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Performance Engineering Jobs in Illinois (NOW HIRING)

Quest Diagnostics

Epic Site Reliability Engineer II

Schaumburg, IL · On-site

$85K - $110K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Stay informed about industry best practices and emerging technologies related to observability and performance engineering. * Drive continuous improvement initiatives to enhance the reliability and ...

Track Group, Inc

Industrial Engineer

Naperville, IL

$69K - $94K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Partner with suppliers to improve quality, implement corrective actions on non-conforming products, and evaluate supplier performance. Engineering & Supply Chain Liaison: Translate early-stage Bills ...

Track Group, Inc

Industrial Engineer

Naperville, IL · On-site

$69K - $94K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Partner with suppliers to improve quality, implement corrective actions on non-conforming products, and evaluate supplier performance. * Engineering & Supply Chain Liaison: Translate early-stage ...

project44

Head of Engineering

Chicago, IL · On-site

$235K - $290K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Build and lead a high-performance engineering team across US and EU - hiring, developing, and retaining top talent * Own the agentic AI engineering roadmap - how agents are built, reasoned with ...

project44

Head of Engineering

Chicago, IL · On-site

$235K - $290K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Build and lead a high-performance engineering team across US and EU - hiring, developing, and retaining top talent * Own the agentic AI engineering roadmap - how agents are built, reasoned with ...

Project 44

Head of Engineering Chicago

Chicago, IL · On-site

$235 - $290/hr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

Build and lead a high-performance engineering team across US and EU -- hiring, developing, and retaining top talent * Own the agentic AI engineering roadmap -- how agents are built, reasoned with ...

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Showing results 41-60

All JobsPerformance Engineering JobsPerformance Engineering Jobs in Illinois

Performance Engineering information

See Illinois salary details

$10

$58

$95

How much do performance engineering jobs pay per hour?

As of Aug 16, 2026, the average hourly pay for performance engineering in Illinois is $58.24, according to ZipRecruiter salary data. Most workers in this role earn between $47.74 and $65.91 per hour, depending on experience, location, and employer.

What is the job of a performance engineer?

A performance engineer is responsible for analyzing, testing, and optimizing software or systems to ensure they meet performance standards such as speed, scalability, and reliability. They use tools like load testing and monitoring software to identify bottlenecks and improve system efficiency, often working closely with development and operations teams.

How does a performance engineer typically collaborate with development and operations teams to resolve application bottlenecks?

Performance Engineers play a vital role in bridging the gap between development and operations teams. They work closely with developers to analyze application code and identify potential performance issues early in the development lifecycle. Additionally, they partner with operations teams to monitor system performance in production, interpret logs, and recommend infrastructure or configuration changes. This collaborative approach helps ensure that performance bottlenecks are identified and addressed quickly, leading to more reliable and scalable applications.

What is performance engineering?

Performance engineering is a discipline in software and systems development focused on ensuring applications and systems meet required speed, scalability, and stability standards. It involves analyzing, designing, testing, and optimizing performance throughout the software development lifecycle. Performance engineers use specialized tools and methodologies to detect bottlenecks, simulate real-world loads, and recommend improvements. Their goal is to deliver reliable, high-performing products to end users.

What are the key skills and qualifications needed to thrive as a performance engineer, and why are they important?

To thrive as a Performance Engineer, you need strong analytical abilities, expertise in software performance testing, and a background in computer science or a related field. Familiarity with tools like JMeter, LoadRunner, APM solutions, and scripting languages is typically required, along with relevant certifications such as ISTQB Performance Testing. Exceptional problem-solving skills, attention to detail, and effective communication help you identify bottlenecks and collaborate with development teams. These skills are crucial for ensuring applications meet performance standards and deliver a seamless user experience.

What is the difference between Performance Engineering vs Performance Testing?

AspectPerformance EngineeringPerformance Testing
FocusDesigning, developing, and implementing strategies to ensure system performance throughout the development lifecycleExecuting tests to measure system performance under specific conditions
ActivitiesPerformance planning, monitoring, optimization, and capacity planningLoad testing, stress testing, and benchmarking
Skills & CertificationsPerformance testing tools, scripting, monitoring, performance analysisPerformance testing tools, scripting, test execution
Work EnvironmentCollaborates with developers, architects, and operations teamsPrimarily testing teams and QA departments

Performance Engineering involves proactive strategies to optimize system performance throughout development, while Performance Testing focuses on evaluating system performance through specific tests. Both roles require similar skills but differ in scope and objectives, with Performance Engineering being more comprehensive and ongoing.

What are the most commonly searched types of Performance Engineering jobs in Illinois?

The most popular types of Performance Engineering jobs in Illinois are:

Performance Engineering jobs near you
Infographic showing various Performance Engineering job openings in Illinois as of August 2026, with employment types broken down into 1% As Needed, 87% Full Time, 10% Part Time, and 2% Contract. Highlights an 83% Physical, 3% Hybrid, and 14% Remote job distribution, with an average salary of $121,146 per year, or $58.2 per hour.

DevOps & Site Reliability Lead (SAP)

Tata Consultancy Service Limited

Deerfield, IL • On-site

$120K - $160K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 12 days ago

Job description

Must Have Technical/Functional Skills
  • We are seeking an experienced SAP Site reliability engineer with over 8+ years of SAP Functional roles experience preferably in Retail/IS Domain who can lead support specialists, define SLIs/SLOs, and collaborate with development teams to implement improvements.
  • The role requires deep functional expertise, operational excellence, and the ability to ensure high availability, performance, and reliability of integration platforms.

Roles & Responsibilities
Key Responsibilities
  • Operational Excellence: Maintain high system availability and performance, troubleshooting production issues, and Managing Incident and Change Management (RCA).
  • Security Compliance: Coordinate security validation and ensure secure deliveries according to SAP standards.
  • Team Leadership: Lead support specialists, define SLIs/SLOs, and collaborate with development teams to implement improvements.

Generic Managerial Skills, If any
  • SRE & Platform Skills
  • Incident & Problem Management
  • Monitoring & Alerting
  • High Availability & DR
  • Performance Engineering
  • Reliability Engineering concepts

TCS Employee Benefits Summary:
  • Discretionary Annual Incentive.
  • Comprehensive Medical Coverage: Medical & Health, Dental & Vision, Disability Planning & Insurance, Pet Insurance Plans.
  • Family Support: Maternal & Parental Leaves.
  • Insurance Options: Auto & Home Insurance, Identity Theft Protection.
  • Convenience & Professional Growth: Commuter Benefits & Certification & Training Reimbursement.
  • Time Off: Vacation, Time Off, Sick Leave & Holidays.
  • Legal & Financial Assistance: Legal Assistance, 401K Plan, Performance Bonus, College Fund, Student Loan Refinancing.

#LI-KR3
Salary Range-$120,000-$160,000 a year

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