. The role includes participation in an on-call rotation, periodic travel, and hands-on installation of server, storage, networking, and rack-mounted equipment.

What You’ll Be Doing:

End User & Help Desk Support

• Provide technical support to internal end users.
• Troubleshoot hardware, software, identity, access, connectivity, and system issues.
• Respond to requests through the ticketing system, email, phone, chat, and deskside support.
• Configure and deploy desktops, laptops, mobile devices, peripherals, and business software.
• Create and maintain technical documentation and knowledge base articles.
• Train users on technology best practices and security awareness.

Systems & Cloud Administration

• Administer and support Windows Server, Windows desktop, and Linux environments.
• Manage Microsoft 365, Microsoft Entra ID, Exchange Online, Teams, SharePoint, and related services.
• Administer Microsoft Azure resources, identity, access controls, and cloud security configurations.
• Perform maintenance, patching, monitoring, upgrades, and lifecycle management.
• Support backups, recovery testing, business continuity, virtualization, and server deployments.
• Monitor system availability, performance, capacity, and cloud cost trends.

Networking & Security

• Configure and troubleshoot switches, firewalls, wireless networks, VPNs, and related infrastructure.
• Support TCP/IP, DNS, DHCP, VLANs, routing, switching, LAN, WAN, and internet connectivity.
• Assist with cybersecurity monitoring, vulnerability remediation, access reviews, and incident response.
• Maintain accurate network documentation, diagrams, inventories, and configuration standards.

Infrastructure & Projects

• Install, rack, cable, and maintain servers, storage, UPS systems, and networking equipment.
• Participate in infrastructure upgrades, equipment refreshes, migrations, and technology deployments.
• Assist with capacity planning, storage planning, infrastructure design, and technology roadmaps.
• Coordinate with vendors, service providers, and internal stakeholders as needed.

Requirements

What You’ll Need:

Required Qualifications:

• 3+ years of experience in IT administration, systems administration, help desk, or a related role.
• Strong working knowledge of Windows desktop and server operating systems and Linux administration.
• Experience administering Microsoft 365, Microsoft Entra ID, and Microsoft Azure services.
• Working knowledge of networking fundamentals, including TCP/IP, DNS, DHCP, VLANs, routing, and switching.
• An understanding of firewalls, VPNs, wireless networking, and network security concepts.
• Experience troubleshooting computer hardware, software, operating systems, and network issues.
• Strong customer service, communication, documentation, and problem-solving skills.
• Ability to work independently, prioritize competing needs, and collaborate effectively with a team.
• Valid driver’s license and ability to travel when required.
• Must be able to pass drug screening and background check

Preferred Qualifications:

• Experience with VMware, Hyper-V, or another virtualization platform.
• Experience with enterprise storage, infrastructure planning, monitoring, and backup solutions.
• Knowledge of relational databases such as SQL Server, MySQL, MariaDB, or PostgreSQL.
• Knowledge of web servers such as IIS, Apache, or NGINX.
• Experience with automation or scripting using PowerShell, Bash, or Python.
• Industry certifications such as CompTIA A+, Network+, Security+, Microsoft Azure, Cisco, or Linux certifications.

Physical Requirements:

• Ability to safely lift and move equipment weighing up to 60 pounds using proper lifting techniques.
• Ability to rack, cable, install, and service server, storage, UPS, and network equipment.
• Ability to work in office, data center, warehouse, and equipment-room environments.
• Ability to stand, walk, bend, climb ladders, and work in confined spaces when required.

Schedule & Travel:

• Participation in an on-call rotation for after-hours support.
• Occasional evening or weekend maintenance activities.
• Periodic travel to company facilities, project sites, training, or vendor engagements.

What Success Looks Like:

• Delivers excellent customer service while resolving technical issues efficiently.
• Maintains secure, stable, documented, and highly available IT systems.
• Proactively identifies opportunities for automation, standardization, and process improvement.
• Contributes to infrastructure projects and long-term technology planning.
• Serves as a trusted technical resource for employees and leadership.

What You Can Look Forward to:

We offer a competitive salary and benefits package, including 401(k) with match, medical, dental, vision, paid holidays, and a generous PTO plan.

• PASSION: A passionate work environment – we are passionate about finding unique, creative solutions to our customers’ challenges.
• CREATIVITY: A creative environment with creative people – we enjoy finding creative solutions to different challenges.
• TEAMWORK: A team-centric environment - we thrive on working with others to reach a common goal.