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 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. Join us in meeting the country's energy needs today and tomorrow.

We are currently seeking highly motivated Mechanical Engineering students for Engineering Internships for 2027 to work in person at our location in Coyote, CA – Metcalf Energy Center. These paid internships will last approximately 10 weeks starting June 7th, 2027 through August 13th, 2027. Interns will work on specific projects, designed to help them gain real-world, hands-on experience working independently under an assigned supervisor and technical mentor.

Essential Duties and Responsibilities

Assist Plant Engineer in day-to-day engineering tasks

Assist Plant shift operations including local starting and stopping of equipment.

Assist in Maintain shift operating logs and records when required.





Read and record gauges and meters when required.

Assist while under direct supervision by a qualified Calpine Employee with mechanical and electrical maintenance tasks, inspections, and troubleshooting.

Assist in development of standard procedures for operations.

Assist with Maintaining plant chemistry logs and records.

Assist with the requisition spare parts inventory for plant equipment.

Perform other duties as assigned while under the direct supervision of a Calpine employee.

Report to and take day-to-day instructions, both written and verbal, from the Plant Engineer, Plant Manager and Operations Manager The above statements reflect the general details considered necessary to describe the essential functions of the job and are not to be construed as a detailed description of all the work requirements that may be inherent in the position

Job Requirements

Pursuing a degree in Mechanical Engineering at an accredited college or university

Juniornstanding, preferred.

Legally eligible to work in the United States now and in the future for any company.

Willingness to work outdoors, in field locations, in a "hands on" environment.

Willingness to adhere to plant safety standards, procedures, and practices.

Good comprehension of basic engineering practices.

Good problem solving and analytical ability.

Strong computer skills especially in the use of spreadsheet and word processing programs.

Strong verbal and written communication skills.

Good organization skills and attention to details are essential

Must be adaptable and able to work harmoniously with others in a dynamic environment.

Must be able to self-start and manage multiple simultaneous tasks and priorities.

Must have reliable transportation to and from work.

📌 2027 Mechanical Engineering Intern - Metcalf Energy Center (Coyotepec)
🏢 Constellation Energy Generation
📍 Coyotepec