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Gas Engine Performance Engineer Jobs (NOW HIRING)

LiquidPiston

Engine Performance Engineer

Suffield, CT · On-site

As Senior Engineer - Performance & Calibration you will be a key contributor to engine performance development activities aimed at bringing LiquidPiston's rotary engines to production. You will work ...

LiquidPiston

Senior Engine Performance Engineer

Suffield, CT · On-site

$101K - $139K/yr

Senior Engine Performance Engineer This role is fully onsite in Bloomfield, CT, five days per week, and the company will be relocating to Suffield, CT later in 2026.​​​​​ About LiquidPiston:

MHI

Gas Turbine Performance Engineer I

Orlando, FL · On-site

Gas Turbine Performance Engineer I Company Overview At Mitsubishi Power, we're not just building better clean energy technologies; we're architecting a better future. Our team is boldly redefining ...

MHI

Gas Turbine Performance Engineer I

Orlando, FL · On-site

Gas Turbine Performance Engineer I Company Overview At Mitsubishi Power, we're not just building better clean energy technologies; we're architecting a better future. Our team is boldly redefining ...

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Gas Engine Performance Engineer information

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$109.5K

$125K

$139K

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

As of Aug 16, 2026, the average yearly pay for gas engine performance engineer in the United States is $125,000.00, according to ZipRecruiter salary data. Most workers in this role earn between $117,500.00 and $132,500.00 per year, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive in the gas engine performance engineer position, and why are they important?

To thrive as a Gas Engine Performance Engineer, you need a solid background in mechanical or automotive engineering and a deep understanding of thermodynamics, combustion, and engine mechanics. Familiarity with diagnostic software, data acquisition systems, and industry certifications such as Engineer-in-Training (EIT) or Professional Engineer (PE) can be important. Strong analytical skills, attention to detail, and effective collaboration and communication abilities help you excel in multidisciplinary team environments. These competencies are critical for optimizing engine performance, troubleshooting issues, and meeting regulatory and efficiency standards.

What is a gas engine performance engineer?

A Gas Engine Performance Engineer is responsible for analyzing, testing, and optimizing the performance of gas-powered engines. They work on improving fuel efficiency, emissions, and overall engine reliability through data analysis and simulation. Their role involves collaborating with design and development teams to enhance engine calibration and troubleshoot performance issues. Additionally, they may conduct real-world and laboratory testing to validate engine performance under various conditions.

What are some typical day-to-day responsibilities for a gas engine performance engineer?

As a Gas Engine Performance Engineer, your daily tasks often include analyzing engine test data, diagnosing performance issues, and developing solutions to improve efficiency and emissions. You may work closely with design, controls, and field service teams to implement performance improvements or troubleshoot complex engine problems. Responsibilities can also involve conducting engine calibration, preparing technical reports, and ensuring compliance with industry standards. Collaboration with other engineers and stakeholders is a key part of the job, as is staying current with the latest advancements in gas engine technologies. This dynamic role requires both hands-on testing and technical analysis work within a team-focused environment.

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Gas Engine Performance Engineer jobs near you
Infographic showing various Gas Engine Performance Engineer job openings in the United States as of August 2026, with employment types broken down into 1% As Needed, 87% Full Time, 10% Part Time, and 2% Contract. Highlights an 91% Physical, 2% Hybrid, and 7% Remote job distribution, with an average salary of $125,000 per year, or $60.1 per hour.

Big Bore Natural Gas Engine Engineer

Weichai America Corp.

Rolling Meadows, IL • On-site

$130K - $150K/yr

Full-time

Medical, Dental, Vision, Retirement

Re-posted 21 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.