System Tester in Training

Ameren; Maryland Heights (MO); On-site; USD 96,000 - 110,000; Full time

Job summary

Ameren Missouri is recruiting a trainee System Tester to learn under supervision and progress toward skilled testing roles. The program covers testing, calibration, repair of relays and metering devices, and safety-compliant operations in varying environments.

The role includes handling equipment, driving to job sites, and advancing through stages of training with increasing independence. A strong technical foundation and CDL are required.

Qualifications

• Graduation from high school or successful completion of a recognized high school equivalency examination.
• Must pass the E.E.I. Technical Aptitude Test.
• Successfully complete the Evaluation Stage (EV) with a grade of 80% or higher.
• Course requirements from an ABET accredited college with an Associate in Electrical or Electronics Technology; grade C or higher.
• OR a two-year Associate Degree in Electrical or Electronic Technology from a recognized institution; coursework includes AC/DC, microprocessors, digital logic, PLC; grade C or higher.

Responsibilities

• Test, calibrate, and repair relays and metering devices.
• Trace out, locate, and repair trouble.
• Perform tests on system equipment and customer equipment.
• Test insulating qualities and interpret insulation test results.
• Make functional tests of control circuits.
• Make complete and comprehensive load checks.
• Test reclosers and sectionalizing devices.
• Prepare necessary reports.
• Switching, test and operate equipment with safety responsibilities.

Skills

High school diploma

Technical aptitude test

Safety awareness

Education

Associate in Electrical or Electronics Technology

Two-year Associate Degree in Electrical or Electronic Technology

ABET accreditation or equivalent coursework

Commercial Driver’s License

Tools

Schematic/Wiring Print course

Job description

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

Position(s): 5

Hourly Rate Range: $46.02 - $52.87

*Please include your transcripts in your application.*

Under immediate supervision, working as a member of a System Relay Services test crew or with a management person in the capacity of a learner in training for advancement to a skilled System Tester, over a normal 112-week period and in accordance with a planned program, to receive instructions and perform the work of a System Tester; to perform such work under the direction of a journeyman or management person; to do similar and less skilled work as required. As the trainee progresses in the program, the trainee shall be taught and shall perform more complex work with an increasing level of independence and responsibility. To the degree indicated in the various stages of training, to perform work such as:

• Test, calibrate, and repair relays and metering devices.
• Trace out, locate, and repair trouble.
• Perform tests on system equipment and customer equipment.
• Test insulating qualities, perform necessary calculations and interpret the results of insulation tests.
• Make functional tests of control circuits.
• Make complete and comprehensive load checks.
• Test reclosers and sectionalizing devices.
• Prepare necessary reports.
• Switching, test and operate equipment with Workman’s Protection Assurance responsibilities.

Special Responsibilities

For service continuity and quality to the extent that these factors depend on accurate adjustment and proper functioning of the relays or other control equipment which is tested, adjusted, or repaired.

For equipment to the extent that its protection, when operating, depends on the proper functioning of relays and other devices which are tested, adjusted, and repaired.
For the safety of others to the extent that the trainee’s performance might affect others; with advancement in the stage of the training, by making sure that equipment to be worked on is clear before others start to work. Trainees are expected to obey all safety rules and regulations.

To drive a vehicle carrying tools and test equipment. For special care to prevent damage to the vehicle and the test equipment to the extent its operating is critical for calibration of relays.

For special care to prevent personal errors in the testing and calibrating of relays and other control devices and in reporting data.
Some assignments may require overnight stays.CONTACT:
With employees of other departments, customer representatives, outside contractors and other utilities.WORKING CONDITIONS:
Subject at times to outside weather conditions or work in unheated buildings; however, outdoor work is normally suspended in especially inclement weather. Subject at times to high temperatures, dirt, vibration, and to working in high places.

HAZARDS:
Hazards result principally from the possible failure of nearby electrical equipment and the dangers from any relaxation of the care required while working around high voltage apparatus.
Subject to the danger of falling while handling test cables on equipment located at various heights above ground, while climbing steel structures or working atop oily transformers, circuit breakers, etc. Subject to possible electrical shock while working on equipment under test.

Qualifications

• Graduation from high school or successful completion of a recognized high school equivalency examination
• Must pass the E.E.I. Technical Aptitude Test
• Successfully complete the Evaluation Stage (EV) with a grade of 80% or higher.
• Course requirements from an A.B.E.T. (Accreditation Board for Engineering and Technology) accredited college with an Associate in Applied Science Degree in Electrical or Electronics Technology. Must have a grade of C or higher for each course;
• OR
• A two-year Associate Degree in Electrical or Electronic Technology or related field from a recognized technical learning institution (Rankin, ITT, etc.). Coursework must include AC/DC, microprocessors, digital logic, PLC with a grade of C or higher in all coursework.
• Applicants who did not received their degree from an A.B.E.T. accredited institution must complete and pass an AC/DC equivalency test with a grade of 50% or higher.
• The Ameren Missouri Schematic/Wiring Print course and received a grade of C or higher or an equivalency test.
• Must be able to secure and maintain an applicable Commercial Driver’s License.
• Must be able to meet the applicable requirements for working at Callaway Plant

*Please include your transcripts in your application.*

Hourly Pay

Grade Step IA 135 Step 1 of 4 - 46.02 USD

Grade Step IA 135 Step 2 of 4 - 47.70 USD

Grade Step IA 135 Step 3 of 4 - 49.42 USD

Grade Step IA 135 Step 4 of 4 (Top Step) - 52.87 USD

Position is eligible for annual incentive payments based on company performance and subject to sole management discretion. Visit our Benefits & Perks Page for more information on benefits provided to regular full-time employees.

If end date is listed, the posting will come down at 12:00 am on that date:

Wednesday October 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.