Mechanical Design Engineer - Clean Energy

Constellation Energy

Constellation Energy

Location

Thomson, IL, 61285

Job Type

Full Time

Date Posted

21 April 2026

About Us

Join Constellation, the nation's largest producer of clean, carbon-free energy, as we lead the charge towards a sustainable future. Our mission is to accelerate the transition to a carbon-free future, and we're proud to have been at the forefront of clean energy production for over a decade. Here, you'll find an environment where your passion and purpose can truly thrive. Together, we are committed to creating healthier communities and a cleaner planet, and our talented workforce is the key to our success. At Constellation, you'll have the opportunity to build a fulfilling career while making a meaningful impact in the fight against climate change.

The Mechanical Design Engineer role is based at our Quad Cities Generating Station in Cordova, IL.

Total Rewards

We're dedicated to supporting our employees both professionally and personally with a comprehensive benefits package. Enjoy competitive salaries, a bonus program, a 401(k) plan with company match, an employee stock purchase program, and extensive medical, dental, and vision coverage, including a robust wellness program. We also offer paid time off for vacation, holidays, sick days, and more.

*****************This Engineering role can be filled at Entry-level, Mid-level or Senior Engineer level. Please see minimum qualifications list below for each level***********************************

Entry Level - $87,000
Mid Level - $92,700-$114,000
Sr Level - $122,400-$154,000

Ranges are per year based on experience, along with a comprehensive benefits package that includes bonus and 401K.

Primary Purpose of Position

As a Mechanical Design Engineer, you will perform a variety of engineering and technical tasks to support nuclear plant operations under general supervision.

Key Responsibilities

  • Execute engineering and technical assignments as directed by management, utilizing general engineering principles.
  • Ensure all engineering products adhere to applicable safety analyses, industry codes, and regulatory standards.
  • Engage in the development and application of effective processes and methods, ensuring compliance with established policies and procedures.
  • Propose improvements to standard processes and methodologies.
  • Fulfill additional job assignments or duties as per company policy or management directives, including emergency response and outage support activities.

Minimum Qualifications

For Entry Level E01 Engineer – New Graduates:

  • B.S. in Engineering (Mechanical, Chemical, Civil/Structural, Electrical, Industrial, or Nuclear).
  • Compliance with access requirements and favorable medical examination/testing conditions as needed.

For Mid-level E02 Engineer:

  • B.S. in Engineering with at least 2 years of nuclear or relevant engineering experience.
  • Meeting additional criteria as defined by ANSI/ANS-3.1-2014 Standard.
  • Compliance with access requirements and favorable medical examination/testing conditions as needed.

For Senior E03 Engineer:

  • B.S. in Engineering with a minimum of 5 years of nuclear or related engineering experience.
  • Meeting additional criteria as defined by ANSI/ANS-3.1-2014 Standard.
  • Compliance with access requirements and favorable medical examination/testing conditions as needed.

Preferred Qualifications

  • Engineer in Training (EIT) certification.
  • A solid understanding of relevant techniques and the fundamental functions performed by the team.

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