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Senior Engine Performance Engineer Jobs in Chicago, IL

Akuna Capital

Performance Engineer

Chicago, IL

$145K/yr

Contribute to the design and implementation of our trading engine by increasing its performance ... Strong C++ or Python programming background with demonstrated experience developing performant ...

Akuna Capital

Performance Engineer

Chicago, IL · On-site

$145K/yr

Contribute to the design and implementation of our trading engine by increasing its performance ... Strong C++ or Python programming background with demonstrated experience developing performant ...

Hi-Tech Solutions

Performance Engineer

Chicago, IL

As a Performance Engineer in Test, this role will have a breadth of knowledge and success in ... Abas - Senior Technical Recruiter Hi-Tech Solutions, Inc. (HTS) 2 Mid America Plaza Suite 630 ...

Hearst Newspapers

Sr. SEO Manager

Chicago, IL · On-site

... engineering, data, and AI to build connected digital systems that improve performance, strengthen ... Your Impact As a Sr. Manager, SEO, you will provide day-to-day SEO & GEO leadership for advanced ...

iCrossing

Sr. SEO Manager

Chicago, IL · On-site

... engineering, data, and AI to build connected digital systems that improve performance, strengthen ... Your Impact As a Sr. Manager, SEO, you will provide day-to-day SEO & GEO leadership for advanced ...

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All JobsEngine Performance Engineer JobsSenior Engine Performance Engineer JobsSenior Engine Performance Engineer Jobs in Chicago, IL

Senior Engine Performance Engineer information

See Chicago, IL salary details

$61.3K

$130.4K

$189K

How much do senior engine performance engineer jobs pay per year?

As of Jul 11, 2026, the average yearly pay for senior engine performance engineer in Chicago, IL is $130,372.00, according to ZipRecruiter salary data. Most workers in this role earn between $107,600.00 and $147,800.00 per year, depending on experience, location, and employer.

What does a Senior Engine Performance Engineer do?

A Senior Engine Performance Engineer is responsible for analyzing, developing, and optimizing engine systems to ensure they meet performance, efficiency, and emissions standards. They work on testing and calibrating engines, interpreting data, and making recommendations for design improvements. These engineers often lead teams, collaborate with other departments, and use advanced tools and simulation software to achieve project goals. Their expertise is crucial in the automotive, aerospace, and manufacturing industries where engine performance is critical.

What is the difference between Senior Engine Performance Engineer vs Engine Calibration Engineer?

AspectSenior Engine Performance EngineerEngine Calibration Engineer
Required CredentialsBachelor's/Master's in Mechanical or Automotive Engineering, certifications like SAE or OEM-specific trainingBachelor's in Mechanical or Automotive Engineering, calibration-specific certifications often preferred
Work EnvironmentDesign labs, testing facilities, vehicle development teamsEngine control units (ECU) calibration, testing labs, vehicle integration
Employer & Industry UsageAutomotive OEMs, Tier 1 suppliers, motorsport teamsAutomotive OEMs, ECU calibration firms, aftermarket tuning companies

The Senior Engine Performance Engineer focuses on optimizing engine performance through testing and analysis, while the Engine Calibration Engineer specializes in ECU tuning and calibration to meet performance and emissions standards. Both roles require similar technical backgrounds but differ in their specific focus areas within engine development.

What are the key skills and qualifications needed to thrive as a Senior Engine Performance Engineer, and why are they important?

To thrive as a Senior Engine Performance Engineer, you need a deep understanding of thermodynamics, combustion, and engine calibration, typically supported by a degree in mechanical or automotive engineering. Proficiency with simulation software (like GT-Power), data acquisition systems, and engine management tools is essential, along with knowledge of industry standards such as ISO or SAE. Analytical thinking, problem-solving, and effective communication are crucial soft skills for collaborating with cross-functional teams and presenting technical findings. These skills and qualifications are vital for optimizing engine performance, meeting regulatory requirements, and driving innovation in competitive automotive environments.

What are some of the main challenges a Senior Engine Performance Engineer faces when working on new engine designs?

One of the main challenges in this role is balancing competing requirements such as power output, fuel efficiency, emissions compliance, and durability. Senior Engine Performance Engineers often need to collaborate closely with calibration, validation, and design teams to optimize engine parameters while adhering to project timelines and regulatory standards. Additionally, keeping up with rapidly evolving technologies and integrating new components or control strategies can add complexity to the development process. Strong problem-solving skills and effective cross-functional communication are critical to successfully navigating these challenges.
What are the most commonly searched types of Engine Performance Engineer jobs in Chicago, IL? The most popular types of Engine Performance Engineer jobs in Chicago, IL are:
What are popular job titles related to Senior Engine Performance Engineer jobs in Chicago, IL? For Senior Engine Performance Engineer jobs in Chicago, IL, the most frequently searched job titles are:
What job categories do people searching Senior Engine Performance Engineer jobs in Chicago, IL look for? The top searched job categories for Senior Engine Performance Engineer jobs in Chicago, IL are:
Senior Engine Performance Engineer jobs near you
Big Bore Natural Gas Engine Engineer

Big Bore Natural Gas Engine Engineer

Weichai America Corp.

Rolling Meadows, IL • On-site

$130K - $150K/yr

Full-time

Medical, Dental, Vision, Retirement

Posted 16 days ago

Job description

Weichai America is seeking an experienced Big Bore Natural Gas Engine Engineer to support the development of next-generation power generation technologies. In this highly visible engineering role, you will lead the design, analysis, testing, and continuous improvement of large-bore natural gas engines, helping deliver reliable, efficient, and environmentally responsible power solutions. Working with a collaborative team of engineers and technical experts, you will contribute to innovative products that serve customers across the industrial, energy, and power generation markets.

Position Summary

The Big Bore Natural Gas Engine Engineer is responsible for the design, development, performance optimization, and technical support of large-displacement natural gas engines used in power generation, oil & gas, and industrial applications. The role covers engine performance, combustion, emissions compliance, durability, and field troubleshooting across stationery and mobile applications.

Key Responsibilities

Engine Design & Development

  • Support design and development of large-bore natural gas engines and related subsystems.
  • Optimize combustion performance, fuel efficiency, and emissions compliance.
  • Develop improvements for reliability, durability, and service life.
  • Collaborate with mechanical, controls, and electrical teams for system integration.

Performance & Emissions Optimization

  • Analyze engine performance data to improve efficiency and output.
  • Support emissions compliance for NOx, CO, VOC, and methane slip regulations.
  • Work on combustion tuning and control calibration.

Testing & Validation

  • Plan and execute engine test programs.
  • Analyze test results and recommend design or calibration changes.
  • Support prototype and validation testing.

Field Support & Troubleshooting

  • Provide technical support for field issues and root-cause investigations.
  • Support commissioning and troubleshooting of engines in customer installations.
  • Work with service teams to improve engine reliability and maintainability.

System Integration

  • Support integration with:
    • Generator systems
    • Fuel systems
    • Cooling and lubrication systems
    • Aftertreatment systems
    • Control and monitoring systems

Documentation & Compliance

  • Prepare technical reports and documentation.
  • Support regulatory compliance and certification activities.
  • Support customer and internal technical reviews.

Required Qualifications

  • Bachelor’s or higher degree in Mechanical Engineering, Aerospace Engineering, or related field.
  • Experience with large natural gas engines or industrial combustion systems.
  • Knowledge of internal combustion engine operation and thermodynamics.
  • Experience in engine testing and data analysis.
  • Familiarity with emissions regulations and engine controls.
  • Strong troubleshooting and analytical skills.


Preferred Qualifications

  • Experience with big bore engines.
  • Experience in power generation or oil & gas engine applications.
  • Knowledge of combustion simulation or engine modeling tools.
  • Experience with calibration and engine control systems.
  • Field commissioning or service experience.


Key Skills

  • Engine performance analysis
  • Combustion & emissions knowledge
  • Test data interpretation
  • Root cause analysis
  • Cross-functional teamwork
  • Technical documentation
  • Project execution


Typical Applications Supported

  • Natural gas generator sets
  • Industrial power engines
  • Data center backup generation


Benefits
Comprehensive health benefits, including medical, dental and vision coverage, STD and LTD, HSA and FSA options, 401(k) with company match.

Equal Opportunity Statement

At Weichai America Corp., we are committed to creating an inclusive environment where everyone is valued and respected. We celebrate diversity and are proud to be an equal opportunity employer.


We make hiring decisions based on qualifications, experience, and business needs. We do not discriminate based on race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, veteran status, or any other protected status.


If you require accommodations during the application or interview process, please contact hr@weichaiamerica.com for Accommodation Requests.


Weichai America Corp. is a drug-free workplace. All candidates will be required to undergo and successfully pass a drug screening and background check as part of the hiring process.