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Flexible Mumps Developer Jobs (NOW HIRING)

Solutions Architect

$64.50 - $85/hr

Demonstrated experience working with VistA or other MUMPS-based systems, including FileMan ... Flexible spending account and health saving account options offer pre-tax savings for qualified ...

Solutions Architect

$64.50 - $85/hr

Demonstrated experience working with VistA or other MUMPS-based systems, including FileMan ... Flexible spending account and health saving account options offer pre-tax savings for qualified ...

Child Care Teacher Assistant

North Easton, MA · On-site

$13.75 - $17/hr

FREE YMCA Membership, Programming and Child Care Discounts, Competitive Salaries, Flexible Hours ... Negative Mantoux TB test and immunity for measles, mumps, and rubella. * Ability to sit, stand ...

Child Care Teacher Assistant

North Easton, MA · On-site

$13.75 - $17/hr

FREE YMCA Membership, Programming and Child Care Discounts, Competitive Salaries, Flexible Hours ... Negative Mantoux TB test and immunity for measles, mumps, and rubella. Ability to create and ...

Child Care Teacher Assistant

North Easton, MA · On-site

$13.75 - $17/hr

FREE YMCA Membership, Programming and Child Care Discounts, Competitive Salaries, Flexible Hours ... Negative Mantoux TB test and immunity for measles, mumps, and rubella. Ability to create and ...

$97 - $182/hr

Bachelor's degree in Computer Science, Information Systems Management, Engineering, or equivalent ... Flexible spending account and health saving account options offer pre‑tax savings for qualified ...

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How much do flexible mumps developer jobs pay per year?

As of Aug 26, 2026, the average yearly pay for flexible mumps developer in the United States is $106,666.00, according to ZipRecruiter salary data. Most workers in this role earn between $85,000.00 and $123,000.00 per year, depending on experience, location, and employer.
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Infographic showing various Flexible Mumps Developer job openings in the United States as of August 2026, with employment types broken down into 1% As Needed, 69% Full Time, 27% Part Time, and 3% Contract. Highlights an 80% Physical, 1% Hybrid, and 19% Remote job distribution, with an average salary of $106,666 per year, or $51.3 per hour.

Reactor Multiphysics Methods Developer

Idaho Falls, ID • On-site


Idaho National Laboratory
Scientific Research and Development Services • 5 - 10K employees

8.8

Company rating: 8.8 out of 10

Based on 16 frontline employees who took The Breakroom Quiz

16th of 120 rated laboratories

Great coworkers

People enjoy working here

Good employer


$95K - $195K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted yesterday

New


Job description

Idaho National Laboratory needs a Reactor Multiphysics Methods Developer to develop, deploy, and support innovative technical solutions. We develop several reactor physics tools based on the Multiphysics Object-Oriented Simulation Environment (MOOSE) framework in collaboration with other partners. The candidate will support development of Griffin which is a deterministic reactor physics code based on MOOSE written in C++ and Fortran. This includes software work and development of novel methods for solving reactor physics problems. The candidate will also support multi physics modeling efforts for advanced reactors using Griffin couples to other multiphysics tools. In support of analysis and code validation and verification, the candidate will also use Monte Carlo tools. The candidate will work with teams of engineering using Griffin to support their modeling efforts and participate in teams of engineers in support of advanced reactor model development and analysis.


 

Essential Job Functions and Responsibilities:

  • Apply principles, theories, and concepts to develop, deploy, and support innovative technical solutions across various platforms (mobile, embedded, desktop, web-based, and hosted capabilities) to support programmatic goals.
  • Apply software engineering principles to complex analytical processes and information display and visualization.
  • Leverage modeling and simulation to address complex problems across multiple fields, including nuclear, chemistry, digital twins, critical infrastructure, energy delivery, and energy security applications.
  • Analyze, test, modify, document, and maintain models or simulation-based systems related to scientific domains, including nuclear applications.
  • Execute assigned computational analysis/modeling tasks and make preliminary selections and adaptations of technical alternatives.
  • Develop and review designs, requirement definitions, operations, documentation, and testing processes.
  • Optimize, program, and develop software using technologies such as MATLAB, Simulink, C/C++/C#, Python, Julia, etc.
  • Provide consultation services to internal teams in applicable technologies, requirement definitions, operations, and testing.
  • Continuously enhance skills with cutting-edge technology.
  • Deliver high-quality product features exceeding client expectations.
  • May mentor junior staff and lead groups.


 

Required:

  • Level 2: PhD of Science in Mathematics, Engineering, Computer Science, or related discipline from an accredited institution.
  • Level 3: PhD of Science in Mathematics, Engineering, Computer Science, or related discipline from an accredited institution and 2 years of relevant experience.
  • Experience with C++, Fortran, and multi-physics modeling.
  • Excellent verbal and written communication skills.
     

The ideal candidate will possess:

  • Experience with MOOSE framework, Griffin, and Monte Carlo tools.

Physical Requirements:

While performing the duties of this classification, the employee is frequently required to stand, walk, sit, stoop, kneel, bend, use hands to handle materials, manipulate tools, keyboard and type, reach with hands and arms, and operate job-related equipment. The employee must occasionally lift and/or move up to 25 pounds. Sufficient visual acuity and hearing capacity to perform the essential functions and interact with people is required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

Job Information:

Idaho National Laboratory is hiring a Reactor Multiphysics Methods Developer to work on our Reactor Physics & Shielding team. Our team works a 9x80 schedule located out of our REC facility with every other Friday off

  • The pay range for this position is: Level 2 ($79,344 - $162,732) / Level 3 ($95,256 - $195,288). At Idaho National Laboratory compensation decisions are determined using factors such as education, relevant experience, and other credentials.
  • Multi-Level: This is a multi-level posting and you will be placed at the appropriate level dependent on depth and breadth of proven experience and skills.

Benefits and Relocation

  • Medical, Dental, Vision, and Flexible Spending Accounts
  • 401(k) with a 4.2% employer contribution and up to 4.8% match (regular positions) or self-contribute access (postdoctoral positions)
  • Paid time off (personal leave)
  • Employee Education Program (tuition assistance for eligible positions)
  • Comprehensive Relocation Package
  • Benefit eligibility subject to multiple factors, including employment status and position classification.

At this time, BEA will not sponsor any H1-B visas obtained outside of the United States of America (U.S.A.), including consular visas.

INL is a science-based, applied engineering national laboratory dedicated to supporting the U.S. Department of Energy's mission in nuclear energy research, science, and national defense. With more than 6,300 scientists, researchers, and support staff, the laboratory works with national and international governments, universities and industry partners to change the world's energy future and secure our nation's critical infrastructure.

INL Mission:

Our mission is to discover, demonstrate and secure innovative nuclear energy solutions, other clean energy options and critical infrastructure.

INL Vision:

Our vision is to change the world's energy future and secure our nation's critical infrastructure.

Selective Service Requirements:

To be eligible for employment at INL males born after December 31, 1959 must have registered with the Selective Service System (SSS). For more information see www.sss.gov.

Equal Employment Opportunity:

Idaho National Laboratory (INL) is an Equal Employment Opportunity (EEO) employer. It is the policy of INL to provide equal employment opportunities to all qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, protected veteran or disabled status, or genetic information.

Reasonable Accommodation:

We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation.

Other Information:

When applying to positions please provide a resume and answer all questions on the following screens. Applicants, who fail to provide a resume or answer the questions, may be deemed ineligible for consideration.

INL does not accept resumes from third party vendors unsolicited.

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About Idaho National Laboratory

Sourced by ZipRecruiter

Idaho National Laboratory is a leading multi-disciplinary national laboratory dedicated to supporting the U.S. Department of Energy's missions in nuclear and energy research, science, and national defence. Located in Idaho Falls, ID, US, it operates under the management of Battelle Energy Alliance. Since its inception in 1949, the lab has remained at the forefront of nuclear energy innovations and advancements, providing critical scientific and technological inputs to support national priorities. Guided by its commitment to excellence, innovative research, collaborative partnerships, and integrity, the lab continues to play a vital role in driving America's nuclear and energy future.

Industry

Scientific research and development services

Company size

5,001 - 10,000 Employees

Headquarters location

Idaho Falls, ID, US

Year founded

1949

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