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Weekend Nuclear Engineer Jobs (NOW HIRING)

Radiant

Nuclear Engineer, Sensors

El Segundo, CA · On-site

$106K - $146K/yr

About the Role Radiant is seeking a highly motivated Nuclear Engineer to own sensor and ... Must be willing to work extended hours and weekends as necessary to accomplish our mission. * Must ...

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Last Energy

Nuclear Engineer - Radiological

Austin, TX

$97K - $117K/yr

This person will work closely with the nuclear engineering and safety analysis staff to ensure that the PWR-20 design meets radiation safety and accident dose requirements. Key Duties ...

Last Energy

Nuclear Engineer - Radiological

Austin, TX · On-site

$97K - $117K/yr

This person will work closely with the nuclear engineering and safety analysis staff to ensure that the PWR-20 design meets radiation safety and accident dose requirements. Key Duties ...

X Energy LLC

Nuclear Engineer, IV

Rockville, MD · On-site +1

$100K - $120K/yr

Execute nuclear engineering assignments with clear and specified objectives; utilize conventional specifications and/or Interface Control Documents and plans. * Recommend system design alterations ...

Leidos

Senior Nuclear Engineer

Reston, VA · On-site

$102K - $122K/yr

In this role, you will apply advanced nuclear engineering principles in support of counterproliferation efforts and nuclear survivability (hardness) system design. Responsibilities include conducting ...

Leidos

Senior Nuclear Engineer

Reston, VA

$102K - $122K/yr

In this role, you will apply advanced nuclear engineering principles in support of counterproliferation efforts and nuclear survivability (hardness) system design. Responsibilities include conducting ...

X Energy LLC

Nuclear Engineer, IV

Rockville, MD · Hybrid

$100K - $120K/yr

Execute nuclear engineering assignments with clear and specified objectives; utilize conventional specifications and/or Interface Control Documents and plans. * Recommend system design alterations ...

Last Energy

Nuclear Engineer - Radiological

Austin, TX

$97K - $117K/yr

This person will work closely with the nuclear engineering and safety analysis staff to ensure that the PWR-20 design meets radiation safety and accident dose requirements. Key Duties ...

Realta Fusion Inc.

Nuclear Engineer

Madison, WI

$99K - $118K/yr

This Nuclear Engineer will work with Realta's engineering and scientific teams to provide critical engineering and design input on Realta's technology development roadmap. The Nuclear Engineer will ...

Realta Fusion Inc.

Nuclear Engineer

Madison, WI

$99K - $118K/yr

This Nuclear Engineer will work with Realta's engineering and scientific teams to provide critical engineering and design input on Realta's technology development roadmap. The Nuclear Engineer will ...

Realta Fusion, Inc.

Nuclear Engineer

Madison, WI · On-site

$99K - $118K/yr

This Nuclear Engineer will work with Realta's engineering and scientific teams to provide critical engineering and design input on Realta's technology development roadmap. The Nuclear Engineer will ...

Radiant

Nuclear Engineer, Core Physics

El Segundo, CA · On-site

$106K - $146K/yr

Radiant's unique, practical approach to nuclear development leverages modern software engineering ... Must be willing to work extended hours and weekends as necessary to accomplish our mission. * Must ...

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Weekend Nuclear Engineer information

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How much do weekend nuclear engineer jobs pay per year?

As of Aug 8, 2026, the average yearly pay for weekend nuclear engineer in the United States is $105,594.00, according to ZipRecruiter salary data. Most workers in this role earn between $98,500.00 and $118,000.00 per year, depending on experience, location, and employer.

Is there a demand for weekend nuclear engineers?

Weekend nuclear engineers are in demand in facilities that operate 24/7, such as power plants and research reactors, where maintenance, safety checks, and operational support are needed outside regular hours. Employers often seek candidates with strong technical skills, certifications, and the ability to work flexible schedules to ensure continuous safe operation.

What are the typical responsibilities and challenges faced by a weekend nuclear engineer?

As a Weekend Nuclear Engineer, your primary responsibilities often include monitoring reactor operations, performing routine inspections, and troubleshooting technical issues that arise during weekend shifts. One common challenge is managing unexpected equipment malfunctions with limited on-site support, as weekend staffing is usually leaner than on weekdays. Collaboration with remote teams and clear documentation are essential, as you’ll need to ensure a seamless handoff to weekday staff. This role provides valuable hands-on experience with critical systems, which can open doors to advancement in operations, maintenance, or safety engineering roles.

What are the key skills and qualifications needed to thrive as a weekend nuclear engineer, and why are they important?

To thrive as a Weekend Nuclear Engineer, you need a solid understanding of nuclear engineering principles, safety protocols, and a relevant engineering degree or equivalent qualification. Familiarity with reactor control systems, radiation monitoring equipment, and industry-standard software like MCNP or RELAP5 is often required, along with certifications such as a Professional Engineer (PE) license or NRC operator certification. Strong problem-solving skills, attention to detail, and the ability to communicate clearly under pressure are crucial soft skills for this role. These competencies ensure safe and efficient plant operation, regulatory compliance, and rapid response to any weekend-specific challenges or emergencies.

Do weekend nuclear engineers get weekends off?

Weekend nuclear engineers typically work rotating shifts that may include weekends, as nuclear power plants operate 24/7. They often work scheduled shifts to ensure continuous safety and operation, which can include working weekends and holidays. Off days are usually scheduled in rotation to provide rest periods, but weekends are not guaranteed off unless specified in the shift schedule.

What is the difference between Weekend Nuclear Engineer vs Part-Time Nuclear Technician?

AspectWeekend Nuclear EngineerPart-Time Nuclear Technician
CredentialsEngineering degree, state licensure, certifications like NRCTechnical certifications, associate degree or technical training
Work EnvironmentPower plants, research facilities, industrial sitesPower plants, maintenance facilities, testing labs
Employer & IndustryUtilities, government agencies, private energy firmsUtilities, nuclear service companies, research institutions

Weekend Nuclear Engineers typically hold engineering degrees and licenses, working in operational or safety roles during weekends. Part-Time Nuclear Technicians usually have technical certifications and assist with maintenance, testing, or monitoring tasks. Both roles are part-time but differ in qualifications and responsibilities, with engineers focusing on planning and analysis, while technicians handle hands-on technical work.

What is a weekend nuclear engineer?

Weekend Nuclear Engineers are professionals who work in nuclear facilities specifically during weekends. Their responsibilities often include monitoring reactor operations, performing maintenance checks, troubleshooting technical issues, and ensuring the safety and compliance of nuclear systems. These positions are vital for continuous plant operations, as nuclear facilities typically run 24/7 and require skilled personnel at all times. Weekend shifts may appeal to engineers seeking flexible schedules or additional income. Candidates usually need a degree in nuclear engineering or a related field and must adhere to strict safety and regulatory protocols.
What cities are hiring for Weekend Nuclear Engineer jobs? Cities with the most Weekend Nuclear Engineer job openings:
What are the most commonly searched types of Nuclear Engineer jobs? The most popular types of Nuclear Engineer jobs are:
What states have the most Weekend Nuclear Engineer jobs? States with the most job openings for Weekend Nuclear Engineer jobs include:
Weekend Nuclear Engineer jobs near you

Nuclear Engineer, Sensors

Radiant

El Segundo, CA • On-site

$106K - $146K/yr

Full-time

Medical, Dental, Vision, Life, PTO

This job post has expired today. Applications are no longer accepted.

Job description

About Radiant
Radiant is an El Segundo, CA-based startup building the world's first mass-produced, portable nuclear microreactors. The company's first reactor, Kaleidos, is a 1-megawatt, fail-safe microreactor that can be transported anywhere power is needed and run for up to 5 years without refueling. Portable nuclear power with rapid-deploy capability can replace similar-sized diesel generators and provide critical asset support for hospitals, data centers, remote sites, and military bases. Radiant's unique, practical approach to nuclear development leverages modern software engineering to rapidly deliver safe, factory-built microreactors that use existing, well-qualified materials. Founded in 2020, Radiant is on track to test its first reactor at the Idaho National Laboratory this summer, with initial customer deliveries beginning in 2028.
About the Role
Radiant is seeking a highly motivated Nuclear Engineer to own sensor and instrumentation solutions for our Kaleidos microreactor. This includes radiation detection, neutron flux monitoring, and instrumentation design and qualification for reactor physics, shielding, and safety analysis applications. You will lead and own instrumentation initiatives and studies, strategic direction, and work closely with a collaborative nuclear and engineering team in a fast-paced startup environment. The ideal candidate is passionate about advanced reactor design, detail-oriented, effectively communicates, and has a tenacity to solve interesting technical challenges.
Responsibilities & Duties
Ownership of sensor and instrumentation design and analysis, examples include:
  • Radiation Detection: Design, specify, and qualify in-core and ex-core detector systems (fission chambers, ion chambers, and other detector technologies) for neutron flux and radiation monitoring.
  • Detector Modeling: Support detector response modeling and verification using radiation transport codes to ensure sensor design meets performance requirements.
  • Environmental Qualification: Evaluate and validate sensor survivability and performance under high-temperature, high-radiation, and accident-condition environments.
  • Systems Integration: Partner with reactor control and data acquisition (DAQ) engineers to integrate sensor outputs into reactor monitoring, protection, and control systems.
  • Verification & Validation: Support V&V of instrumentation against customer and regulatory requirements.
  • Collect requirements, provide expertise and feedback to engineers in other functional areas via clear, constructive communication.
  • Other nuclear instrumentation and sensor design/analysis duties as assigned.

Required Qualifications & Skills
  • Bachelor's degree in nuclear engineering or equivalent degree from an accredited institution.
  • 1-2+ years of nuclear engineering industry experience (MS equivalent to 2 yrs), with exposure to radiation detection or instrumentation.
  • Experience with radiation transport methods, including with codes such as MCNP/OpenMC/Serpent.
  • Proficient in at least one of the following programming languages: Python, C++, C#, FORTRAN, or another scientific computing language.
  • Basic knowledge of thermal hydraulic principles.
  • Self-motivated with strong organizational, written, and oral communication skills.
  • Experience working in an engineering organization and developing high-quality work.

Desired Qualifications & Skills
  • Hands-on experience designing, testing, or qualifying sensors/instrumentation in harsh environments (high temperature, high radiation).
  • Experience with data acquisition (DAQ) systems and integration with reactor control systems.
  • Experience with variance reduction techniques and associated software (Attila4MC and/or ADVANTG), is a plus.
  • Competency in distributed software development processes and high-performance computing environments.
  • Familiarity with CAD design software (NX, SolidWorks, and/or SpaceClaim), is a plus.
  • Familiarity with dose consequence methods and software such as MAACS or NRC-RADTRAN.
  • At least 1 year of software development or scripting experience.
  • Hands-on experience designing hardware and/or performing tests.

Additional Requirements
  • Must be willing to work extended hours and weekends as necessary to accomplish our mission.
  • Must work 100% onsite at El Segundo HQ.
Benefits and Perks
  • Stock: Substantial incentive stock plan for all full-time employees.
  • Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans.
  • One Medical: Sponsored memberships for employees and their dependents.
  • Vision: 100% top tier plan coverage + 50% for dependents.
  • Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents.
  • Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits.
  • 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for CA employees.
  • Daily catered lunch. Free snacks and drinks.
  • Flexible PTO policy. Remote workday allocation.
  • Company and team-bonding events, happy hours and in-person camaraderie.
  • Beautiful El Segundo headquarters close to the Pacific Ocean.

Total Compensation and Benefits
Radiant compensates people for impact and invests in those who continue to raise the bar. Radiant's new hire compensation package includes base salary, substantial equity grants, and comprehensive health benefits. Total compensation and level are determined through a rigorous evaluation of interview performance, experience, education, and qualifications, and are designed to support continued growth as scope, responsibility, and impact expand at Radiant.
The best of today's advanced reactor builders don't wait for job postings. They join the winning team. If that's you, contact us directly for immediate opportunities: recruiting@radiantnuclear.com.
We are an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, disability status, genetic information, protected veteran status, or any other characteristic protected by law.
This position involves access to technology that is subject to U.S. export controls. Any job offer made will be contingent upon the applicant's capacity to serve in compliance with U.S. export controls.

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