Site Reliability & Performance Engineer (Observability)

AAR; Chicago (IL); On-site; USD 110,000 - 130,000; Full time

Job summary

AAR in Wood Dale, IL is seeking a Site Reliability & Performance Engineer to advance our monitoring, observability, and application performance across the enterprise. You will shape best practices and help migrate to modern, scalable solutions.

You’ll design dashboards, automate triage, partner with infrastructure, security, and development teams, and help drive capacity planning for enterprise systems. This role offers significant ownership and visibility.

Qualifications

• Experience in Site Reliability Engineering or similar roles.
• Strong understanding of Windows and Linux servers (enterprise).
• Hands-on experience with monitoring/observability platforms (NR, Dynatrace, Datadog, Splunk, Azure Monitor).
• Scripting and automation experience (Python, Bash, PowerShell, Ansible).
• Ability to troubleshoot application/infrastructure performance issues.
• Ability to collaborate across technical teams in a fast-paced environment.
• Experience in enterprise-scale environments is preferred.

Responsibilities

• Design and enhance monitoring and observability solutions across infrastructure and applications
• Build dashboards, alerts, and reporting that improve visibility into system health and performance
• Analyze application and infrastructure performance to identify opportunities for improved reliability, scalability, and efficiency
• Partner with infrastructure, security, operations, and development teams to proactively solve issues
• Support automation initiatives, including self-healing capabilities and operational improvements
• Evaluate emerging monitoring technologies and help influence future platform decisions
• Drive capacity planning and performance optimization efforts across enterprise systems

Skills

Site Reliability

Observability

Monitoring Tools

Automation Scripting

Windows

Linux

Python

PowerShell

Ansible

Tools

New Relic

Dynatrace

Datadog

Splunk

Azure Monitor

Prometheus

Grafana

Job description

AAR in Wood Dale, IL is seeking a Site Reliability & Performance Engineer to advance our monitoring, observability, and application performance across the enterprise. You will shape best practices and help migrate to modern, scalable solutions.

You’ll design dashboards, automate triage, partner with infrastructure, security, and development teams, and help drive capacity planning for enterprise systems. This role offers significant ownership and visibility.