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Junior Java Developer Jobs in Chesterfield, MO (NOW HIRING)

AG Technologies

Junior JAVA Devloper

Chesterfield, MO · On-site

$300/wk

... engineering, interfacing, integration of hardware and software systems to include an understanding ... Experience in Java development This position requires a TS/SCI clearance with a polygraph.

AG Technologies

Junior JAVA Devloper

Chesterfield, MO · On-site

$300/wk

... engineering, interfacing, integration of hardware and software systems to include an understanding ... Experience in Java development This position requires a TS/SCI clearance with a polygraph.

Software Technology Inc

Java Developer

Maryland Heights, MO · On-site

$49.25 - $63.75/hr

... for Java EE Developers, GitHub, Jira, Jenkins, shell scripting. Requires advanced knowledge of ... Provide mentorship and coaching to entry, junior and associate level team members, including ...

Futran Tech Solutions Pvt. Ltd.

Java Developer

Saint Louis, MO · On-site

$49.50 - $64.25/hr

Java Developer Location: St. Louis, MO Strong Programming skills (OOP, SOLID, 12-factor). Java is preferred. Experience with distributed systems design and architecture Strong experience with CI/CD ...

Argyle Infotech

Java Developer

Saint Louis, MO · On-site

$49.50 - $64.25/hr

Java Developer St Louis, MO (Onsite from day 1) Client: Mastercard Interview Process: 3 rounds will be Zoom Video Strong Java developer with very good understanding of micro services. Grasp of ...

Argyle Infotech

Java Developer

Saint Louis, MO · On-site

$49.50 - $64.25/hr

Java Developer St Louis, MO (Onsite from day 1) Client: Mastercard Interview Process: 3 rounds will be Zoom Video Strong Java developer with very good understanding of micro services. Grasp of ...

Argyle Infotech

Java developer

Saint Louis, MO · On-site

$75/hr

Java Developer Mastercard St Louis, MO (Onsite from day 1) $75/Hr or $110K + Benefits for FTEs with Altimetrik Interview Process: 3 rounds will be Zoom Video Strong Java developer with very good ...

Argyle Infotech

Java developer

Saint Louis, MO · On-site

$75/hr

Java Developer Mastercard St Louis, MO (Onsite from day 1) $75/Hr or $110K + Benefits for FTEs with Altimetrik Interview Process: 3 rounds will be Zoom Video Strong Java developer with very good ...

Apex Informatics

Java Developer

Saint Louis, MO · On-site

$49.50 - $64.25/hr

Java Developer Location: St Louis, MO * 10+ years of hands-on software engineering experience * Excellent hands-on experience in Java * Experience in developing REST services. * Experience in unit ...

Damco

Java Developer

O Fallon, MO · On-site

$47.75 - $61.75/hr

Sr. Java Developer Key Skills and Experience: * Strong hands on experience in Java(J2ee) * Strong in webservices(microservices), Rest API's, Oracle DB knowledge, Cloud native(preferably AWS or Azure)

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How much do junior java developer jobs pay per year?

As of May 28, 2026, the average yearly pay for junior java developer in Chesterfield, MO is $105,729.00, according to ZipRecruiter salary data. Most workers in this role earn between $74,700.00 and $105,400.00 per year, depending on experience, location, and employer.

What Does a Junior Java Developer Do?

Junior Java developers are entry-level programmers who are part of a team of coders and developers. They work on both front-end and back-end codes to build an application. Being a junior Java developer requires extensive knowledge of coding and the program language JavaScript to develop and troubleshoot products. As a junior Java developer, you run tests to pinpoint errors, migrate code and data, and ensure the program is integrated with other company developments.

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

A Junior Java Developer should have a solid understanding of Java programming, object-oriented principles, and basic software development concepts, often supported by a relevant degree or coding bootcamp. Familiarity with tools such as IntelliJ IDEA or Eclipse, version control systems like Git, and frameworks like Spring Boot is typically expected. Strong problem-solving abilities, attention to detail, and effective teamwork are important soft skills in this role. These competencies enable efficient code development, smooth collaboration, and the ability to quickly adapt to new technologies and project requirements.

What are some common challenges a Junior Java Developer might face during their first year, and how can they overcome them?

Junior Java Developers often encounter challenges such as understanding large codebases, adapting to agile development processes, and managing task priorities. To overcome these hurdles, it’s helpful to proactively seek mentorship from senior developers, regularly review documentation, and participate in code reviews. Effective communication with team members also accelerates learning and helps clarify requirements or technical uncertainties. Embracing continuous learning through online resources and hands-on projects will further strengthen your skills and confidence.

What are Junior Java Developers?

Junior Java Developers are entry-level software engineers who specialize in building and maintaining applications using the Java programming language. They typically work under the supervision of more experienced developers and are responsible for writing code, debugging, and participating in code reviews. Their tasks may also include testing software, learning new frameworks, and assisting with the design and implementation of features. Junior Java Developers usually have foundational knowledge of Java and related technologies, and they are eager to develop their skills through hands-on experience.

Will AI replace Java devs?

AI is unlikely to fully replace Java developers, as their role involves complex problem-solving, system design, and understanding business needs that AI cannot fully replicate. Instead, AI tools can assist Java developers by automating repetitive tasks and improving productivity, making their skills more valuable. Continuous learning and adapting to new technologies remain important for Java developers to stay relevant in the evolving tech landscape.

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

AspectJunior Java DeveloperJava Developer
Required Experience0-2 years2+ years
CertificationsOptional, entry-level certificationsOptional, advanced certifications
Work EnvironmentSupportive, learning-focused teamsProject-driven, independent roles
ResponsibilitiesAssist in coding, bug fixing, learning frameworksDesign, develop, maintain Java applications

The main difference between a Junior Java Developer and a Java Developer lies in experience, responsibilities, and independence. Junior Java Developers are typically entry-level, focusing on learning and supporting tasks, while Java Developers have more experience and handle complex development projects independently.

More about Junior Java Developer jobs
What are the most commonly searched types of Java Developer jobs in Chesterfield, MO? The most popular types of Java Developer jobs in Chesterfield, MO are:
What job categories do people searching Junior Java Developer jobs in Chesterfield, MO look for? The top searched job categories for Junior Java Developer jobs in Chesterfield, MO are:
What cities near Chesterfield, MO are hiring for Junior Java Developer jobs? Cities near Chesterfield, MO with the most Junior Java Developer job openings:
Junior Java Developer jobs near you
Junior Java Developer: Mastercard

Junior Java Developer: Mastercard

ShiftCode Analytics

O Fallon, MO • Hybrid

Other

This job post has expired 1 day ago. Applications are no longer accepted.

Job description

Junior Java Developer

Interview: Coding Test + F2F interview This is hybrid from day-1 (Need only local candidates) Visa: USC, GC, GC EAD, H4, L2

Description: We are looking for more junior Java developers that have experience with testing that are looking to get into testing.

Biggest thing will be confidence with reading code and implementing changes. Must have Java Development experience.

Role:

  • Develop test plans from high level design documents
  • Write/execute functional, integration and User Acceptance Testing (UAT) tests
  • Review traces/logs to ensure all test paths were covered
  • Conduct root cause analysis to create detailed defects the development teams can quickly address
  • Identify and remove all blockers to ensure all testing is completed on time
  • Work with the QA team to move tests to the regression suite

Skills:

  • Can understand complex systems and identify and design automated and manual test scenarios to strengthen existing test coverage.
  • In-depth knowledge of test strategies, e.g. Chaos testing, mutation testing.
  • Proven experience in elevating test standards and spearheading quality initiatives.
  • Prior experience in leading a small quality team an advantage.
  • Excellent communication, documentation and collaboration skills.
  • Show initiative and demonstrate a willingness to take on challenging opportunities and navigate ambiguity.
  • A critical thinker who brings vision and insights to how we test and can influence others.
  • Experience with Unit Testing and Test-Driven Development methodologies
  • Excellent hands-on test automaton skills in Java with experience in unit, functional and integration testing.
  • Expert in full stack software development test approaches & frameworks: TDD/BDD, Unit tests, Cucumber, Spock, Groovy, Cypress.

Required Qualifications:

  • Bachelor's degree in Computer Science, or related technical discipline AND over 7 years of technical experience as a software and/or test engineer

Preferred Qualifications:

  • Experience with C
  • Experience with Linux
  • Experience with ISO 8583 standard
  • Experience with the t3:Switch payment testing platform
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About ShiftCode Analytics

Sourced by ZipRecruiter

We specialize in solid end-to-end delivery of tailor-made technology solutions designed by the Top 1% Software Engineering teams. Our innate digital leadership identity powers transformation across every industry. We are always ready to drive meaningful change with a strategic vision for the future. We rigorously test for logical/mathematical reasoning skills, technical ability and soft skills in our interview process. Only those engineers who score highly across each of these areas are presented to our clients.

Industry

It services

Company size

11 - 50 Employees

Headquarters location

Tampa, FL, US

Year founded

2019

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