Engineer, Mechanical Sr
$92.7k - $114kConstellation Energy
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.
***This Engineering role can be filled at the Entry, Mid-level or Senior Engineer level. Please see minimum qualifications list below for each level***
- 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
Performs advanced technical/engineering problem solving in support of nuclear plant operations while acting as a resource and technical expert to engineers. Responsible for technical decisions. Possesses excellent knowledge in functional discipline and its practical application and has detailed knowledge of applicable industry codes and regulations.
Primary Duties and Accountabilities
- Provide in-depth technical expertise to develop, manage and implement engineering analysis, activities and programs.
- Provide technical expertise and consultation through direct involvement and as a subject matter expert when consulted to identify and resolve equipment and system problems
- Directly fulfill engineering and technical leadership accountability regarding short-term and long-term programs that impact site operations
- Perform engineering tasks as assigned by supervision applying engineering principles.
- Accountable for the accuracy, completeness, and timeliness of work ensuring proper configuration management and assuring that standard design criteria, practices, procedures and codes are used in preparation of plans and specifications.
- Perform independent research, reviews, studies and analyses in support of technical projects and programs.
- 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.
- Perform other job assignments and duties as directed by management or pursuant to company policy, including but not limited to emergency response, departmental coverage, call outs, and support of outage activities in positions outside the department.
Minimum Qualifications
- Bachelor's degree in Engineering (Chemical, Civil/Structural, Electrical, Industrial, Mechanical or Nuclear) with 5 years of nuclear experience or related engineering experience
- Must meet additional requirements as outlined in ANSI/ANS-3.1-2014 Standard, "Selection, Qualification, and Training of Personnel for Nuclear Power Plants"
- 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 Registration
- Advanced technical degree or related coursework
$92.7k - $114k
...and sick days and much more. ***This Engineering role can be filled at the Mid-level or... ...Mid-Level - $92,700 - $114,000 Sr Level - $122,400- $154,000 Ranges are... ...civil/structural, electrical, industrial, mechanical or nuclear) with 2 years of nuclear or related...Suggested$183.6k - $204k
...Engineering, Sr Manager 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...SeniorRemote workShift work$183.6k - $204k
...Primary Purpose of Position Provide overall management of the engineering function of accountability. As responsibility increases... ...Engineering (Chemical, Civil/Structural, Electrical, Industrial, Mechanical or Nuclear) or related science OR Active/Inactive Senior...SeniorTemporary workLocal areaRemote workShift work$117.9k - $131k
...with comprehensive benefits package that includes bonus and 401(k). Primary Purpose of Position Performs advanced technical/engineering problem solving in support of Clean Energy Center (CEC) turbine generator operations. Responsible for technical decision making...Senior$159k - $182k
...~1.5 years or more in a position equivalent to Reactor Operator (or Supervisor) at a military reactor (i.e., Power Plant Watch Engineer, Engineering Watch Supervisor, Reactor Operator, Engineering Officer of the Watch, Propulsion Plant Watch Supervisor). Must have 1...SeniorHourly payTraineeshipRelocation packageShift work- ...~1.5 years or more in a position equivalent to Reactor Operator (or Supervisor) at a military reactor (i.e., Power Plant Watch Engineer, Engineering Watch Supervisor, Reactor Operator, Engineering Officer of the Watch, Propulsion Plant Watch Supervisor). Must have 1...SeniorTraineeshipShift work
- ...with the correlating NEC code: Reactor Operator (RO) Engineering Officer of the Watch (EOW) Propulsion Plant Watch Officer... ...Electrical N15S - Submarine Nuclear Propulsion Plant Supervisor - Mechanical N16S - Submarine Nuclear Propulsion Plant Supervisor -...SeniorShift work
- ...Sr. Client Service Specialist - (Mon - Thur) - Weekend Day Shift Job Category: Client Services Requisition Number: SRCLI007864 Posted: March 18, 2026 Full-Time On-site McCook, IL 60525, USA Job Details Description Essential Job Functions:...SeniorFull timeWork at officeWeekend workDay shift
$159k - $182k
...PWR. 1.5 years or more in a position equivalent to Reactor Operator (or Supervisor) at a military reactor (i.e., Power Plant Watch Engineer, Engineering Watch Supervisor, Reactor Operator, Engineering Officer of the Watch, Propulsion Plant Watch Supervisor). Must have 1...SeniorHourly payTraineeshipRelocation packageShift work- Promote products on behalf of the company at all levels of the channel (architect, dealer, builder, and contractor). Develop and maintain expertise on product features and benefits as well as installation techniques. Responsible for set up and breakdown of all trade shows...SeniorFor contractorsLocal areaWork from homeNight shiftWeekend work
$140k - $165k
...final accounts. Ensure compliance with commercial governance, internal controls, and cost assurance processes. Drive value engineering and cost optimization strategies across multiple stages of design. Support cost risk analysis, scenario planning, contingency...SeniorContract workFor contractorsFor subcontractor2 days per week3 days per week- ...DuPont. Why Join Us | DuPont Careers Continuous Improvement Sr. Engineering Lead DuPont has an exciting and challenging opportunity... ...and monitoring for all process equipment (including mechanical, electrical and instrument / control equipment). Apply engineering...SeniorLocal area
- Home Care Evolution - - Responsibilities: Provide companionship and friendly conversation; Play games, participate in activities, and encourage engagement; Assist with bathing and personal hygiene; Assist with transfers such as on and off the toilet; Help with laundry and...Senior
- ...POSITION: Industrial Engineer LOCATION : Wilmington, IL DUTIES AND RESPONSIBILITIES: The Industrial Engineer is responsible for the project management of six sigma process improvements and facility layout. This position will devise efficient ways to use staff...Permanent employmentFull timeWork at officeRelocation
$91.52k - $137.28k
...where your contributions help move the world forward-one shipment at a time. About the Position Site dedicated Industrial Engineers are in a co-managed environment with Operational leaders, setting the overall project priorities to deliver value to customer networks...Contract workTemporary workFor contractors$110k - $115k
...Senior Electrical Engineer Location: Champaign, IL Employment Type: Full-Time Work Model: On-site Salary Range: $110,000- $115,000 Vendor fee-3% Candidate must be local Job Summary We are seeking a Senior...SeniorFull timeFor contractorsLocal area$54.49k - $103.04k
Position Type: Administration/Principal Date Posted: 1/21/2026 Location: Immaculate Conception Catholic School, Morris Diocese of Joliet Catholic Schools 2026-2027 Principal Full-Time, Benefit Eligible Immaculate Conception School, Morris...Permanent employmentFull timeTemporary workWork at officeLocal areaFlexible hoursAfternoon shift$16 - $18 per hour
Home Helpers Home Care Caregiver At Home Helpers Home Care, we provide high-quality, dependable care that allows older adults to remain safe, independent, and engaged wherever they call home. We care for individuals throughout Kankakee, Iroquois, and Southern Will Counties...SeniorHourly payFull timePart timeFlexible hours- CHS Inc. is a leading global agribusiness owned by farmers, ranchers and cooperatives across the United States that provides grain, food and energy resources to businesses and consumers around the world. We serve agriculture customers and consumers across the United States...SeniorMinimum wageTemporary workLocal area
$88k - $130k
...Position Title: Senior Salesforce Engineer- Financial Services Cloud Locations: Rockford_IL Time Type: Full time Req ID: JR1200-Rockford_IL At Midland, were proud to be a little different. You can see it in our bright orange signs...SeniorFull timeContract workTemporary workWork at officeFlexible hours- Job Description Job Description OrganiZational context and job purpose Organizational Context INEOS Joliet is a leading producer of chemical intermediates. At our site in Channahon, Illinois (about 40 miles southwest of Chicago) we produce three products - Purified...Rotating shiftDay shift
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Engineer, Mechanical Sr. Be the first to apply!


