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Junior Java Software Engineer Jobs in Idaho Falls, ID

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Junior Java Software Engineer information

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How much do junior java software engineer jobs pay per year?

As of Sep 4, 2026, the average yearly pay for junior java software engineer in Idaho Falls, ID is $102,606.00, according to ZipRecruiter salary data. Most workers in this role earn between $72,500.00 and $102,300.00 per year, depending on experience, location, and employer.

What does a junior Java software engineer do?

A Junior Java Software Engineer is typically responsible for assisting in the development, testing, and maintenance of software applications using the Java programming language. They work under the guidance of more experienced engineers to write code, fix bugs, and contribute to team projects. Junior engineers also learn best practices in software development, participate in code reviews, and continuously improve their technical skills. Their role often includes collaborating with other developers, designers, and quality assurance teams to deliver high-quality software solutions.

What kinds of projects or tasks can a junior Java software engineer expect to work on during their first year?

As a Junior Java Software Engineer, you can expect to work on tasks such as fixing bugs, writing unit tests, and developing small features under the guidance of more experienced team members. You'll likely contribute to code reviews, participate in daily stand-ups, and collaborate closely with QA engineers and front-end developers. Over time, you may gradually take on more complex assignments, such as designing modules or integrating third-party APIs. This hands-on experience helps build your technical skills and deepen your understanding of the software development lifecycle.

What are the key skills and qualifications needed to thrive as a junior Java software engineer, and why are they important?

To thrive as a Junior Java Software Engineer, you need a solid understanding of Java programming, object-oriented principles, data structures, and typically a bachelor’s degree in computer science or a related field. Familiarity with version control systems like Git, build tools such as Maven or Gradle, and experience with IDEs like IntelliJ IDEA or Eclipse are common technical requirements. Strong problem-solving, eagerness to learn, and effective teamwork are standout soft skills in this role. These skills ensure you can write reliable code, collaborate efficiently, and adapt to evolving technical challenges in software development projects.

What is the difference between Junior Java Software Engineer vs Java Developer?

AspectJunior Java Software EngineerJava Developer
Required CredentialsTypically a bachelor's degree in Computer Science or related field; some certifications like Oracle Java CertificationSimilar credentials; often holds Java certifications and a degree in a related field
Work EnvironmentEntry-level position in development teams, often under supervision, focusing on coding and testingCan be entry to mid-level, involved in designing, coding, and maintaining Java applications
Employer & Industry UsageUsed across tech companies, startups, and corporate IT departmentsCommonly used in software development firms, tech companies, and enterprise environments

While both roles involve Java programming, a Junior Java Software Engineer typically focuses on learning and supporting development tasks under supervision, whereas a Java Developer may have more responsibility in designing and implementing Java applications. The roles often overlap, but the engineer role emphasizes entry-level growth, while the developer role can involve more independent work.

What are the most commonly searched types of Java Software Engineer jobs in Idaho Falls, ID?

The most popular types of Java Software Engineer jobs in Idaho Falls, ID are:

What cities near Idaho Falls, ID are hiring for Junior Java Software Engineer jobs?

Cities near Idaho Falls, ID with the most Junior Java Software Engineer job openings:

Reactor Multiphysics Methods Developer

Idaho National Laboratory

Idaho Falls, ID • On-site

$95K - $195K/yr

Full-time

Medical, Dental, Vision, Retirement, PTO

Posted 10 days ago


Idaho National Laboratory rating

8.8

Company rating: 8.8 out of 10

Based on 16 frontline employees who took The Breakroom Quiz

17th of 121 rated laboratories


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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