Calpine is now Constellation. Your career search starts here.
CONSTELLATION AND CALPINE UNITE
One Powerful Future.
Constellation and Calpine have combined to create the nation's largest clean energy producer, delivering reliable power that keeps our country moving forward. Constellation employees are building the foundation for America’s next great era of innovation – powering the data centers, advanced manufacturing facilities and critical infrastructure that will define the AI age and secure the nation’s economic leadership.
| Together, we’re creating healthier communities and a cleaner planet.
At Constellation, you can have a rewarding career where you apply your talents and interests to accelerate the transition to an emissions-free future. Whether you want to make a difference or learn and grow to create a clean energy future, we foster a connected and caring environment where everyone is empowered and can have an impact.
AT A GLANCE
Constellation by the Numbers
Baltimore, Maryland
Constellation's Headquarters
146
Generation Facilities
29
Satellite Offices
Coast-to-Coast
Nation's largest producer of reliable and clean energy
Fortune 200 Company
Constellation has been named a Fortune 200 company. This annual ranking recognizes Constellation's position among the top 200 largest companies in the U.S. by revenue, and as an industry leader in the energy sector.
16,500+ Employees
Our passionate team of people are curious, collaborative, and continuous learners with opportunities to solve new problems every day.
27M Homes
Constellation’s fleet has a capacity of 55 gigawatts and provides about 10% of the nation’s clean energy, generating enough to power the equivalent of 27M homes.
RECOGNITION & AWARDS
Recognized for the Way We Work
83%
Say it's a great place to work
Great Place to Work® Certified™
Constellation employees understand that work isn’t a place you go; it’s how you connect to the greater good. In fact, Constellation has been Certified™ by Great Place to Work® for four years in a row. In a 2026 survey of about 5,000 Constellation employees, 83 percent of those who responded said it is a great place to work – about 26 points higher than the average U.S. company.
2026
Fortune Best Workplaces in Manufacturing & Production™
For the third year in a row, Constellation was awarded Fortune Best Workplaces in Manufacturing & Production, ranking #7 on the 2026 list.
We are committed to creating positive work experiences for all employees and passionate about driving the clean energy future. We are purpose-built to help lead the industry in emissions-free energy, creating healthier and more vibrant communities for our employees, their families, and our customers.
2025
Best for Vets: Employer
Military Times has named Constellation a 2025 Best for Vets: Employer. This honor reflects our commitment to building a workplace where veterans and reservists can thrive.
Constellation values the dedication and expertise of our military community. We empower veterans through initiatives that promote recruitment, retention, recognition of military service, and inclusive workplace policies. Veterans are encouraged to make a meaningful impact at Constellation, while continuing to serve their communities.
2025
Fortune Best Workplaces for Women™
Named on the 2024 and 2025 Best Workplaces for Women™ lists. Supporting and developing our employees in each chapter of their lives and careers means providing a connected and caring environment that meets their diverse needs.
This recognition reflects our commitment to creating positive work experiences for all employees regardless of their role, tenure or background. Employee feedback shows that self-identified women rate their work experience as positively as other survey participants at Constellation.
2024
Fortune Best Workplaces for Parents™
Named to the 2024 list based on our family caregiving benefits and direct employee feedback.
This award exemplifies our commitment to creating positive work experiences for all our employees, ensuring everyone feels valued and supported in the many dimensions of their lives.
DISCOVER YOUR NEXT CAREER
Where Will You Start?
Constellation is the nation’s largest producer of emissions-free energy and provides sustainable solutions to millions of homes and businesses, including 80% of Fortune 100 companies. Learn more about our business to see where you can start your journey at Constellation.
RUN THE FLEET
Generation
Generation consists of nuclear, wind, geothermal, solar, natural gas, hydro facilities and office areas. Opportunities are available in:
Constellation’s Commercial business is designed to empower customers in how they buy, manage, and use energy and help them meet their clean energy goals. Roles are available in:
We provide support, resources and educational opportunities to all employees.
TOTAL REWARDS
Benefits
At Constellation, we put our people first with competitive benefits and career development opportunities. Learn about how you will be supported with total rewards.
At Constellation, we encourage our passionate workforce to do their best work, meet new challenges, and accomplish great things. Learn more about our culture and how we make an impact.
At Constellation, we recognize and value the unique skills and experiences that veterans bring to our workforce. We are committed to supporting our veteran and active military employees and providing them with the resources they need to thrive in their careers. Learn more about our initiatives and how we support our military community.
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