Sr Staff Engineer, Mechanical

Company : Constellation Energy
Location : Marseilles, IL, 61341
Posted Date : 15 September 2025
Job Details
WHO WE ARE
As the nation's largest producer of clean, carbon-free energy, Constellation is focused on our purpose: accelerating the transition to a carbon-free future. 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.
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 and help fight climate change. Join us to lead the clean energy future.
TOTAL REWARDS
Constellation offers a wide range of benefits and rewards to help our employees thrive professionally and personally. We provide competitive compensation and benefits that support both employees and their families, helping them prepare for the future. In addition to highly competitive salaries, we offer a bonus program, 401(k) with company match, employee stock purchase program comprehensive medical, dental and vision benefits, including a robust wellness program paid time off for vacation, holidays, and sick days and much more.
Expected salary range of $144,900 to $161,000, varies based on experience, along with comprehensive benefits package that includes bonus and 401(k).
PRIMARY PURPOSE OF POSITION
Performs advanced engineering problem solving in support of nuclear plant operations. Responsible for technical decisions. Possesses superior knowledge in functional discipline and its practical application and has excellent knowledge of applicable industry codes and regulations. Functions with recognized industry-level of expertise in a technical area.
PRIMARY DUTIES AND ACCOUNTABILITIES
- Perform advanced engineering and technical tasks in support of nuclear plant operations.
- Perform independent research, reviews, studies and analyses in support of technical projects.
- Provides in-depth technical expertise to develop, manage and implement engineering activities related to plant safety, reliability, maintainability, and availability ensuring compliance to customer's needs, regulatory requirements, and corporate policies.
- Accountable for the accuracy, completeness, and timeliness of work ensuring proper configuration management and assuring that standard design criteria, practices and codes are used in preparation of plans and specifications.
- Provide technical expertise and consultation through direct involvement to identify and resolve equipment and system problems.
- Provides initial or complete task management of engineering issues.
- Recommends equipment, new concepts and techniques to improve performance, simplify construction, reduce costs, correct design or material flaws, or comply with changes in codes or regulations.
- Supports plant design modifications, testing and problem solving.
- Assure all engineering products prepared or overseen are in accordance with applicable safety analyses, industry codes, and all regulatory requirements.
- Develop, implement and coordinate functional supervisory activities including, but not limited to, personnel, budgetary accountabilities and planning goals with respect to engineering personnel.
- All other job assignments and/or duties pursuant to company policy or as directed by management to include but not limited to: (Emergency Response duties and/or coverage, Department duty coverage and/or call out, and positions outside of department in support of outage activities etc.)
MINIMUM QUALIFICATIONS
- Bachelor's degree in Engineering (Chemical, Civil/Structural, Electrical, Industrial, Mechanical or Nuclear) with 10 years of engineering experience
- Demonstrated technical leadership experience (e.g. Duty team lead, inspection lead), teamwork and leadership attributes
- Maintain minimum access requirement or unescorted access requirements, as applicable, and favorable medical examination and/or testing in accordance with position duties
PREFERRED QUALIFICATIONS
- Professional Engineer (PE) License
- Thermal hydraulics experience
- Previous Nuclear plant experience
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