Entry Level Reactor Engineer Jobs
New grad reactor engineer jobs welcome recent graduates and entry level candidates with zero to two years of experience, where strong internship work or a senior capstone project can matter more than a long resume. Most openings are on-site roles across Energy, with employers like Radiant Nuclear, Entergy, and Constellation Energy hiring at this level now.
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See related jobsWho 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***
- Entry-Level - $87,000
- Mid-Level - $94,500 - $122,000
- Sr Level - $123,000 - $155,000
Ranges are per year based on experience, along with a comprehensive benefits package that includes bonus and 401K.
Primary Purpose of Position
Performs advanced reactor engineering problem solving in support of nuclear plant operations. 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 to identify and resolve reactor core analysis movement and control.
- 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.
- Recommend 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.
- Must obtain Qualified Nuclear Engineering (QNE) within 24 months of assuming the position.
- 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 for Entry Level E01 Engineer – New Graduate
- Bachelor’s degree in Engineering (Chemical, Civil/Structural, Electrical, Industrial, Mechanical or Nuclear)
- Maintain minimum access requirements or unescorted access requirements, as applicable, and favorable medical examination and/or testing in accordance with position duties
MINIMUM QUALIFICATIONS for Mid-level E02 Engineer
- Bachelor’s degree in Engineering (chemical, civil/structural, electrical, industrial, mechanical or nuclear) with 2 years of nuclear or related engineering experience
- Maintain minimum access requirements or unescorted access requirements, as applicable, and favorable medical examination and/or testing in accordance with position duties
MINIMUM QUALIFICATIONS for Senior E03 Engineer
- 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
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***
- Entry-Level - $87,000
- Mid-Level - $94,500 - $122,000
- Sr Level - $123,000 - $155,000
Ranges are per year based on experience, along with a comprehensive benefits package that includes bonus and 401K.
Primary Purpose of Position
Performs advanced reactor engineering problem solving in support of nuclear plant operations. 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 to identify and resolve reactor core analysis movement and control.
- 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.
- Recommend 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.
- Must obtain Qualified Nuclear Engineering (QNE) within 24 months of assuming the position.
- 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 for Entry Level E01 Engineer – New Graduate
- Bachelor’s degree in Engineering (Chemical, Civil/Structural, Electrical, Industrial, Mechanical or Nuclear)
- Maintain minimum access requirements or unescorted access requirements, as applicable, and favorable medical examination and/or testing in accordance with position duties
MINIMUM QUALIFICATIONS for Mid-level E02 Engineer
- Bachelor’s degree in Engineering (chemical, civil/structural, electrical, industrial, mechanical or nuclear) with 2 years of nuclear or related engineering experience
- Maintain minimum access requirements or unescorted access requirements, as applicable, and favorable medical examination and/or testing in accordance with position duties
MINIMUM QUALIFICATIONS for Senior E03 Engineer
- 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
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Entry Level Reactor Engineer Jobs: Frequently Asked Questions
How do I get an entry level reactor engineer job?
Entry level reactor engineer employers look for a nuclear engineering degree or a closely related field, familiarity with reactor physics and thermodynamics, and hands-on experience from internships, co-ops, or senior design projects. Security clearance eligibility is a common plus at national labs and defense contractors. Tailoring your resume to highlight reactor-specific coursework and any lab or simulation work gives candidates a real edge at this stage.
Which companies hire entry level reactor engineers?
Companies hiring entry level reactor engineers right now include Radiant Nuclear, Entergy, and Constellation Energy, based on current listings on Migrate Mate as of August 2026. At this level, hiring comes from national laboratories, nuclear utilities, defense contractors, and engineering consultancies that run structured new-hire programs for junior engineers.
Are there remote entry level reactor engineer jobs?
Yes, though most roles in this field are on-site given the hands-on nature of reactor work. About 33% of entry level reactor engineer openings are remote or hybrid as of August 2026, typically covering analysis, modeling, or documentation roles rather than plant-floor or laboratory positions.
Are these new grad reactor engineer jobs?
Yes, these listings include new grad, recent graduate, and junior reactor engineer roles. A new-grad-friendly posting typically welcomes zero to two years of experience and accepts internships, co-op rotations, or a strong academic portfolio in place of full professional experience. Look for language like "new graduates welcome" or "0-2 years" in the job description as a reliable signal.
Which industries hire the most entry level reactor engineers?
Entry Level reactor engineer roles concentrate in Energy, based on current listings on Migrate Mate as of August 2026. These sectors drive hiring at this level because they operate or support nuclear facilities, research reactors, or regulatory programs that rely on a consistent pipeline of junior engineers to meet workforce demand.