Senior Systems Engineer - 24x7 Mission-Critical Ops

APR Staffing; Portland (OR); Hybrid; USD 90,000 - 130,000; Full time

Job summary

APR Staffing in Portland, OR seeks a Contract System Administrator 3 to support mission-critical applications, ensuring 24x7 availability. You will collaborate with SMEs to implement IT policies and maintain complex environments across Windows, Linux, and enterprise systems.

The role requires a Bachelor’s degree (or equivalent) and 6+ years of related experience, with on-call responsibilities and potential travel. A strong focus on automation, security, and documentation is expected.

Qualifications

• Bachelor’s degree preferred; 6+ years’ experience with enterprise IT support.
• Experience supporting and maintaining operational software applications.
• Ability to transform data for automation efforts and work with SMEs throughout the System Life Cycle.

Responsibilities

• Analyze, test, and apply changes to the application environment under change management procedures.
• Diagnose and resolve complex technical problems and system downtime promptly.
• Collaborate with managers, developers, QA testers, and users throughout the System Life Cycle.
• Lead complex system migrations, upgrades, and other IT initiatives as assigned.

Skills

PowerShell

Windows

Linux

Troubleshooting

Communication

Education

Bachelor’s degree in Computer Science or related field

Tools

CMDB tools

Microsoft Office (PowerPoint, Access, Project)

Job description

APR Staffing in Portland, OR seeks a Contract System Administrator 3 to support mission-critical applications, ensuring 24x7 availability. You will collaborate with SMEs to implement IT policies and maintain complex environments across Windows, Linux, and enterprise systems.

The role requires a Bachelor’s degree (or equivalent) and 6+ years of related experience, with on-call responsibilities and potential travel. A strong focus on automation, security, and documentation is expected.