Six Figure Work

Instrumentation & Control Maintenance Supervisor

Ameren

Company websiteameren.com (Ameren, opens in new tab)

Base salary $105,100  to $162,900

Employer-published annual base salary, USD. Advertised base range in Steedman, MO

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  • LocationSteedman, MO
  • WorkplaceWorkplace not stated
  • Status at last checkSource accepting applications when checked
  • Last checked (1 h ago) · observed since

About this job

About the Callaway Energy Center

The Callaway Energy Center is a nuclear facility located in mid-Missouri. The Energy Center has more than 800 employees and contractors working at the facility, and it has established a strong record of safe operation throughout its 30-year operating history. The Energy Center is a highly efficient, low-cost, sustainable source of electricity for Ameren Missouri’s 1.2 million customers.

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 Supervisor Instrument & Control directs the work of skilled personnel in work tasks and/or support activities for the maintenance, replacement, installation and removal of equipment in the power plant and associated structures to assure safe, reliable, and uninterrupted operation.​​ 

Key responsibilities include: 

  • Responsible for the calibration, testing and corrective maintenance of instruments and controls at the Callaway Energy Center 

  • Supervise the activities if I&C technicians or assign technicians to work as directed by plant engineers or other specified personnel during normal and outage operations. 

  • Control measuring and test equipment at Callaway Energy Center as described in section 12 of the Callaway Energy Center Operating Quality Assurance Manual (OQAM). 

  • Supervise maintenance personnel in performance of predictive, preventive, and corrective maintenance and related surveillance testing. 

  • Perform the planning, scheduling and assignment of work, and/or assist Planning & Scheduling department supervisors in work scheduling and coordination. 

  • Ensure safe and efficient use of manpower and resources, promoting high standards of workmanship, maintaining high level of equipment reliability and training of personnel in proper work practices. 

  • Ensure work activities are performed in accordance with applicable procedures and policies in an efficient manner. 

  • Ensure documentation of completed work activities is complete and accurate. 

  • Perform special studies and projects as assigned by Maintenance Department management. 

  • Assume Emergency Response Organization (ERO) duties in accordance with Callaway Energy Center Radiological Emergency Response Plan (RERP) including responding to assigned ERO facilities within the required response time. 

Qualifications 

​​​​​​High School Diploma or equivalent required.  Bachelors Degree in Electrical Engineering with emphasis in instrumentation from an accredited institution preferred. Five or more years experience in Instrumentation and Controls required. Nuclear power plant Operations or I&C experience preferred.  Experience as a Training Instructor preferred.​​​​​ 

In addition to the above qualifications, the successful candidate will demonstrate: 

 ​​​Good decision making, leadership, communication and human relations skills required. After preliminary review, selected applicants must take the First Line Supervisor Test and obtain a recommended status in order to be eligible for additional selection procedures (e.g., interview) designated for this position. Qualified candidates are required to establish and maintain their permanent residence within sixty highway miles of the Callaway Energy Center.  Security screening required for Callaway Energy Center access.​​ 

Working Conditions 

​​​The Maintenance Supervisor works a standard day or evening shift in an office/plant environment.  Additional hours, callouts and/or rotating shifts may be required during refueling outages and emergent plant activities as the needs arise.   ​​ 

Additional Information 

Ameren’s selection process includes a series of interviews and may include a leadership assessment process.  Specific details will be provided to qualified candidates. 

Compensation Range:

$105,100.00 - $162,900.00

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:

All 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.

Source: Ameren on Workday · View original posting (opens in new tab)

Pay in context

This role's base floor ($105,100) is above 16% of the 147 Skilled Trades & Maintenance roles nationwide listed on this site. Their median floor is $123,000; the middle half runs from $110,250 to $145,500.

Only jobs on this site count, and each one publishes a base salary of $100,000 or more, so this compares six-figure jobs with each other, not with the whole market. Computed Nov 7, 2026.

This range next to 6 other live Ameren roles with the nearest advertised base floor
Chart as a table
This range next to 6 other live Ameren roles with the nearest advertised base floor
RolePublished base
Instrumentation & Control Maintenance Supervisor (this listing)$105,100 - $162,900
Senior Reactor Operator$105,100 - $162,900
Supervisor Gas Operations$107,500 - $166,600
Supervisor, Distribution Services$107,500 - $166,600
Shift Supervisor I$107,500 - $166,600
Project Risk Manager (West Alton)$111,100 - $172,200
Manager, Project Procurement (New Gas Generation and Renewables)$113,600 - $176,100

Same $100K to $400K scale as every card. All Ameren roles · How to read the bar

Observed changes

  1. First observed on the employer's board
  2. Began meeting the published-salary criteria
Observed since
Employer-stated posting date
2026-08-13
Where this pay comes from

Location as the employer wrote it: Steedman, MO

$105,100.00 - $162,900.00

Method
Employer text, read with fixed rules and re-verified
Checked
Rule set
us-base-v2

The pay passage appears in the employer's own job text. Fixed, deterministic rules located it, and the passage below was checked against the stored copy of the posting.

What we verified

  • The pay figures come from the employer's own listing, quoted exactly above.
  • The pay is an annual base salary in US dollars with a minimum of at least $100,000.
  • The role was publicly listed on the employer's job board when last checked.

We do not verify what the employer will actually offer, whether the employer is still recruiting for the role, or anything beyond what the employer published. Full methodology.