H-1B Visa Reactor Engineer Jobs
Reactor Engineer roles qualify as H-1B specialty occupations under USCIS guidelines, requiring at least a bachelor's degree in nuclear engineering or a directly related field. Most positions sit in the nuclear power generation and national laboratory sectors, where employers have established H-1B filing histories and structured sponsorship processes.
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MRR Reactor Operations
Job Description
The MURR Reactor Engineer II – Reactor Support reports directly to the Senior Manager – Support. This position supports reactor operations by executing delegated system engineering initiatives under the strategic direction of the Senior Manager – Support. This position focuses on long-term system reliability, configuration control, fabrication capability, and operational improvement to reduce risk, improve maintainability, and strengthen the University of Missouri Research Reactor’s operational readiness.
This role is intentionally structured to address forward-looking challenges that cannot be effectively managed through day-to-day operations alone.
Job Duties
- Serve as the assigned system steward for designated reactor systems and components as directed by the Senior Manager – Support.
- Evaluate system health and performance, including aging mechanisms, obsolescence risks, and single-point vulnerabilities, and develop mitigation strategies.
- Support development of long-range maintenance and replacement strategies in coordination with Operations and Maintenance leadership.
- Lead in-house engineering initiatives for control blade fabrication and refurbishment, reactor-specific tooling and fixtures, and replacement or redesign of obsolete components.
- Develop, review, and maintain SolidWorks models, drawings, and fabrication packages.
- Maintain configuration control authority by ensuring systems and components are accurately documented and reflect as-built conditions.
- Assist with preparation and review of Modification Records, engineering change documentation, and supporting analyses impacting reactor operations.
- Act as a technical resource for operational system changes.
- Identify recurring equipment and system issues, perform root cause analysis, and implement engineering-based corrective solutions.
- Perform trend analysis and support root-cause evaluations for system failures.
- Lead projects that reduce maintenance burden, improve system reliability, and enhance operational efficiency.
- Provide engineering guidance across departments, ensuring alignment with operational priorities and regulatory expectations.
Successful candidates will be persuasive communicators, have exceptional organizational and time management skills, and must demonstrate the following durable skills: leadership, character, collaboration, communication, creativity, critical thinking, metacognition, mindfulness, growth mindset, fortitude, customer service, confidentiality, integrity, and commitment to the University values.
Shift
Monday through Friday 8AM to 5PM. Some work before and after standard schedule as needed for continued operations.
Minimum Qualifications
Bachelor’s degree in related/relevant area and at least 2 years of experience from which comparable knowledge and skills can be acquired is necessary.
Preferred Qualifications
- Experience with nuclear reactor systems or other safety-critical, high-reliability facilities, including responsibility for system lifecycle or stewardship activities.
- Demonstrated system engineering experience focused on reliability, preventative maintenance, obsolescence mitigation, and configuration control.
- Hands-on experience with mechanical design, fabrication, tooling, or component refurbishment, with proficiency in SolidWorks or comparable CAD software.
- Proven ability to perform root cause and trend analysis to resolve recurring equipment or system issues through sustainable engineering solutions.
- Experience leading cross-functional engineering projects in regulated environments to improve maintainability, reliability, or operational efficiency.
Anticipated Hiring Range
Salary Range: $100,000-$110,000/yr
Grade: GGS-M12
University Title: MURR Reactor Engineer II
Internal applicants can determine their University title by accessing the Talent Profile tile in myHR.
Community Information
Columbia offers small-town friendliness with big city features and a high quality of life for people of all ages and interests. Founded on education and known as an ideal college town, its location also makes it an attractive spot for businesses and travelers. Located on Interstate 70 and U.S. Highway 63, Columbia is right in the middle of the state and the nation. Just a couple hours’ drive from St. Louis and Kansas City, Columbia is Boone County’s largest population center offering big-city culture, activities, and resources with a low cost of living. Columbia is home to a variety of restaurants and entertainment venues and hosts more than a dozen festivals each year. If you want to grow your career, continue your education, raise a family, and retire, Columbia is a good place to be!
Benefit Eligibility
This position is eligible for University benefits. As part of your total compensation, the University offers a comprehensive benefits package, including medical, dental and vision plans, retirement, paid time off, short- and long-term disability, paid parental leave, paid caregiver leave, and educational fee discounts for all four UM System campuses. For additional information on University benefits, please visit the Faculty & Staff Benefits website at https://www.umsystem.edu/totalrewards/benefits.
Equal Employment Opportunity
The University of Missouri is an Equal Opportunity Employer.
To request ADA accommodations, please call the Director of Accessibility and ADA at 573-884-7278.
Hiring Department
MRR Reactor Operations
Job Description
The MURR Reactor Engineer II – Reactor Support reports directly to the Senior Manager – Support. This position supports reactor operations by executing delegated system engineering initiatives under the strategic direction of the Senior Manager – Support. This position focuses on long-term system reliability, configuration control, fabrication capability, and operational improvement to reduce risk, improve maintainability, and strengthen the University of Missouri Research Reactor’s operational readiness.
This role is intentionally structured to address forward-looking challenges that cannot be effectively managed through day-to-day operations alone.
Job Duties
- Serve as the assigned system steward for designated reactor systems and components as directed by the Senior Manager – Support.
- Evaluate system health and performance, including aging mechanisms, obsolescence risks, and single-point vulnerabilities, and develop mitigation strategies.
- Support development of long-range maintenance and replacement strategies in coordination with Operations and Maintenance leadership.
- Lead in-house engineering initiatives for control blade fabrication and refurbishment, reactor-specific tooling and fixtures, and replacement or redesign of obsolete components.
- Develop, review, and maintain SolidWorks models, drawings, and fabrication packages.
- Maintain configuration control authority by ensuring systems and components are accurately documented and reflect as-built conditions.
- Assist with preparation and review of Modification Records, engineering change documentation, and supporting analyses impacting reactor operations.
- Act as a technical resource for operational system changes.
- Identify recurring equipment and system issues, perform root cause analysis, and implement engineering-based corrective solutions.
- Perform trend analysis and support root-cause evaluations for system failures.
- Lead projects that reduce maintenance burden, improve system reliability, and enhance operational efficiency.
- Provide engineering guidance across departments, ensuring alignment with operational priorities and regulatory expectations.
Successful candidates will be persuasive communicators, have exceptional organizational and time management skills, and must demonstrate the following durable skills: leadership, character, collaboration, communication, creativity, critical thinking, metacognition, mindfulness, growth mindset, fortitude, customer service, confidentiality, integrity, and commitment to the University values.
Shift
Monday through Friday 8AM to 5PM. Some work before and after standard schedule as needed for continued operations.
Minimum Qualifications
Bachelor’s degree in related/relevant area and at least 2 years of experience from which comparable knowledge and skills can be acquired is necessary.
Preferred Qualifications
- Experience with nuclear reactor systems or other safety-critical, high-reliability facilities, including responsibility for system lifecycle or stewardship activities.
- Demonstrated system engineering experience focused on reliability, preventative maintenance, obsolescence mitigation, and configuration control.
- Hands-on experience with mechanical design, fabrication, tooling, or component refurbishment, with proficiency in SolidWorks or comparable CAD software.
- Proven ability to perform root cause and trend analysis to resolve recurring equipment or system issues through sustainable engineering solutions.
- Experience leading cross-functional engineering projects in regulated environments to improve maintainability, reliability, or operational efficiency.
Anticipated Hiring Range
Salary Range: $100,000-$110,000/yr
Grade: GGS-M12
University Title: MURR Reactor Engineer II
Internal applicants can determine their University title by accessing the Talent Profile tile in myHR.
Community Information
Columbia offers small-town friendliness with big city features and a high quality of life for people of all ages and interests. Founded on education and known as an ideal college town, its location also makes it an attractive spot for businesses and travelers. Located on Interstate 70 and U.S. Highway 63, Columbia is right in the middle of the state and the nation. Just a couple hours’ drive from St. Louis and Kansas City, Columbia is Boone County’s largest population center offering big-city culture, activities, and resources with a low cost of living. Columbia is home to a variety of restaurants and entertainment venues and hosts more than a dozen festivals each year. If you want to grow your career, continue your education, raise a family, and retire, Columbia is a good place to be!
Benefit Eligibility
This position is eligible for University benefits. As part of your total compensation, the University offers a comprehensive benefits package, including medical, dental and vision plans, retirement, paid time off, short- and long-term disability, paid parental leave, paid caregiver leave, and educational fee discounts for all four UM System campuses. For additional information on University benefits, please visit the Faculty & Staff Benefits website at https://www.umsystem.edu/totalrewards/benefits.
Equal Employment Opportunity
The University of Missouri is an Equal Opportunity Employer.
To request ADA accommodations, please call the Director of Accessibility and ADA at 573-884-7278.
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Get Access To All JobsTips for Finding H-1B Visa Sponsorship as a Reactor Engineer
Align your credentials with USCIS specialty occupation standards
Your degree must be in nuclear engineering, mechanical engineering, or a directly related discipline. If your transcript lists a different major, gather coursework documentation showing substantial nuclear or reactor-systems coursework before an employer files your H-1B petition.
Use OFLC Wage Search to benchmark your offer
Reactor Engineer roles typically fall under DOL wage levels II through IV depending on seniority. Pull the prevailing wage for your specific SOC code and work location before negotiating, so you know the minimum wage your employer must certify on the LCA.
Target employers with active LCA filing histories on Migrate Mate
Search Reactor Engineer roles on Migrate Mate to filter for employers with verified H-1B LCA filing histories. This cuts out speculative outreach and focuses your applications on companies that have sponsored this role before.
Confirm security clearance compatibility early in the process
Many reactor engineering positions at national laboratories or defense contractors require a security clearance. H-1B holders can hold certain clearances, but confirm eligibility with the hiring manager before accepting an offer, since classified roles may restrict sponsorship entirely.
File during cap-subject registration even with a current employer
If you're on OPT or another status with a reactor engineering employer, your new employer must still submit an H-1B registration during USCIS's annual March lottery window. Missing the registration window means waiting another full year, regardless of your employment situation.
Request premium processing when reactor project timelines are fixed
Nuclear project start dates are often contractually fixed. If your petition approval needs to land before a specific plant outage or commissioning milestone, ask your employer to file Form I-907 for USCIS premium processing, which targets a 15-business-day adjudication window.
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Find Reactor Engineer JobsReactor Engineer H-1B Visa: Frequently Asked Questions
Does a Reactor Engineer role qualify as a specialty occupation for H-1B purposes?
Yes. Reactor Engineer positions require at least a bachelor's degree in nuclear engineering, mechanical engineering, or a closely related field, which meets USCIS's specialty occupation standard. Employers document this requirement through job descriptions, internal HR records, and industry licensing norms. Roles involving reactor design, safety analysis, or fuel management consistently satisfy the specialty occupation criteria.
Which types of employers sponsor H-1B visas for Reactor Engineer positions?
Utilities operating commercial nuclear plants, national laboratories such as Argonne and Oak Ridge, nuclear engineering consulting firms, and reactor technology vendors are the primary sponsors. Government-owned contractor-operated facilities sponsor through the commercial H-1B cap. Browse verified sponsoring employers for this role on Migrate Mate to identify companies with active LCA filing histories before applying.
How does a security clearance requirement affect H-1B sponsorship for Reactor Engineers?
H-1B status does not automatically disqualify you from a security clearance, but eligibility depends on the clearance level and the specific program. Confidential and Secret clearances have been granted to H-1B holders in some cases, while Top Secret and SCI access are rarely available to non-citizens. Clarify clearance requirements with the employer before your petition is filed.
What O*NET occupation code applies to Reactor Engineers for LCA filing?
Reactor Engineers most commonly map to the O*NET occupation profile for Nuclear Engineers, which covers reactor design, safety systems, and fuel cycle analysis. Your employer's HR or immigration counsel will select the appropriate SOC code when submitting the Labor Condition Application to DOL, and the prevailing wage is then determined by location and experience level using that code.
Can a Reactor Engineer switch employers mid-H-1B without losing status?
Yes, under H-1B portability rules established by AC21, you can start working for a new employer as soon as the new I-129 petition is filed, provided your current H-1B has been approved for at least 180 days and the new role is in the same or a closely related specialty occupation. Reactor engineering roles within the nuclear engineering field generally satisfy the same-classification requirement.
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