Pontiac, IL • (31.2 miles) • Full Time • 10/14/2026

RFA Engineering (www.rfamec.com) is an engineering service provider dedicated to delivering our clients with timely engineering support and expertise. We are seeking a growth-oriented candidate to become an integral part of our engineering team. The selected candidate will work with an experienced engineering staff using state-of-the-art engineering tools & processes. This position will be onsite at our client's Pontiac, IL facility working with their fuel injector systems. This is a full-time position with a full benefit package listed below that includesopportunitiesfor professional growth, direct hire by our customers, and additional opportunities within our own organization. Mechanical Test Engineer Mechanical Test Engineer will support product development and validation activities for

Pontiac, IL 61764 • (31.2 miles) • Full Time • 10/18/2026

Who We Are As the largest private-sector power producer in the world and the nation's largest producer of clean and reliable energy, Constellation is focused on our purpose: lighting the way to a brilliant tomorrow for all. 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. Now integrated with Calpine, our portfolio includes 55 gigawatts of capacity from nuclear, natural gas, geothermal, hydro, wind and solar facilities, with the generating capacity to power the equivalent of 27 million homes. 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 drivin

Chillicothe, IL 61523 • (39.6 miles) • Full Time • $60.00 to $64.00 / hr • 10/31/2026

Job Title: Glover - Systems Engineer (MineStar Fleet / Autonomous Hauling) Job Description This Systems Engineer role focuses on supporting the MineStar Fleet application and Command for Hauling solutions that enable autonomous mining trucks and staff vehicles. You will play a key role in testing and validating complex fleet management systems that manage productivity, direct vehicle routing, and capture critical operational data at mining worksites. The position is heavily oriented toward test engineering with a blend of IT software responsibilities, working in a sophisticated simulated mine-site environment to ensure reliable performance, scalability, and data integrity. Responsibilities Support the MineStar Fleet application and Command for Hauling products used to operate autonomous mi

Mapleton, IL • (38.8 miles) • Full Time • 10/15/2026

RFA Engineering (www.rfamec.com) is an engineering service provider dedicated to delivering our clients with timely engineering support and expertise. We are seeking an entry to experienced level candidate to become an integral part of our engineering team. The selected candidate will work with an experienced engineering staff using state-of-the-art engineering tools & processes. This position will operate onsite at our customer's world-class engineering and manufacturing facility. This is a full-time position with a full benefit package listed below that includesopportunitiesfor professional growth, direct hire by our customers, and additional opportunities within our own organization. Electrical Engineer The selected candidate will work with an experienced engineering staff supporting th

Pontiac, IL 61764 • (31.2 miles) • Full Time • 10/18/2026

Who We Are As the largest private-sector power producer in the world and the nation's largest producer of clean and reliable energy, Constellation is focused on our purpose: lighting the way to a brilliant tomorrow for all. 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. Now integrated with Calpine, our portfolio includes 55 gigawatts of capacity from nuclear, natural gas, geothermal, hydro, wind and solar facilities, with the generating capacity to power the equivalent of 27 million homes. 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 drivin

Chillicothe, IL 61523 • (39.6 miles) • Full Time • 10/20/2026

RFA Engineering (www.rfamec.com) is an engineering service provider dedicated to delivering our clients with timely engineering support and expertise. We are seeking an entry level to experienced candidate to become an integral part of our engineering team. The selected candidate will work with an experienced engineering staff using state-of-the-art engineering tools & processes. This position will operate onsite at our customer's world-class engineering and manufacturing facility. This is a full-time position with a full benefit package listed below that includesopportunitiesfor professional growth, direct hire by our customers, and additional opportunities within our own organization. Control Systems Engineer As a Control Systems Engineer, you will support the development, testing, and i

Pontiac, IL 61764 • (31.2 miles) • Full Time • 10/18/2026

Who We Are As the largest private-sector power producer in the world and the nation's largest producer of clean and reliable energy, Constellation is focused on our purpose: lighting the way to a brilliant tomorrow for all. 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. Now integrated with Calpine, our portfolio includes 55 gigawatts of capacity from nuclear, natural gas, geothermal, hydro, wind and solar facilities, with the generating capacity to power the equivalent of 27 million homes. 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 drivin

Chillicothe, IL 61523 • (39.6 miles) • Full Time • 10/16/2026

RFA Engineering (www.rfamec.com) is an engineering service provider dedicated to delivering our clients with timely engineering support and expertise. We are seeking an entry-level to experienced candidate to become an integral part of our engineering team. The selected candidate will work with an experienced engineering staff using state-of-the-art engineering tools & processes. This position will operate onsite at our customer's world-class engineering and manufacturing facility. This is a full-time position with a full benefit package listed below that includesopportunitiesfor professional growth, direct hire by our customers, and additional opportunities within our own organization. Technical Support Engineer - Electrical Systems This position will serve as an escalation point for comp

Chillicothe, IL 61523 • (39.6 miles) • Full Time • 10/11/2026

RFA Engineering (www.rfamec.com) is an engineering service provider dedicated to delivering our clients with timely engineering support and expertise. We are seeking a growth-oriented candidate to become an integral part of our engineering team. The selected candidate will work with an experienced engineering staff using state-of-the-art engineering tools & processes. This position will operate hybrid with a minimum of 3 days a week at our customer's world-class engineering and manufacturing facility in Mossville, IL. This is a full-time position with a full benefit package listed below that includesopportunitiesfor professional growth, direct hire by our customers, and additional opportunities within our own organization. Systems Engineer This position willapply the principles of computer