Auxiliary Operator

Constellation
Marseilles, IL

WHO WE ARE

As the nation's largest producer of clean, carbon-free energy, Constellation is focused on our purpose: accelerating the transition to a carbon-free future. We have been the leader in clean energy production for more than a decade, and we are cultivating a workplace where our employees can grow, thrive, and contribute.

Our culture and employee experience make it clear: We are powered by passion and purpose. Together, we're creating healthier communities and a cleaner planet, and our people are the driving force behind our success. At Constellation, you can build a fulfilling career with opportunities to learn, grow and make an impact. By doing our best work and meeting new challenges, we can accomplish great things and help fight climate change. Join us to lead the clean energy future.

TOTAL REWARDS

Constellation offers a wide range of benefits and rewards to help our employees thrive professionally and personally. We provide competitive compensation and benefits that support both employees and their families, helping them prepare for the future. In addition to highly competitive salaries, we offer a bonus program, 401(k) with company match, employee stock purchase program; comprehensive medical, dental and vision benefits, including a robust wellness program; paid time off for vacation, holidays, and sick days; and much more.

Start Date: June 9, 2026

Starting pay rate: $40.15/Hr. (non-negotiable)

PRIMARY PURPOSE OF POSITION

The qualified candidate will be responsible for the following: Regularly and customarily is responsible for the monitoring, control and operation of nuclear station equipment for the control room.

This includes the following, together with other related and incidental work.

1. Starts, stops, controls and monitors nuclear reactor and auxiliary reactor systems, as required for plant operations, including taking manual control of equipment as conditions warrant. Starts, stops, controls and monitors steam turbine, main generator and auxiliary turbine generating equipment as required to maintain maximum station capability, including taking manual control of equipment as conditions warrant.

2. As directed, starts, stops, adjusts, tests and operates pumps, valves, switchgear, controls and other components of systems.

3. Monitors recorders and indicators within the control room for the nuclear and turbine generator systems for operation within prescribed limits. Obtains overview data and performs various calculations as required by procedure.

4. Responds to plant indicators and alarms in accordance with plant procedures including identifying those parameters that are indicative of an emergency condition and initiating designated actions.

5. Performs operations in accordance with administrative procedures and NRC license including shift turnovers, log maintenance, etc.

6. Responds to and takes action as required in mitigating consequences of plant transient. Required to be thoroughly familiar with entry conditions and cautions for the emergency operating procedure and the basis of each step in the procedures. Required to be familiar with the abnormal operating event procedures and system diagnostic and restoration procedures.

7. Participates as a member of station fire brigade and will be required to function as fire brigade leader.

8. Assists shift supervision in the performance of any and all of the duties involved in directing and coordinating the actions of the other personnel assigned to assist in operation of the station. 9. Responsible to identify and correct deficient conditions through the use of the station Corrective Action program, initiating action requests for material condition issues and submitting Procedure change requests.

10. Initiates Emergency Plan in accordance with implementing procedure.

11. Implements tagging and system out-of-service requests, including directing others to realign valves, rack out breakers and hang tags.

12. During refueling of the reactor, manipulates controls, drives, etc. and observes nuclear and radiation monitoring instruments in accordance with procedural controls. May be required to assist in refueling.

13. Operates station communications equipment as required.

MINIMUM QUALIFICATIONS

  • Candidates must possess a High school Diploma or GED AND ONE of the following:
  • 1 year of technical experience, which includes any of the following: work performed in power production, petrochemical or other industrial process plants during operational, maintenance, design, or training activities. Alternative relevant experience examples include operation and maintenance of equipment, such as HVAC, electrical and maintenance technicians. OR
  • 2 years of experience in operations or maintenance of a non-generating nuclear power facility (e.g. Navy Nuclear operations or maintenance training/experience or operations or maintenance experience at a DOE facility) OR
  • A Bachelor of Science degree in engineering, engineering technology, or related science program OR
  • An Associates of Science degree in engineering, engineering technology or related science program OR
  • 43 credit hours of post-secondary education of which 75% (at least 8 courses or 32 hours) is advanced math, physics, chemistry and/or engineering/engineering technology.
  • TESTING REQUIREMENTS: Candidates must pass the Plant Operator Selection System (POSS) Examination
  • Score satisfactorily on the Basic Math and Science Test (BMST)
  • Candidate must be able to obtain unescorted access to a nuclear facility as a member of a critical group.
Posted 2026-03-18

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