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Junior Java Backend Developer Jobs in Missouri (NOW HIRING)

Leidos

Mid-Level Backend Software Engineer

Florissant, MO · On-site

$87K - $157K/yr

Design, develop, test, and maintain backend application components using Java or Python * REST API ... Object-Oriented Programming: Apply object-oriented design principles to build scalable and ...

Leidos

Mid-Level Backend Software Engineer

Ballwin, MO · On-site

$87K - $157K/yr

Design, develop, test, and maintain backend application components using Java or Python * REST API ... Object-Oriented Programming: Apply object-oriented design principles to build scalable and ...

Leidos

Mid-Level Backend Software Engineer

Bridgeton, MO · On-site

$87K - $157K/yr

Design, develop, test, and maintain backend application components using Java or Python * REST API ... Object-Oriented Programming: Apply object-oriented design principles to build scalable and ...

Leidos

Mid-Level Backend Software Engineer

Earth City, MO · On-site

$87K - $157K/yr

Design, develop, test, and maintain backend application components using Java or Python * REST API ... Object-Oriented Programming: Apply object-oriented design principles to build scalable and ...

Leidos

Mid-Level Backend Software Engineer

Fenton, MO · On-site

$87K - $157K/yr

Design, develop, test, and maintain backend application components using Java or Python * REST API ... Object-Oriented Programming: Apply object-oriented design principles to build scalable and ...

Leidos

Mid-Level Backend Software Engineer

Hazelwood, MO · On-site

$87K - $157K/yr

Design, develop, test, and maintain backend application components using Java or Python * REST API ... Object-Oriented Programming: Apply object-oriented design principles to build scalable and ...

Leidos

Mid-Level Backend Software Engineer

Saint Ann, MO · On-site

$87K - $157K/yr

Design, develop, test, and maintain backend application components using Java or Python * REST API ... Object-Oriented Programming: Apply object-oriented design principles to build scalable and ...

Leidos

Mid-Level Backend Software Engineer

Arnold, MO · On-site

$87K - $157K/yr

Design, develop, test, and maintain backend application components using Java or Python * REST API ... Object-Oriented Programming: Apply object-oriented design principles to build scalable and ...

Walmart

Backend Senior Software Engineer

Anderson, MO · On-site

$90K - $180K/yr

Expert skills in programming languages such as Java or Python and in interfacing with a backend database using SQL queries. * Expert in database skills in data modeling, indexing, query optimization ...

Walmart

Backend Senior Software Engineer

Noel, MO · On-site

$90K - $180K/yr

Expert skills in programming languages such as Java or Python and in interfacing with a backend database using SQL queries. * Expert in database skills in data modeling, indexing, query optimization ...

Walmart

Backend Senior Software Engineer

Cassville, MO · On-site

$90K - $180K/yr

Expert skills in programming languages such as Java or Python and in interfacing with a backend database using SQL queries. * Expert in database skills in data modeling, indexing, query optimization ...

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Junior Java Backend Developer information

See Missouri salary details

$57.2K

$100.2K

$151K

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

As of Jul 22, 2026, the average yearly pay for junior java backend developer 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 Junior Java Backend Developers?

Junior Java Backend Developers are entry-level software engineers who specialize in building and maintaining the server-side logic of web applications using the Java programming language. They work closely with senior developers to implement APIs, manage databases, and ensure smooth data flow between servers and users. Their responsibilities often include writing clean, efficient code, debugging applications, and learning new technologies as needed. Junior Java Backend Developers typically have a foundational knowledge of Java, SQL, and frameworks like Spring Boot.

What are some common challenges faced by Junior Java Backend Developers when joining a new team?

As a Junior Java Backend Developer, one common challenge is adapting to existing codebases and understanding the team's preferred coding standards and practices. You may also find it challenging to grasp complex system architectures or integrate your code with various APIs and databases. However, most teams provide onboarding support, code reviews, and mentorship to help you ramp up. Collaborating closely with senior developers and asking questions can significantly ease your transition and foster your growth in the role.

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

To thrive as a Junior Java Backend Developer, you need solid knowledge of Java programming, understanding of object-oriented design, and familiarity with backend frameworks like Spring, often supported by a degree in computer science or related field. Experience with relational databases (e.g., MySQL), version control systems (like Git), and exposure to RESTful APIs and build tools (such as Maven) are typically required. Strong problem-solving skills, attention to detail, and effective communication make someone stand out in this role. These skills and qualities are crucial for building reliable, scalable server-side applications and collaborating effectively within a software development team.
What are the most commonly searched types of Java Backend Developer jobs in Missouri? The most popular types of Java Backend Developer jobs in Missouri are:
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What job categories do people searching Junior Java Backend Developer jobs in Missouri look for? The top searched job categories for Junior Java Backend Developer jobs in Missouri are:
What cities in Missouri are hiring for Junior Java Backend Developer jobs? Cities in Missouri with the most Junior Java Backend Developer job openings:
Junior Java Backend Developer jobs near you
Infographic showing various Junior Java Backend Developer job openings in Missouri as of July 2026, with employment types broken down into 94% Full Time, 2% Part Time, and 4% Contract. Highlights an 78% Physical, 4% Hybrid, and 18% Remote job distribution, with an average salary of $100,202 per year, or $48.2 per hour.

Fullstack Engineer (Java + Angular) - Only W2

Saransh Inc

O Fallon, MO • On-site

$49 - $63.50/hr

Contractor

Posted 8 days ago

Job description

Role: Fullstack Engineer (Java + Angular)
Location: O'Fallon, MO (Hybrid - 2 days a week onsite)
Job Type: W2 Contract
 
NOTE: Only W2 required - No C2C (or) Third-party candidates
 
Experience level: Mid-level / Senior
 
 
Mid Level:
 
Description:
  • You will contribute to building scalable backend services using Java/Spring and modern user interfaces using Angular and Node.js within a distributed architecture. Working closely with cross-functional teams, you will help deliver production-grade solutions and continuously improve your skills across cloud platforms, DevOps practices, and observability.
  • You will also leverage AI-assisted development tools to enhance productivity and support different phases of the SDLC.
In this role, you will:
  • Design, develop, and own Java-based backend services and REST APIs in a distributed architecture
  • Build and enhance UI applications using Angular and Node.js
  • Own end-to-end delivery: design, development, testing, deployment, configuration, and documentation
  • Ensure high-quality code through reviews, testing (unit/integration), and automation
Core Requirements:
  • Strong hands-on experience in Java, Spring Boot, and REST APIs
  • Hands-on experience with Angular (2+) and Node.js
  • Experience building and maintaining scalable, production-grade applications
 
Core Engineering Skills:
  • Strong problem-solving and debugging skills in distributed systems
  • Solid understanding of software design principles and best practices
  • Experience in test-driven development (unit, integration testing) 
 
Work experience of 3-5 years
  • Experience with cloud platforms (PCF, Kubernetes, AWS, or Azure)
  • Exposure to CI/CD pipelines and DevOps practices
  • Experience with observability tools (e.g., Splunk, logging, monitoring)
  • Exposure to AI tools for assisted development during SDLC phases
 
Senior Level:
As a senior engineer, you will – 
·      Design, develop, and maintain robust and scalable backend services using Java, Spring Boot, and microservices architecture.
·      Deploy and manage applications on PCF or Kubernetes
·      Develop engaging and responsive user interfaces using modern front-end frameworks such as Angular or React.
·      Participate in PoCs (Proof of Concept) and help the department with selection of vendor solutions, technologies, methodologies and frameworks. 
·      Write clean, well-documented, and testable code.
·      Collaborate with product managers, designers, and other engineers to deliver high-quality products.
·      Participate in code reviews and contribute to improving our development processes.
·      Troubleshoot and resolve complex technical issues.
·      Ensure adequate test coverage in Unit Testing, System Testing/Integration Testing and Performance Testing. 
·      Mentor junior engineers and share your expertise. 
·      Work in an agile environment, participating in sprint planning, daily stand-ups, and retrospectives
 
All About You:
·      Overall 9 years of career experience into Full Stack Development
·      Strong proficiency in Java and Spring boot framework
·      Experience designing and developing microservices
·      Experience with PCF, K8s, Docker, or other cloud platforms
·      Solid understanding of front-end development principles and experience with Angular/React frameworks
·      Proficiency in HTML, CSS, JavaScript, and JQuery
·      Experience with relational databases such as Oracle or PostGreSQL. Well versed with writing efficient and optimised queries
·      Experience with Restful API design and development
·      Experience leveraging or developing solutions using Information Security-related concepts: Cryptography – X.509, public key cryptography standards, JWT, hashing, digital signatures
·      Experience with testing frameworks and methodologies
 
Good to have:
·      Experience with other cloud platforms (e.g., Azure, AWS, GCP)
·      Experience with DevOps practices and tools (e.g., Jenkins, Docker, Kubernetes)
·      Contributions to open source projects