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Staff Chemist

Ameren Services Company
paid holidays, 401(k)
United States, Missouri, Steedman
Mar 09, 2026

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 parentalleave and family caregiver leave

Visit our Benefits & Perks Page for more information on benefits provided to regular full-time employees.

About The Position

The Staff Chemist position is responsible for providing technical assistance, support, and oversight for the implementation of the various chemistry programs to promote the safe, effective, and reliable nuclear plant operation.

Key responsibilities include:

  • Provide technical assistance, support, and oversight for the implementation of the primary coolant chemistry, secondary coolant chemistry, closed cooling water chemistry, and open cooling water chemistry programs.
  • Provide technical assistance and support for the demineralized water system.
  • Provide technical assistance and support for the implementation of programs that ensure compliance with environmental regulations and the NPDES Permit.
  • Coordinate and implement the Hazardous Material Control Program.
  • Coordinate and implement the Chemical Control Program.
  • Coordinate and implement the Diesel Fuel Oil Testing Program.
  • Review and provide recommendations concerning the operation and maintenance of the station potable water system.
  • Review and provide recommendations concerning the operation and maintenance of the station wastewater treatment system.
  • Provide technical assistance and oversight in response to chemical spills.
  • Review chemical and radiochemical data for trends, potential problems, and compliance with limits.
  • Develop and supervise special projects for non-routine chemical and radiochemical testing related to plant systems in order to investigate problem areas and to provide corrective action recommendations.
  • Lead and coordinate special chemistry related projects.
  • Prepare reports on chemistry of plant systems and on special projects.
  • Provide technical assistance to Radwaste staff in the monitoring of liquid radwaste treatment system performance.
  • 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 RERP response time.
  • Provide oversight for the development of new analytical procedures to ensure compliance with appropriate standards and to ensure the development of appropriate QA/QC requirements.
  • Implement the Callaway Chemistry Laboratory Quality Assurance (QA) / Quality Control (QC) Program.
  • Prepare reports on the laboratory quality control performance.

Senior Staff Chemist will hold the additional responsibilities:

  • Coordinate and implement the Hazardous Material Control Program.
  • Provide technical assistance and supervision in response to chemical spills.
  • Review and provide recommendations concerning the operation and maintenance of the station potable water system.
  • Review and provide recommendations concerning the operation and maintenance of the station wastewater treatment system.
  • Coordinate and implement the Chemical Control Program.
  • Supervise, direct, and coordinate activities at the Callaway Energy Center as assigned.

Qualifications

Staff Chemist:

Bachelor of Science or higher degree in Chemistry, Chemical Engineering, Environmental Engineering, Biology or other related scientific field from an accredited institution required. Two or more years of

relevant experience is required. In lieu of degree, candidates with 6 or more years of directly relevant chemistry experience may be considered. Chemistry laboratory or Chemical engineering experience preferred. Nuclear power plant experience preferred. Radiochemistry experience preferred.

Senior Staff Chemist:

Bachelor of Science or higher degree in Chemistry, Chemical Engineering, Environmental Engineering, Biology or other related scientific field from an accredited institution required. Two or more years of

relevant experience is required. In lieu of degree, candidates with 6 or more years of directly relevant chemistry experience may be considered. Chemistry laboratory or Chemical engineering experience preferred. Nuclear power plant experience preferred. Radiochemistry experience preferred.

*Technical career path level depends upon applicant's credentials.

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

Good decision making, verbal and written communication, and human relations skills required. Security screening required for Callaway Energy Center access.

The Staff Chemist position works a standard day shift in an office/plant environment. Additional hours and/or rotating shifts may be required during refueling outages and emergent plant activities as the needs arise.

Additional Information

The Chemistry Staff position works a standard day shift in an office/plant environment. Additional hours and/or rotating shifts may be required during refueling outages and emergent plant activities as the needs arise.

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:

$71,100.00 - $172,200.00

* 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:

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.

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