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Senior Performance Engineer Jobs in Illinois (NOW HIRING)

Roadrunner

Senior Software Engineer

Downers Grove, IL · On-site

$122K - $161K/yr

As a Senior Software Engineer, you will be involved in all aspects of the design, architecture ... Ensure solutions meet performance, reliability, and business expectations 2. Drive modernization ...

Roadrunner

Senior Software Engineer

Downers Grove, IL · On-site

$122K - $161K/yr

As a Senior Software Engineer, you will be involved in all aspects of the design, architecture ... Ensure solutions meet performance, reliability, and business expectations 2. Drive modernization ...

Roadrunner

Senior Software Engineer

Downers Grove, IL

$122K - $161K/yr

As a Senior Software Engineer, you will be involved in all aspects of the design, architecture ... Ensure solutions meet performance, reliability, and business expectations 2. Drive modernization ...

Roadrunner

Senior Software Engineer

Downers Grove, IL · On-site

$122K - $161K/yr

As a Senior Software Engineer, you will be involved in all aspects of the design, architecture ... Ensure solutions meet performance, reliability, and business expectations 2. Drive modernization ...

UL Standards and Engagement

Senior Data Engineer

Evanston, IL · On-site

$101K - $138K/yr

The Senior Data Engineer will design, develop, and scale enterprise data infrastructure that ... Monitor, troubleshoot, and continuously improve data platform performance, reliability, scalability ...

ECS

Sr. Elastic Engineer

Scott Air Force Base, IL · On-site

$100K - $138K/yr

ECS is seeking a Sr. Elastic Engineer to work in our Scott AFB, IL office. Are you passionate about ... Monitor system health, troubleshoot performance issues, and optimize for reliability and ...

RB Global Inc.

Senior Staff Software Engineer

Chicago, IL · On-site

$120 - $160/hr

Diagnose and resolve difficult performance, reliability, and scalability challenges across BI and data workloads (e.g., Power BI, Synapse, Fabric). * Contribute to technical strategy across ...

New

HuFriedyGroup

Senior Industrial Engineer

Northbrook, IL · On-site

$118K - $130K/yr

Position Summary The Senior Industrial Engineer leads strategic initiatives that improve safety, quality, productivity, and operational performance across manufacturing, assembly, and distribution ...

HuFriedyGroup

Senior Industrial Engineer

Northbrook, IL · On-site

$118K - $130K/yr

Position Summary The Senior Industrial Engineer leads strategic initiatives that improve safety, quality, productivity, and operational performance across manufacturing, assembly, and distribution ...

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Showing results 41-60

All JobsPerformance Engineer JobsSenior Performance Engineer JobsSenior Performance Engineer Jobs in Illinois

Senior Performance Engineer information

See Illinois salary details

$57.7K

$122.6K

$177.8K

How much do senior performance engineer jobs pay per year?

As of Aug 7, 2026, the average yearly pay for senior performance engineer in Illinois is $122,637.00, according to ZipRecruiter salary data. Most workers in this role earn between $101,300.00 and $139,100.00 per year, depending on experience, location, and employer.

What skills and qualifications are needed to thrive as a senior performance engineer?

To thrive as a Senior Performance Engineer, expertise in performance analysis, capacity planning, and system optimization—often backed by a degree in computer science or a related field—is crucial. Familiarity with tools such as LoadRunner, JMeter, APM solutions, profiling tools, and relevant certifications like CPPE or PMP are highly beneficial. Strong problem-solving, collaboration, and clear communication skills are vital for identifying bottlenecks and working closely with cross-functional teams. These combine to ensure robust system performance, user satisfaction, and reliable application scalability in demanding technical environments.

What does a senior performance engineer do?

A Senior Performance Engineer typically oversees performance testing cycles, analyzes system metrics, and collaborates with development and operations teams to diagnose and resolve performance issues. Daily tasks often include designing and executing test plans, monitoring application behavior under load, and recommending improvements for scalability and efficiency. They also participate in code reviews and architectural discussions to identify potential bottlenecks early in the development cycle. Consistent communication with both technical and non-technical stakeholders is key, ensuring that performance goals align with business objectives.

What is a senior performance engineer?

A Senior Performance Engineer is responsible for optimizing the performance, scalability, and reliability of software applications and systems. They analyze performance metrics, conduct load and stress testing, identify bottlenecks, and work with development teams to implement improvements. This role requires expertise in profiling tools, performance tuning, and system architecture to ensure optimal user experience. Additionally, they may establish best practices for performance testing and contribute to overall system design decisions.

What are the most commonly searched types of Performance Engineer jobs in Illinois? The most popular types of Performance Engineer jobs in Illinois are:
What are popular job titles related to Senior Performance Engineer jobs in Illinois? For Senior Performance Engineer jobs in Illinois, the most frequently searched job titles are:
What job categories do people searching Senior Performance Engineer jobs in Illinois look for? The top searched job categories for Senior Performance Engineer jobs in Illinois are:
What cities in Illinois are hiring for Senior Performance Engineer jobs? Cities in Illinois with the most Senior Performance Engineer job openings:
Senior Performance Engineer jobs near you
Infographic showing various Senior Performance Engineer 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 $122,637 per year, or $59 per hour.

Senior Analyst - Operations Performance

United Airlines, Inc.

Chicago, IL • On-site

Full-time

Posted 8 days ago

United Airlines rating

7.9

Company rating: 7.9 out of 10

Based on 341 frontline employees who took The Breakroom Quiz

7th of 26 rated airlines

Job description

Description
At United, we fly into airports around the entire world. And we need a whole team of people to keep things running in tip-top shape! From the exceptional service at the check-in counter to the departure gate, and even behind the scenes making sure your checked bags arrive with you, our Airport Operations team keeps operations at our airports running smoothly every single day.
Job Overview and Responsibilities
Leadership role driving the decisions on new processes, tools, reports, dashboards, insights, etc... to improve efficiency for Systems Ops Control (SOC), Above the Wing (ATW), Below the Wing (BTW) and other Operational departments around the system in the field and at Network Ops Control (NOC) and Corporate Support Center (CSC).
  • Develop new and recurring reports and insights for Airport Operations senior leadership in SOCs, ATW, and BTW leadership, business partners, flying partners, and other operational divisions as needed; Administer and manage fixes and enhancements to existing performance reporting
  • Develop and communicate operational reliability insights for senior leadership, including materials for Performance Council and STAR meetings
  • Partner with Network Planning to manage the gating of future flight schedules; manage the gate fit process
  • Ad hoc analysis related to improvement of process, reliability, competitive performance, etc
  • Support in operational roles to support zone shift coverage in the SOC; must be willing to fully train as a Zone / Gate Manager
  • Manage analytics reporting for APU usage insights and develop/enhance our reporting interfaces (dashboards and emails)

Qualifications
What's needed to succeed (Minimum Qualifications):
  • Bachelor's Degree in Finance, Business, Data Science, Industrial Engineering, Analytics, Supply Chain.
  • Must pass technical skills test (Excel, SQL, Power Point, etc
  • 3 years of Airport Operations Analytics experience
  • Airport Operations experience. Dashboarding and Data Visualization experience
  • Task/System/Reporting Automation experience
  • Intermediate to expert knowledge of Microsoft suite of tools
  • Intermediate knowledge of Spotfire or other dashboarding business intelligence tools
  • Beginner to intermediate Python/VB/VBA knowledge
  • Must be legally authorized to work in the United States for any employer without sponsorship
  • Successful completion of interview required to meet job qualification
  • Reliable, punctual attendance is an essential function of the position

What will help you propel from the pack (Preferred Qualifications):
  • Bachelor's Degree in Aviation Administration or a related field
  • SOC specific Airport Operations experience. Programming/Coding experience
  • HTML, CSS, GitHub

What United Airlines employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom

United Airlines logo

About United Airlines

Sourced by ZipRecruiter

United Airlines is embarking on an exciting journey to become the best airline in aviation history. Our purpose, "Connecting People, Uniting the World," extends beyond transportation, emphasizing our commitment to uplift and create opportunities in the places we serve. With a global presence and diverse workforce, we value inclusivity and are dedicated to hiring tens of thousands of individuals across various roles. Our comprehensive benefits package, including perks like space available travel, parental leave, and 401k, aims to support your well-being and growth.

Industry

Aviation

Company size

10,000+ Employees

Headquarters location

Chicago, IL, US

Year founded

1926

Social media

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