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Procurement Specialist Technical

Constellation Energy

Marseilles, IL · Posted November 5, 2026

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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.

Expected salary range of $94,500 to $105,000, varies based on experience, along with comprehensive benefits package that includes bonus and 401(k).

Primary Purpose of Position

Implementation of the Supply Chain Process, inventory management, and investment recovery processes and programs.

Primary Duties and Accountabilities

Support Customer and Supplier needs are understood and addressed including Engineered Specifications, Terms and Conditions enforcement, and sourcing strategies to facilitate the contracted deliverables.

Support management of emergent supplier relationships, assist in the development of supplier performance metrics on an ongoing basis using a supplier performance monitoring system. Update current monitoring system information as necessary, visit key suppliers as needed and participate in long-range supplier alliance meetings.

Support the completion of technical evaluations, material classification, alternate replacement evaluation, and reverse engineering, and analysis of equipment and establishment of commercial grade dedication.

Support business unit emergency response activities as assigned.

Support and perform day to day process resolution including: un-enterable invoices, supplier changes and adds, unit of measure changes, economies of scale identification and changes. Investigate and correct issues associated with mismatch invoices; contracts, purchase orders, deliveries, shipping, expediting orders, quality, and receiving.

Minimum Qualifications

Bachelor's Degree in Business or a Technical Program and 2 years of experience, or 6 years of equivalent experience in lieu of the degree

Effective analytical skills combined with strong written and verbal skills

Proficient PC and computer skills (Word, Excel, Access, Power Point, Passport, Hyperion).

Working knowledge of purchasing functions, procurement technologies, and inclusive procurement and sourcing tools

Experience with inventory management software systems such as Passport, Asset Suite 9, Coupa, or similar platforms

Preferred Qualifications

Prior Nuclear experience preferred

Analytical skills, attention to detail, critical thinking, problem solving and independent decision making

Proficient PC and computer skills (Word, Excel, Access, Visio, Power Point, Asset Suite 9, PeopleSoft Hyperion), work processing, spreadsheet applications, eSourcing tool, flow charting and/or SQL database query development

Primary Purpose of Position

Implementation of the Supply Chain Process, inventory management, and investment recovery processes and programs.

Primary Duties and Accountabilities

Support Customer and Supplier needs are understood and addressed including Engineered Specifications, Terms and Conditions enforcement, and sourcing strategies to facilitate the contracted deliverables.

Support management of emergent supplier relationships, assist in the development of supplier performance metrics on an ongoing basis using a supplier performance monitoring system. Update current monitoring system information as necessary, visit key suppliers as needed and participate in long-range supplier alliance meetings.

Support the completion of technical evaluations, material classification, alternate replacement evaluation, and reverse engineering, and analysis of equipment and establishment of commercial grade dedication.

Support business unit emergency response activities as assigned.

Support and perform day to day process resolution including: un-enterable invoices, supplier changes and adds, unit of measure changes, economies of scale identification and changes. Investigate and correct issues associated with mismatch invoices; contracts, purchase orders, deliveries, shipping, expediting orders, quality, and receiving.

Minimum Qualifications

Bachelor's Degree in Business or a Technical Program and 2 years of experience, or 6 years of equivalent experience in lieu of the degree

Effective analytical skills combined with strong written and verbal skills

Proficient PC and computer skills (Word, Excel, Access, Power Point, Passport, Hyperion).

Working knowledge of purchasing functions, procurement technologies, and inclusive procurement and sourcing tools

Experience with inventory management software systems such as Passport, Asset Suite 9, Coupa, or similar platforms

Preferred Qualifications

Prior Nuclear experience preferred

Analytical skills, attention to detail, critical thinking, problem solving and independent decision making

Proficient PC and computer skills (Word, Excel, Access, Visio, Power Point, Asset Suite 9, PeopleSoft Hyperion), work processing, spreadsheet applications, eSourcing tool, flow charting and/or SQL database query development