1

Junior Software Developer Java Jobs in Missouri (NOW HIRING)

Interco is seeking a talented Junior Software Developer with a strong background in JavaScript and React.js to contribute to an innovative Enterprise Resource Planning (ERP) project. In this role ...

Junior Software Developer

Saint Louis, MO · On-site

$60K - $65K/yr

Interco is seeking a talented Junior Software Developer with a strong background in JavaScript and React.js to contribute to an innovative Enterprise Resource Planning (ERP) project. In this role ...

Junior Software Developer

Saint Louis, MO · On-site

$60K - $65K/yr

Interco is seeking a talented Junior Software Developer with a strong background in JavaScript and React.js to contribute to an innovative Enterprise Resource Planning (ERP) project. In this role ...

Junior Software Engineer

Saint Louis, MO · On-site

$69K - $141K/yr

Job Title: Junior Software Engineer Job Category: Engineering Time Type: Full time Minimum ... Develop, test, and maintain software applications using Java and/or Python. Design and implement ...

New

Junior Application Developer Job Category: Information Technology Time Type: Full time Minimum ... Experience developing software using Java, Python, or both (academic, internship, or professional)

New

Java Developer

Kansas City, MO · On-site

$49.75 - $64.50/hr

Company Description ROLE Software Engineer-Java and Web Technology The Software Engineer is assigned to a specific software solution and is responsible for writing code to meet user interface ...

Java Developers

Maryland Heights, MO · On-site

$49.25 - $63.75/hr

Software Developer Designs, develops, modifies, enhances and implements software systems designed ... Provide mentorship and coaching to entry, junior and associate level team members, including ...

New

Java Developers

Maryland Heights, MO · On-site

$49.25 - $63.75/hr

Software Developer Designs, develops, modifies, enhances and implements software systems designed ... Provide mentorship and coaching to entry, junior and associate level team members, including ...

New

Software Developer

Saint Louis, MO · On-site

$90K - $110K/yr

Software Developer - Enterprise Geospatial Solutions Location: On-Site About the Role Join our ... Advanced proficiency in at least one modern language (Python, Java, JavaScript, React, or .NET)

Software Developer

Saint Louis, MO · On-site

$90K - $110K/yr

Software Developer - Enterprise Geospatial Solutions Location: On-Site About the Role Join our ... Advanced proficiency in at least one modern language (Python, Java, JavaScript, React, or .NET)

We are seeking a Software Engineer to support our client's intelligence analysis products and ... Java, JavaScript or Python enterprise application development. Web services architecture, design ...

next page

Showing results 1-20

Junior Software Developer Java information

See Missouri salary details

$47.9K

$79.3K

$99.9K

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

As of Sep 1, 2026, the average yearly pay for junior software developer java in Missouri is $79,324.00, according to ZipRecruiter salary data. Most workers in this role earn between $67,800.00 and $90,000.00 per year, depending on experience, location, and employer.

What does a junior software developer Java do?

A Junior Software Developer Java is an entry-level programmer who specializes in building, testing, and maintaining software applications using the Java programming language. They typically work under the supervision of senior developers and contribute to coding, debugging, and documentation. Their responsibilities often include fixing bugs, writing unit tests, and collaborating with team members to deliver functional software solutions. This role is ideal for individuals who have a basic understanding of Java and are eager to gain professional experience in software development.

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

To thrive as a Junior Software Developer (Java), you need a solid understanding of Java programming, algorithms, and object-oriented principles, often supported by a degree in computer science or related field. Familiarity with development tools like Eclipse or IntelliJ IDEA, version control systems such as Git, and knowledge of build tools like Maven or Gradle is often required. Strong problem-solving abilities, willingness to learn, and effective communication skills help junior developers collaborate and adapt quickly. These skills are crucial for building reliable software, integrating smoothly into development teams, and growing within the role.

What are some common challenges faced by junior software developers working with Java, and how can they overcome them?

Junior Software Developers working with Java often encounter challenges such as understanding complex codebases, managing version control with tools like Git, and applying best practices for clean and efficient code. To overcome these obstacles, it's helpful to actively participate in code reviews, seek guidance from senior developers, and make use of online resources and documentation. Joining stand-up meetings and collaborating closely with teammates can also accelerate learning and help new developers adapt to the team's workflow.

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

AspectJunior Software Developer JavaJunior Software Developer Python
Required CredentialsBachelor's in CS or related field, Java certifications (optional)Bachelor's in CS or related field, Python certifications (optional)
Work EnvironmentEnterprise applications, backend development, large-scale systemsData analysis, scripting, web development, AI/ML projects
Employer & Industry UsageFinancial services, enterprise software, telecomTech startups, data science firms, research institutions
Common Search & ComparisonYesYes

Both roles typically require a bachelor's degree in computer science or related fields. Java developers often work on enterprise-level applications in industries like finance and telecom, while Python developers focus on data analysis, scripting, and AI projects in startups and research. The choice depends on your career interests and industry focus.

What are popular job titles related to Junior Software Developer Java jobs in Missouri?

For Junior Software Developer Java jobs in Missouri, the most frequently searched job titles are:

What cities in Missouri are hiring for Junior Software Developer Java jobs?

Cities in Missouri with the most Junior Software Developer Java job openings:

Infographic showing various Junior Software Developer Java job openings in Missouri as of August 2026, with employment types broken down into 1% As Needed, 84% Full Time, 10% Part Time, and 5% Contract. Highlights an 86% Physical, 4% Hybrid, and 10% Remote job distribution, with an average salary of $79,324 per year, or $38.1 per hour.

Junior Software Developer

Interco

Saint Louis, MO

$60K - $65K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 4 days ago


Job description

Company Description

Interco is a global metals trading and recycling company headquartered in St. Louis with facilities in Missouri and Illinois. The company buys, sells, and processes nonferrous metals and electronics scrap worldwide utilizing established partnerships with end consumers in the United States, Europe, Latin America, and Asia.

Job Description

Interco is seeking a talented Junior Software Developer with a strong background in JavaScript and React.js to contribute to an innovative Enterprise Resource Planning (ERP) project. In this role, the successful candidate will take the lead in crafting and executing sophisticated user interfaces for the company’s ERP software, aiming to deliver an unparalleled user experience. The Software Developer will collaborate with development team members and management to ensure projects align with the needs of the company. This role involves turning project requirements into functional, visually captivating interfaces that solve problems, optimize workflows, and provide valuable data that offers real-time business insight. Join Interco to be at the forefront of developing solutions that redefine efficiency and impact in ERP systems. 

Responsibilities Include 

  • Develop responsive and user-friendly front-end interfaces for our ERP software using JavaScript, HTML, CSS, and React.js. 
  • Collaborate with development team to design, consume, and integrate RESTful APIs that retrieve and update data from PostgreSQL backends. 
  • Work closely with UI/UX designs to translate wireframes and mockups into functional user interfaces, ensuring consistency with design guidelines and best practices. 
  • Participate in defining API contracts, perform contract and integration debugging, and collaborate on end-to-end testing. Collaborate on CI/CD pipelines and use containerized development environments. 
  • Write and maintain technical documentation. 
  • Implement and maintain reusable components and libraries to streamline development and ensure consistency across ERP software. 
Qualifications
  • Bachelor’s degree in Computer Science, Software Engineering, or a related field. 
  • Proven experience as a Software Developer, building complex web applications or ERP systems with a portfolio representative of a strong technical acumen. 
  • Proficiency in front-end technologies such as HTML5, CSS3, JavaScript, and various front-end frameworks (e.g., React, Angular, Vue.js) with a solid understanding of responsive design principles. 
  • Practical experience consuming and integrating RESTful APIs; experience building RESTful APIs with FastAPI is a plus. 
  • Solid working knowledge of PostgreSQL (writing queries, schema design, indexing, migrations) 
  • Experience with version control systems and collaboration tools such as Git and Figma. 
  • Strong problem-solving skills and attention to detail to identify and resolve issues effectively. 
  • Excellent communication and teamwork skills to collaborate with cross-functional teams effectively. 

Additional Information
  • $60,000-$65,000 
  • Salary plus annual performance review and bonus 
  • 401(k) with generous company match after one year 
  • Paid vacation Christmas Eve through – New Year’s Day for all employees 
  • Accelerated paid Vacation time 
  • Company paid $25K life insurance policy 
  • 100% Company-paid Short-Term Disability, Long-Term Disability 
  • 100% Company-paid Medical, Dental, Vision 

As a matter of company policy, the Company does not sponsor employment visas or hire from out of the USA nor does the company sponsor candidates who do not currently reside within the USA without an existing H-1B visa. 

This job description is designed to provide a general overview of the requirements of the job and does not entail a comprehensive listing of all activities, duties or responsibilities that will be required. Interco reserves the right to modify this job description at any time, including assigning or reassigning job duties or eliminating this position at any time.  

Candidate information will be kept confidential according to EEO guidelines.  

Work remotely: No  

www.intercojobs.com  

Company Information  

Interco has been recycling computers, batteries, metals, and electronics with a focused track record of innovation and integrity since 1996. The company specializes in the placement of smelter-ready materials catering to commercial, industrial, dealer, and government organizations nationwide.   

The Interco recycling facilities are separated into three departments: nonferrous metals, computers and electronics, and battery processing. The nonferrous facility is located on the 40-acre main campus in Madison (IL) while the computers and electronics are processed in Edwardsville where the Administrative and some logistics offices are located. The commercial department is located on The Hill in St. Louis.  

www.intercojobs.com â€¯â€¯