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 Location: West Alton, MO (St. Charles County) — near New Town and Alton, IL Facility: Sioux Energy Center About the Facility This role is located at Sioux Energy Center in West Alton, Missouri—a major industrial power facility generating approximately 972 MW of electricity from two high-capacity steam turbine units. The indoor environment features expansive turbine halls, advanced steam systems, large maintenance workshops equipped for heavy-duty industrial equipment, and secure control centers—offering extensive space ideal for repair, technical, and hands-on roles. Summary You will perform precision welding and heavy mechanical repair work across power plant equipment to support safe and efficient plant operations. Key Responsibilities Troubleshoot and perform highly skilled electric arc and gas welding, cutting, brazing, pipefitting, and insulation installation/removal on power plant equipment. Perform certified welding on boiler pressure parts, pressure vessels, and piping in accordance with ASME codes, subject to insurance underwriters’ inspection/certification. Execute a broad range of mechanical maintenance, including: Repair/replacement of boiler tubes Structural steel erection Replacement of liner plates in fans, coal chutes, and hoppers Welding repairs to castings and equipment Piping/valve work (measuring, layout, cutting, threading, bending, fitting, installation) Replacement of flange, valve, and heater gaskets; valve repacking, repair, overhaul Cleaning/replacement of condenser and heat exchanger tubes Where applicable, repair of traveling water screens Working Conditions & Hazards Full range of temperatures from very hot to sub-freezing; sudden changes may occur. Exposure to noise, dust, dirt, fumes, odors, drafts, inclement weather, heights, and confined spaces. Hazards typical of welding and heavy industrial maintenance work, including burns, flashes, and risks related to elevated work and energized equipment areas. Qualifications High School Diploma or GED AND either: Completion of a 2 year technical college program and 5 years working as a Certified Welder Repairman, OR Completion of a certified apprentice program and 5 years working as a Certified Welder Repairman, OR Ten (10) years working as a Certified Welder Repairman. Must be able to climb ramps, ladders, and stairs, work at heights and in confined spaces. Department This position is within our Energy Center Shop Maintenance Department. Additional Information Ameren’s selection process includes a series of interviews and may include candidate testing and/or an individual aptitude or skill-based assessment. Specific details will be provided to qualified candidates. Hourly Pay: Grade Step OA 059 Step 1 of 1 (Top Step) - 52.97 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: 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. Ameren is a leader in the energy industry, and our transformation toward more clean, renewable energy is also transforming other industries and infrastructure in our communities. As a regional company serving local customers, we not only serve our communities, we're a part of them. This isn't just a job. At Ameren, we invest in you, so you can power the quality of life you want. Please be aware that Ameren uses artificial intelligence (AI) in connection with its recruitment and employment processes. However, all final hiring and employment decisions are made by a human.

Certified Repairman (Industrial Welder/Boilermaker/Pipefitter).

more at Ameren.

Building Service Mechanic

Mechanical Engineer

Journeyman Lineman - Belleville

similar roles.

Commercial Property Loss Adjuster

Leave of Absence Coordinator