ZipRecruiter

Log In

1

Junior Java Programmer Jobs in Missouri (NOW HIRING)

MasterCard

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

... junior team members, and performing code reviews. This is a vital role responsible for planning ... JAVA JDK 11-17, Spring Boot, Spring Security, Maven, Hibernate / JPA, REST, and SQL Server or other ...

Mastercard, Inc.

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

... using Java, Spring Boot, and microservices architecture. • Deploy, manage, and optimize ... Mentor junior engineers, share technical expertise, and provide guidance on engineering best ...

Walmart

Software Engineer III

Noel, MO · On-site

$90K - $180K/yr

Build robust, high-performing distributed systems using Java, Spring Boot, REST APIs, Kafka, and ... mentoring junior engineers and driving execution. * Prior experience in eCommerce or retail ...

Walmart

Software Engineer III

Anderson, MO · On-site

$90K - $180K/yr

Build robust, high-performing distributed systems using Java, Spring Boot, REST APIs, Kafka, and ... mentoring junior engineers and driving execution. * Prior experience in eCommerce or retail ...

Walmart

Software Engineer III

Cassville, MO · On-site

$90K - $180K/yr

Build robust, high-performing distributed systems using Java, Spring Boot, REST APIs, Kafka, and ... mentoring junior engineers and driving execution. * Prior experience in eCommerce or retail ...

Mastercard, Inc.

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

... Java and Spring Boot, focusing on performance, scalability, and reliability • Translate ... junior engineers and support knowledge sharing across the team • Contribute to a culture of ...

MasterCard

Senior Software Engineer

O Fallon, MO

$114K - $151K/yr

... using Java and Spring Boot, focusing on performance, scalability, and reliability Translate ... junior engineers and support knowledge sharing across the team Contribute to a culture of ...

Mastercard, Inc.

Senior Software Engineer

O Fallon, MO · On-site

$114K - $151K/yr

... junior engineers • Deliver department and external presentations sharing results with stakeholders All About You • Strong software engineering experience writing applications using Java Spring ...

MasterCard

Senior Software Engineer

O Fallon, MO · On-site +1

$114K - $151K/yr

... junior engineers Deliver department and external presentations sharing results with stakeholders All About You Strong software engineering experience writing applications using Java Spring Boot ...

Deloitte

CyberArk Senior Consultant

Kansas City, MO · On-site

Experience with object-oriented programming using languages such as Java, Python, or JavaScript ... Experience mentoring junior or mid-level developers, leading code reviews, and providing ...

Walmart

(USA) Senior, Software Engineer

Anderson, MO · On-site

$90K - $180K/yr

Our technology stack primarily includes Java for backend and UI services, offering strong ... mentorship to junior engineers. • Work in an Agile environment and follow engineering best ...

Walmart

(USA) Senior, Software Engineer

Cassville, MO · On-site

$90K - $180K/yr

Our technology stack primarily includes Java for backend and UI services, offering strong ... mentorship to junior engineers. • Work in an Agile environment and follow engineering best ...

Walmart

(USA) Senior, Software Engineer

Noel, MO · On-site

$90K - $180K/yr

Our technology stack primarily includes Java for backend and UI services, offering strong ... mentorship to junior engineers. • Work in an Agile environment and follow engineering best ...

next page

Showing results 1-20

All JobsJava Programmer JobsJunior Java Programmer JobsJunior Java Programmer Jobs in Missouri

Junior Java Programmer information

See Missouri salary details

$57.2K

$100.2K

$151K

How much do junior java programmer jobs pay per year?

As of Jul 10, 2026, the average yearly pay for junior java programmer in Missouri is $100,202.00, according to ZipRecruiter salary data. Most workers in this role earn between $70,800.00 and $99,900.00 per year, depending on experience, location, and employer.

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

To thrive as a Junior Java Programmer, you need a solid understanding of Java programming, object-oriented concepts, and a relevant degree or coursework in computer science. Familiarity with development environments like Eclipse or IntelliJ IDEA, version control systems such as Git, and basic knowledge of databases are typically required. Strong problem-solving skills, attention to detail, and the ability to communicate effectively within a team are important soft skills. These competencies are crucial for delivering clean, maintainable code and collaborating efficiently on software projects.

What are Junior Java Programmers?

Junior Java Programmers are entry-level software developers who specialize in writing, testing, and maintaining code using the Java programming language. They typically work under the supervision of more experienced developers and assist in developing applications, debugging issues, and learning best practices in software development. Their responsibilities often include understanding project requirements, writing clean code, and collaborating with team members to deliver high-quality software solutions. This role is ideal for individuals who have foundational knowledge of Java and are looking to gain professional experience in the field.

What types of projects or tasks can a Junior Java Programmer expect to work on in their first year?

As a Junior Java Programmer, you can expect to work on a variety of tasks such as debugging existing code, writing unit tests, developing small features, and assisting with backend development on larger projects. You'll often collaborate closely with senior developers and participate in code reviews to learn best practices. Many organizations assign juniors to maintenance tasks or simpler modules at first, gradually increasing responsibility as you build confidence and technical skills. This hands-on experience is invaluable for understanding software development workflows and improving your coding abilities.

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

AspectJunior Java ProgrammerJava Developer
Required CredentialsBasic Java certifications, some programming experienceAdvanced Java certifications, multiple years of experience
Work EnvironmentEntry-level projects, supervised tasksDesign, develop, and maintain complex applications
Employer & Industry UsageTech companies, startups, IT departmentsSoftware firms, enterprise solutions, large-scale projects

While Junior Java Programmers focus on learning and executing basic Java tasks under supervision, Java Developers handle more complex development responsibilities, including designing and implementing software solutions. The roles differ mainly in experience level and scope of work, but both require a solid understanding of Java programming.

What are the most commonly searched types of Java Programmer jobs in Missouri? The most popular types of Java Programmer jobs in Missouri are:
What cities in Missouri are hiring for Junior Java Programmer jobs? Cities in Missouri with the most Junior Java Programmer job openings:
Junior Java Programmer jobs near you
Infographic showing various Junior Java Programmer job openings in Missouri as of July 2026, with employment types broken down into 1% Internship, 87% Full Time, 4% Part Time, and 8% Contract. Highlights an 83% Physical, 4% Hybrid, and 13% Remote job distribution, with an average salary of $100,202 per year, or $48.2 per hour.
Software Engineer

Software Engineer

Reinventing Geospatial, Inc. (RGi)

Saint Louis, MO

Full-time

Medical, Dental, Retirement, PTO

Posted 14 days ago

Job description

Reinventing Geospatial (RGi) is a leading expert in geospatial solutions for Defense, Intelligence, and Federal clients. We enhance situational awareness for soldiers and analysts by integrating software development with geospatial intelligence. Our projects range from data collection to advanced deep learning, leveraging tools like Python, Java, and ArcGIS.
 
We don't just fill roles we build teams of high performers and leaders who make an immediate impact. At our core, we're driven by innovation and powered by people who work at the intersection of passion and performance. Here, you'll collaborate with bold thinkers, leverage cutting edge technology, and tackle meaningful challenges from day one.
 
Our culture is defined and anchored by three pillars:
 
Energy: We bring passion, purpose, and urgency to our work.
Edge: We take initiative, embrace growth, and step outside our comfort zone.
Execution: We get things done smartly, decisively, and with real results.
 
If you're the kind of person who leads with initiative, thrives in a fast-paced environment, and is eager to create real impact, we want you on our team.
 
Clearance:
Active Top Secret clearance with an ability to obtain SCI access and willingness to obtain CI Polygraph
US Citizenship Required 
As a Software Engineer, you will...
  • Lead full-stack software development of enterprise applications and services supporting our customer's GEOINT mission.
  • Design and implement secure, scalable microservices in cloud environments such as AWS GovCloud or C2S.
  • Guide and mentor junior and mid-level engineers, enforce code quality, and lead peer reviews.
  • Build and deploy applications using DevSecOps pipelines, container orchestration, and Infrastructure-as-Code tools.
  • Collaborate with cross-functional teams including analysts, UI/UX designers, DevOps engineers, and product owners.
  • Translate mission requirements into technical implementations that meet security, performance, and scalability needs.
  • Ensure compliance with our customer and IC cybersecurity and accreditation standards (e.g., RMF, STIGs).
Software Engineer Qualifications...
  • Bachelor's degree in Computer Science, Software Engineering, or related field and 6+ years experience.
  • Strong proficiency with: HTML, CSS, JSON, Ajax, and REST APIs
  • Object-oriented Programming: Python, Java, or JavaScript and Go
  • Front-end and Back-end Frameworks: React, Angular, Vue.js, jQuery, Spring Boot, Django, Node.js, Flask, or Svelte.
  • A strong working knowledge of: AWS, Azure, or similar cloud platforms, MySQL, PostgreSQL, or SQL Server
  • Hands on experience with: Windows, Linux, Git
  • Deep understanding of modern software design patterns and coding standards.
  • Experience architecting, developing, and delivering complex software systems into production.
  • Hands on experience developing containerized applications with Docker and Kubernetes.
  • Experience deploying to and developing in classified cloud environments (e.g., C2S, AWS GovCloud).
  • Familiarity with DevSecOps tools and practices (e.g., GitLab CI/CD, Jenkins, SonarQube, Nexus, Terraform).
  • Solid understanding of Agile methodologies and secure software lifecycle principles.
  • Strong, self-motivated desire to learn new programming languages, tools, frameworks, and techniques.
Additional Skills We'd Like to See:
  • Frontend Web Development: UI/UX
  • NoSQL Database: OpenSearch/Elasticsearch.
  • Cloud Exposure: AWS, IBM, Google, Azure, and Oracle and S3, SQS, SNS, EC2, CloudFormation and RDS.
  • Knowledge of geospatial data formats, tools, and standards (e.g., OGC, GeoServer, PostGIS, ESRI).
  • Experience with IC enterprise environments and tools (e.g., Keycloak, Vault, CloudFormation)
  • Certifications such as AWS Certified Developer, CISSP, Security+, SAFe Agile or similar.
Who we are:
Reinventing Geospatial, Inc. (RGi) is a fast-paced small business that has the environment and culture of a start-up, with the stability and benefits of a well-established firm. We solve complex problems within geospatial software development and national defense to make an Immediate Impact for our nation's soldiers and analysts.

We pride ourselves on giving employees an exceptional life experience, where creativity thrives, and challenges are simply part of the fun. We provide truly excellent benefits, including:

        100% paid employee healthcare & dental insurance
        Paid parental leave
        401k with matching
        Escalating vacation time
        Referral bonuses
        Tuition reimbursement
        Professional development training
        Free beverages and snacks
        Weekly catered lunches and breakfast on Fridays
 
Grow to be our next leader:
At RGi, fostering a strong and organic corporate culture is paramount and serves as a compass on the decisions we make and how we operate the company. We believe our culture of camaraderie, innovation, and collaboration reflects the caliber of our employees and their dedication to the mission of providing quality software to our customers. As such, we want our employees to feel empowered to seek growth and leadership opportunities within the company and position us to maintain our culture as we grow. RGi provides opportunities, resources, training, and mentorship to all our employees to let them take control of their careers and become a leader or a crucial member of our company. If this is what you are looking for in a company, then you are what we are looking for in an employee.

Reinventing Geospatial, Inc. is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, sex, national origin, age, veteran status, disability, or any other protected class. U.S. Citizenship is required for all positions.
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
apply for this job

Apply