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Principal HVAC Commercial Tech

Constellation Energy

Baltimore, MD · Posted October 26, 2026

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AI use among heating, air conditioning, and refrigeration mechanics and installers is little observed so far. Measured exposure for heating, air conditioning, and refrigeration mechanics and installers: 2% (little observed).

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About the job

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 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.

Total Rewards

Constellation offers an extensive selection of benefits and rewards to help our employees thrive professionally and personally. We provide competitive compensation and a wide-range of benefits that support both employees and their families, helping them prepare for the future. In addition to highly competitive salaries, eligible employees are offered a bonus program, 401(k) with company match, employee stock purchase program; comprehensive medical, dental and vision benefits, including robust wellbeing programs; disability and life insurance benefits; paid time off for vacation, holidays, and sick days; and much more.

Take-home Vehicle: Start your day from home with a company-provided vehicle.

Training & Development: We have an in-house training group to support your career and aid in the development of a path for advancement.

Consistent Opportunities to Work: Technicians enjoy a steady work week even during slower business periods.

Paid Time Off Benefits: 9 paid company holidays, eligible for 11 days paid vacation time and an additional 2 personal choice paid days in your first full year.

Expected hourly range of $44.86 to $54.82 , varies based on experience, along with comprehensive benefits package that includes bonus and 401(k). In addition to your hourly wage, this role has additional earning potential through voluntary overtime and task work opportunities dependent on business need.

Primary Purpose of Position

Performs a wide range of HVAC/Refrigeration services for Commercial customers and promotes the sale of all other services offered by Constellation to customers.

Primary Duties and Accountabilities

Install, maintain, and repair complex HVAC and refrigeration systems, including advanced air conditioning units, heating systems, and refrigeration equipment.

Diagnose and troubleshoot intricate issues with HVAC and refrigeration systems to ensure optimal performance and efficiency.

Perform comprehensive maintenance and inspections to prevent system failures and ensure compliance with safety and industry standards.

Collaborate with team members to complete projects efficiently and effectively.

Read and interpret blueprints, technical drawings, and specifications, to determine the layout and installation requirements.

Maintain accurate records of work performed, including detailed service reports and inventory management.

Stay up to date with the latest industry trends, technologies, and best practices to provide high-quality service.

Minimum Qualifications

State Journeyman HVAC license

EPA certification for handling refrigerants

Demonstrated advanced knowledge of HVAC refrigeration systems, including electrical and mechanical components

Demonstrated excellent critical thinking skills

Proven ability to lead and mentor others

Proven ability to work effectively both independently and collaboratively in team environments

Strong communication and customer service skills

Eligibility to meet Company driving standards, including possession of a valid driver's license

Ability to work weekends and overtime

8-years of work experience in HVAC/ Refrigeration OR

6-years of work experience in HVAC/ Refrigeration and 2-years of related experience OR

6-years of work experience in HVAC/ Refrigeration and have a Master HVAC License

Preferred Qualifications

Completion of a technical school or apprenticeship program

Valid gas fitter's license

Primary Purpose of Position

Performs a wide range of HVAC/Refrigeration services for Commercial customers and promotes the sale of all other services offered by Constellation to customers.

Primary Duties and Accountabilities

Install, maintain, and repair complex HVAC and refrigeration systems, including advanced air conditioning units, heating systems, and refrigeration equipment.

Diagnose and troubleshoot intricate issues with HVAC and refrigeration systems to ensure optimal performance and efficiency.

Perform comprehensive maintenance and inspections to prevent system failures and ensure compliance with safety and industry standards.

Collaborate with team members to complete projects efficiently and effectively.

Read and interpret blueprints, technical drawings, and specifications, to determine the layout and installation requirements.

Maintain accurate records of work performed, including detailed service reports and inventory management.

Stay up to date with the latest industry trends, technologies, and best practices to provide high-quality service.

Minimum Qualifications

State Journeyman HVAC license

EPA certification for handling refrigerants

Demonstrated advanced knowledge of HVAC refrigeration systems, including electrical and mechanical components

Demonstrated excellent critical thinking skills

Proven ability to lead and mentor others

Proven ability to work effectively both independently and collaboratively in team environments

Strong communication and customer service skills

Eligibility to meet Company driving standards, including possession of a valid driver's license

Ability to work weekends and overtime

8-years of work experience in HVAC/ Refrigeration OR

6-years of work experience in HVAC/ Refrigeration and 2-years of related experience OR

6-years of work experience in HVAC/ Refrigeration and have a Master HVAC License

Preferred Qualifications

Completion of a technical school or apprenticeship program

Valid gas fitter's license