About Ameren Missouri
Ameren Missouri has been providing electric and gas service for more than 100 years, and our electric rates are among the lowest in the nation. Ameren Missouri's mission is to power the quality of life for our 1.2 million electric and 132,000 natural gas customers in central and eastern Missouri. Our service area covers 64 counties and more than 500 communities including the greater St. Louis area.
Our benefits include:
Medical coverage on date of hire
100% employer paid cash balance pension plan
401(k) with company match fully vested on date of hire
Minimum of 15 days paid vacation and 12 paid holidays
Paid parental leave and family caregiver leave
Visit our Benefits & Perks Page for more information on benefits provided to regular full-time employees.
About The Position
The Commissioning Engineer performs startup and check out activities for new assets as assigned by the Commissioning Supervisor. This position has primary responsibility for supporting Missouri Regulated Generation Non-Nuclear energy centers with travel required.
Key responsibilities include:
- Manage and/or support projects involving electrical, mechanical and process equipment and related systems.
- Develop test plans, test procedures, cost and schedule estimates, and preliminary work plans with identified resources.
- Upon assignment, perform detailed system and existing equipment surveillance, and review specifications for equipment and construction details, review vendor O&M manuals, review contract for deliverable requirements, analyze proposals, produce cost and schedule estimates, and assist project engineer in the planning and coordination of work effort.
- Lead the checkout and start-up of the new equipment.
- Support engineering assistance to energy centers and other departments within the company on activities requiring experience and expertise with all systems.
- Interface with industry contacts and outside corporations, including consultants, contractors, and their employees.
*Salary depends upon individual credentials, experience, and/or engineer technical path and position market pay level.
Additional Job Description
In addition to the above qualifications, the successful candidate will demonstrate:
Must possess excellent analytical, communication, computer, human relations, and leadership skill. Travel between energy centers and the DRC and outside of the St. Louis area required. Subject to call-outs, nights, weekends and/or holiday work to support power plants.
Compensation Range:
$71,100.00 - $215,300.00* This pay range encompasses multiple levels of the role. Career level and compensation depends upon applicant’s credentials.
At Ameren, base salary is one component of a competitive compensation package for employees. Our pay ranges are broad to allow for movement within our organization and to accommodate different skill sets and levels of expertise. We take into consideration a variety of factors including, but not limited to, skills, abilities, experience, education, credentials, and internal equity when determining the base salary offered. Roles are eligible for additional rewards including annual incentive payments based on individual and company performance.
If end date is listed, the posting will come down at 12:00 am on that date:
Thursday September 10, 2026All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, ethnicity, age, disability, genetic information, military service or status, pregnancy, marital status, sexual orientation, gender identity or expression, or any other class, trait, or status protected by law.
Skills Required
- Bachelor’s degree in Engineering from an accredited college or university
- Professional Engineer license
- Relevant engineering experience
- Experience managing, supervising, or leading people
- Experience with low, medium, and high voltage electrical equipment, including switchgear, motor control centers, motors, transformers, buses, instrumentation and controls, field testing, and industrial equipment troubleshooting
- Experience with protective relaying
- Excellent analytical, communication, computer, human relations, and leadership skills
- Ability to travel between energy centers, the DRC, and outside the St. Louis area
- Ability to support call-outs, nights, weekends, and holiday work at power plants
What We Do
We're Ameren Corporation (AEE), a St. Louis-based, Fortune 500 company that powers the quality of life for millions of people throughout Illinois and Missouri. Ameren Illinois provides electric distribution and transmission service, as well as natural gas distribution service, while Ameren Missouri provides vertically integrated electric service, with generating capacity of over 10,200 megawatts, and natural gas distribution service. Combined, we serve 2.4 million electric and more than 900,000 natural gas customers in a 64,000 square mile area. We're the largest electric utility in Missouri and the second largest in Illinois, and we're among the nation's largest investor-owned electric or gas utility.








