Senior Systems Administrator – 24/7 High Availability

WiseHR Group; Springfield (MO); On-site; USD 110,000 - 150,000; Full time

Job summary

WiseHR Group is seeking an experienced IT Infrastructure Engineer to design, implement, and maintain our network, servers, and related hardware/software. You will manage reliable, secure, cost-efficient IT infrastructure and operations across development, testing, and production environments.

You will ensure high availability, monitor server performance, and implement cybersecurity measures while collaborating with internal teams and vendors.

Qualifications

• Bachelor's degree or equivalent experience in Computer Information Systems.
• 8+ years hands-on Linux administration and Windows Server environments.
• Strong knowledge of web hosting components (firewalls, load balancers, web/database servers).
• Experience with Apache, Tomcat, Ruby on Rails, MS SQL, MySQL, and scripting.

Responsibilities

• Oversee day-to-day operation of company servers, hardware/software support, diagnostics, and special projects.
• Build and maintain servers for development, testing, customer testing, and production; ensure 24/7 high availability.
• Provide direction in complex problem-solving and interact with internal staff as needed.
• Collaborate with Web Services engineers on server design, database selection, and software applications.
• Document and maintain servers and hardware/software, including local servers (physical and virtual).
• Manage server user accounts, profiles, file sharing, access, and security.

Skills

Linux admin

Windows Server

VMware virtualization

Network security

Scripting

Troubleshooting

Education

Bachelor's degree or equivalent experience in Computer Information Systems

Tools

Apache

Tomcat

Ruby on Rails

Job description

WiseHR Group is seeking an experienced IT Infrastructure Engineer to design, implement, and maintain our network, servers, and related hardware/software. You will manage reliable, secure, cost-efficient IT infrastructure and operations across development, testing, and production environments.

You will ensure high availability, monitor server performance, and implement cybersecurity measures while collaborating with internal teams and vendors.