Supervisor, Nuclear Maintenance (Mechanical) at Ameren in Steedman, MO

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 ourBenefits & Perks Page for more information on benefits provided to regular full-time employees. ​

About The Position

The Supervisor Nuclear Maintenance 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:

• 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. Bachelor's Degree in Engineering or Physical Sciences from an accredited college or university preferred. Five or more years of relevant technical power plant or similar relevant technical industrial experience is required. Nuclear Power Plant experience is preferred. Supervisory experience is preferred. Experience with valves and/or welding is 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: Tuesday July 21, 2026

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.