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Java Junior Jobs in Roxana, IL (NOW HIRING)

Navstar

Software Engineer

Saint Louis, MO

Guide and mentor junior and mid-level engineers, enforce code quality, and lead peer reviews ... Python, Java, or JavaScript and Go * Front-end and Back-end Frameworks: React, Angular, Vue.js ...

Equifax, Inc.

Senior Platform Engineer

Saint Louis, MO · On-site

$101K - $139K/yr

As a technical leader, you will mentor junior engineers, lead blameless postmortems, and ... Experience in languages such as Python, Bash, Java, Go JavaScript and/or node.js * Demonstrable ...

Peraton

Test Systems Engineer

Saint Louis, MO

$112K - $179K/yr

Guides Mid-level and Junior-level system engineers performing test and evaluation across the ... Java, Bash, Curl, XML, JSON, SQL, Python, Javascript, and AWS and C2S. * Experience with ...

Peraton

Test Systems Engineer

Saint Louis, MO

$112K - $179K/yr

Guides Mid-level and Junior-level system engineers performing test and evaluation across the ... Java, Bash, Curl, XML, JSON, SQL, Python, Javascript, and AWS and C2S. * Experience with ...

Peraton

Test Systems Engineer

Saint Louis, MO · On-site

$112K - $179K/yr

Guides Mid-level and Junior-level system engineers performing test and evaluation across the ... Java, Bash, Curl, XML, JSON, SQL, Python, Javascript, and AWS and C2S. * Experience with ...

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All JobsJava Junior JobsJava Junior Jobs in Roxana, IL

Java Junior information

See Roxana, IL salary details

$58.5K

$102.4K

$154.4K

How much do java junior jobs pay per year?

As of Jun 20, 2026, the average yearly pay for java junior in Roxana, IL is $102,442.00, according to ZipRecruiter salary data. Most workers in this role earn between $72,400.00 and $102,100.00 per year, depending on experience, location, and employer.

What is the difference between Java Junior vs Java Developer?

AspectJava JuniorJava Developer
Required Experience0-2 years2+ years
CertificationsOptional, entry-level certificationsOptional, advanced certifications
Work EnvironmentTraining, mentorship-focusedProject-driven, independent
ResponsibilitiesLearning, basic coding tasksDesign, develop, maintain Java applications

Java Junior roles are entry-level positions focused on learning and supporting Java projects, often requiring minimal experience. Java Developers have more experience, handle complex tasks, and contribute to project design and implementation. The transition from Java Junior to Java Developer involves gaining skills, experience, and certifications over time.

What are some typical challenges a Java Junior might face when starting out, and how can they overcome them?

As a Java Junior, you may encounter challenges like understanding complex codebases, adapting to agile development practices, and debugging unfamiliar issues. It's common to feel overwhelmed at first, but asking questions, participating in code reviews, and pairing with more experienced developers can accelerate your learning. Regularly practicing coding, studying documentation, and using collaboration tools will also help you quickly become a productive member of the team.

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

To thrive as a Java Junior, you need a solid understanding of Java programming, object-oriented principles, and a relevant degree or coursework in computer science. Familiarity with development tools like Eclipse or IntelliJ IDEA, version control systems (such as Git), and basic knowledge of databases are typically expected. Strong problem-solving abilities, eagerness to learn, and good communication skills help juniors excel in collaborative and fast-paced environments. These skills enable efficient coding, effective teamwork, and smooth adaptation to evolving project requirements.

What are Java Junior developers?

Java Junior developers are entry-level software engineers who specialize in programming using the Java language. They typically have a foundational understanding of Java syntax, object-oriented programming concepts, and basic software development practices. Java Juniors often assist with coding, debugging, and testing under the supervision of more experienced developers, while continuously learning and building their technical skills. Their responsibilities may also include maintaining existing applications and writing simple features as part of a development team.
What are popular job titles related to Java Junior jobs in Roxana, IL? For Java Junior jobs in Roxana, IL, the most frequently searched job titles are:
What cities near Roxana, IL are hiring for Java Junior jobs? Cities near Roxana, IL with the most Java Junior job openings:
Java Junior jobs near you
Test Systems Engineer - Senior with Security Clearance

Test Systems Engineer - Senior with Security Clearance

PROCLEARED LLC

Saint Louis, MO • On-site

$101K - $139K/yr

Other

Medical, Dental, Vision, Life, Retirement, PTO

Posted 23 days ago

Job description

Senior-level Test Systems Engineers assist in leading Application, System and Integration Testing teams performing test and evaluation across the National System of Geospatial-intelligence (NSG), Allied System of Geospatial-intelligence (ASG) and Federal Agencies to ensure timely and accurate GEOINT. Duties include: * Guides Mid-level and Junior-level system engineers performing test and evaluation across the National System of Geospatial-intelligence (NSG), Allied System of Geospatial-intelligence (ASG) and Federal Agencies.
* Performs testing of applications and application programming interfaces (APIs) in DevOps pipelines utilizing quality assurance measures established by the government and industry best practices.
* Performs independent integration testing on the system software or hardware to determine the system’s compliance with specified requirements.
* Plans and executes manual tests, and automated test scripts using scripting and programming languages.
* Supports technical investigations for defects discovered during test activities.
* Refer to Section 3.3.3: NGA Test Organization (NTO) for a listing of expected work activities the Test Systems Engineer position would be required to support. Requirements * TS/SCI
* 12+ years of experience.
* Bachelor’s degree or higher in Engineering, Computer Science, Information Technology, Management Information Systems, or related STEM degree program, or equivalent Senior level experience as a Test Systems Engineer.
* 12+ years of experience with test management and defect tracking tools.
* Experience with three or more of the following; JMeterand, Jenkins, Docker, Postman, Swagger, Nexus, Apigee or GitHub/GitLab (or equivalent software packages), Java, Bash, Curl, XML, JSON, SQL, Python, Javascript, and AWS and C2S.
* Experience with traditional, Agile, and DevOps development practices and associated testing strategies.
Desired: * Master’s degree in Computer Science, Information Technology, Management Information Systems, or related STEM degree program.
* Working knowledge of Model Based Systems Engineering, processes, tools and languages.
* Working knowledge of Software Development Frameworks.
Founded in 2011, ProCleared LLC is a dedicated Service-Disabled Veteran-Owned Small Business (SDVOSB) serving the Intelligence Community and the Department of Defense. We pride ourselves on swiftly delivering solutions tailored to government needs. Our commitment extends beyond our clients; we foster an empowering work environment and offer a comprehensive benefits package, including 100% employer-paid premiums for health, dental, vision, and life insurance, Paid Time Off, federal holidays, and a competitive 401k match. At ProCleared, we value our people, partners, and purpose.

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