St. Louis, Missouri, United States · On-site
$21/hr–$30/hr
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 custo…
Skills: Mechanical engineering, Energy industry knowledge, Infrastructure design, Project management, Technical communication
St. Louis, Missouri, United States · On-site
$21/hr–$30/hr
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 custo…
Skills: Civil engineering, Infrastructure design, Project management, Energy industry knowledge
St. Louis, Missouri, United States · On-site
$21/hr–$30/hr
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 custo…
Skills: Electrical Engineering, Energy Industry Knowledge, Infrastructure Design, Project Support
St. Louis, Missouri, United States · On-site
$21/hr–$30/hr
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 custo…
Skills: Civil Engineering, Infrastructure design, Project management, Energy industry knowledge, Communication
St. Louis, Missouri, United States · On-site
$21/hr–$30/hr
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 custo…
Skills: Engineering, Problem solving, Professional development, Networking
St. Louis, Missouri, United States · On-site
$21/hr–$30/hr
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 custo…
Skills: Engineering, Networking, Professional growth, Problem solving
St. Louis, Missouri, United States · On-site
$21/hr–$30/hr
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 custo…
Skills: Electrical engineering, Infrastructure design, Project support, Energy industry knowledge
St. Louis, Missouri, United States · On-site
$21/hr–$30/hr
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 custo…
Skills: Mechanical engineering, Energy industry knowledge, Infrastructure design, Project management, Technical communication
St. Louis, Missouri, United States · On-site
$21/hr–$30/hr
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 custo…
Skills: Civil engineering, Infrastructure design, Project management, Energy industry knowledge
St. Louis, Missouri, United States · On-site
$89k–$137k/yr
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 l…
Skills: Damage prevention, Claims management, Contract administration, Data analysis, Regulatory compliance
St. Louis, Missouri, United States · On-site
$110k–$130k/yr
A growing environmental services contractor with decades of experience delivering complex remediation, earthwork, industrial, and emergency response projects, is seeking a Site Superintendent to lead field operations thr…
Skills: Environmental remediation, Heavy earthwork, Site supervision, Project management, Safety compliance
Quinte West, Ontario, Canada · On-site
$124k–$280k/yr
Industry/Sector Not Applicable Specialism Operations Management Level Senior Manager Job Description & Summary The Opportunity As a Digital Grid Modernization Lead, Senior Manager, you will play a pivotal role in oversee…
Skills: Digital grid modernization, IT operations management, ITSM frameworks, Vendor management, Service recovery
St. Louis, Missouri, United States · On-site
$21/hr–$30/hr
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 custo…
Skills: Linux, Windows Server, Oracle, Sql Server, Cassandra
Fenton, Missouri, United States · On-site
$72k–$109k/yr
Building a career at Granite may be the most valuable thing you could do... Find your dream job today, and be part of something great. Our most powerful partnership is the one we have with our employees. Our people are o…
Skills: Sales, Water well drilling, Pump installation, Client relationship management, Lead generation
St. Louis, Missouri, United States · On-site
$21/hr–$30/hr
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 custo…
Skills: Mechanical engineering, Energy industry knowledge, Infrastructure design, Project support, Technical communication
St. Louis, Missouri, United States · On-site
$21/hr–$30/hr
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 custo…
Skills: Mechanical engineering, Energy industry knowledge, Infrastructure design, Project support, Technical communication
St. Louis, Missouri, United States · On-site
$21/hr–$30/hr
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 custo…
Skills: Electrical engineering, Power systems, Energy industry, Transmission projects, Infrastructure design
Phoenix, Arizona, United States · Remote OK
$120k–$160k/yr
GFT is seeking a Project Manager to join our team. If you are in Chicago, IL, Phoenix, AZ, Charlotte, NC, St. Louis, MO, Marlton, NJ, Roanoke, VA, or Monroeville, PA this position would be Hybrid. However for the right c…
Skills: Project management, Contract negotiation, Budget management, Risk management, Project scheduling
St. Louis, Missouri, United States · On-site
Bilfinger is a leading international industrial services provider, driving efficiency and sustainability for the process industry. With 30,000+ employees and over €5 billion in revenue in 2024, we offer solutions in cons…
Skills: HSE management, Industrial construction, Maintenance, Turnarounds, Risk assessment
St. Louis, Missouri, United States · On-site
$21/hr–$30/hr
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 custo…
Skills: Civil Engineering, Infrastructure Design, Project Management, Energy Industry Knowledge, Communication
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The co-op will gain real-world experience by supporting mechanical engineering projects within the energy sector. They will contribute to Ameren's mission by assisting in the design and development of regional infrastructure and energy solutions.
Candidates must be current students pursuing a Bachelor's or Master's degree in Mechanical Engineering at an accredited institution. A minimum cumulative GPA of 2.5 is required for consideration.
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.
Visit our Benefits & Perks Page for more information on benefits provided to regular, full-time employees.
It's an exciting time to be a part of the evolving energy industry! Ameren's collegiate internship and co-op program is all about providing real work experience, networking opportunities, and professional growth.
Ameren Corporation is a Fortune 500 company that trades on the New York Stock Exchange under the symbol AEE. It is the parent company of Ameren Illinois, based in Collinsville, Ill., and Ameren Missouri in St. Louis. Ameren Transmission Company, also based in St. Louis, designs and builds regional transmission projects.
Employing more than 9,000 personnel, Ameren powers the quality of life for 2.4 million electric customers and more than 900,000 natural gas customers across a 64,000-square-mile area. Ameren Missouri ranks as the largest electric power provider in Missouri, and Ameren Illinois ranks as Illinois' third largest natural gas distribution operation in total number of customers.
This general posting will be used to collect applications for our 2027 Mechanical Engineer Spring Co-Op openings across the states of Illinois and Missouri.
The options for collegiate employment are:
January – August Co-Op
Ameren responds to our changing industry by providing new solutions for tomorrow's energy needs. All collegiate coworkers directly impact Ameren's mission to Power the Quality of Life.
Ameren is located throughout Missouri and Illinois. Location decisions will be made as soon as possible during the hiring process. If you are selected for an intern or co-op position, please note that Ameren does offer a housing stipend to interns and co-ops who are temporarily relocating, if minimum housing stipend requirements (living & attending school 50+ miles away from your working location) are met.
We will provide more information about each opportunity at time of interview.
We take into consideration a variety of factors including, but not limited to, skills, abilities, experience, education, credentials, and internal equity when determining the salary offered.
$21.00 - $30.00Offices: 1710 GRATIOT ST, Saint Louis, Missouri 63103, us
View all jobs at Ameren ServicesThere are currently 198 open energy positions in St. Louis, MO listed on Clera. New openings are added daily as companies post roles.
Companies currently hiring include Ameren Services, HDR, Birch Creek Energy, Accenture, Clean Harbors, among others. Browse the listings above to see every active employer.
Yes — 66 of the 198 open energy positions offer remote or hybrid work (16 remote, 50 hybrid).
Each listing links directly to the employer's application page. Apply early — fresh listings get the most recruiter attention in the first two weeks.
