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Freelance Java Spring Developer Jobs in Missouri

Jobgether

$39.25 - $51/hr

Our partner is looking for a Java/Spring Boot Developer based in Netherlands. We are seeking a skilled backend developer to design, build, and maintain scalable applications and services using Java ...

The Giant Bullseye

Senior Java Engineer

Saint Louis, MO · On-site

$55.75 - $71/hr

The ideal candidate will have deep expertise in Java, Spring Boot, and microservices architecture ... Collaborate with cross-functional teams including DevOps, QA, and product to deliver high-quality ...

Palnar

Backend Java Engineer W/IBM MQ Exp

O Fallon, MO · On-site

$47.25 - $61.25/hr

Senior Software Development Engineer (Specialty) - Level 7 Location: O'Fallon, MO/Hybrid Duration ... Proficient in core java * Spring boot preferred. * Messaging services * MQ's or any other tool ...

Kanshe Infotech

Software Engineer Java

Saint Louis, MO · On-site

$49 - $67.25/hr

Software Engineer- Java Location: St Louis MO, Charlotte NC, Coppell TX Keys for This Role * Need ... Java 17 * Spring Boot * ECS * Aurora PostgreSQL * SQS FIFO * EventBridge * MSK The systems will be ...

Tata Consultancy Service Limited

Java AI Engineer

O Fallon, MO · On-site

$90K - $110K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

... skilled Java Developer with Agentic AI experience to design and develop next-generation Agentic AI applications. The ideal candidate will have strong expertise in Java, Spring Boot, backend ...

Wipro Limited

Senior Java Developer

O Fallon, MO · On-site

$60K - $135K/yr

  • Medical

  • Dental

  • PTO

The ideal candidate should have hands-on expertise in Java, Spring Boot, REST APIs, Microservices Architecture, Cloud Platforms, DevOps practices, and Information Security technologies . The ...

New

CYNET SYSTEMS

Java Full Stack Developer

Saint Louis, MO · On-site

$50/hr

Java/JEE, Spring, Spring boot, REST/SOAP web services, Hibernate, SQL, Tomcat, Application servers (WebSphere), SONAR, Agile, AJAX, Jenkins. * Skills in UML, application designing/architecture ...

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Freelance Java Spring Developer information

What is a freelance Java Spring developer?

A Freelance Java Spring Developer is a self-employed software professional who specializes in building, maintaining, and optimizing applications using the Java programming language and the Spring framework. These developers work on a contract or project basis for various clients, rather than as full-time employees for a single company. Their responsibilities often include designing backend systems, integrating APIs, and ensuring applications are scalable and secure. Freelance Java Spring Developers typically manage their own schedules and may work remotely for clients around the world.

What are the key skills and qualifications needed to thrive as a freelance Java Spring developer?

To thrive as a Freelance Java Spring Developer, you need a solid understanding of Java programming, Spring Framework (including Spring Boot), and experience with RESTful APIs, typically supported by a degree in computer science or relevant certifications. Familiarity with tools like Maven, Git, Docker, and cloud platforms such as AWS or Azure is often required. Strong problem-solving, time management, and client communication skills help you stand out in this role. These competencies ensure you can deliver robust solutions efficiently while managing multiple clients and projects in a dynamic freelance environment.

What are the most common challenges faced by freelance Java Spring developers when working with multiple clients simultaneously?

Freelance Java Spring Developers often juggle projects for multiple clients, which can pose challenges such as managing shifting priorities, aligning with different coding standards, and keeping up with varied communication styles. Successfully navigating these requires strong organizational skills, clear project documentation, and proactive communication to set expectations. Additionally, freelancers must stay updated with the latest Spring framework updates to deliver high-quality, maintainable solutions across diverse client environments.

What is the difference between Freelance Java Spring Developer vs Java Backend Developer?

AspectFreelance Java Spring DeveloperJava Backend Developer
CredentialsOften requires Java certifications, Spring certifications, and relevant experienceTypically requires a Java degree or equivalent experience, with or without certifications
Work EnvironmentIndependent, project-based, remote or on-site freelance workFull-time employment in a company or organization, often in an office setting
Employer & Industry UsageClients across various industries hiring for specific projectsEmployers in tech, finance, e-commerce, and other sectors with ongoing backend needs
Search & Comparison IntentLooking for freelance opportunities or contract work in Java Spring developmentSeeking full-time or permanent backend development roles in Java

In summary, Freelance Java Spring Developers typically work independently on short-term projects, requiring specific certifications and flexible work environments. Java Backend Developers usually hold full-time roles within organizations, focusing on ongoing backend system development.

What are the most commonly searched types of Java Spring Developer jobs in Missouri?

The most popular types of Java Spring Developer jobs in Missouri are:

What are popular job titles related to Freelance Java Spring Developer jobs in Missouri?

For Freelance Java Spring Developer jobs in Missouri, the most frequently searched job titles are:

What job categories do people searching Freelance Java Spring Developer jobs in Missouri look for?

The top searched job categories for Freelance Java Spring Developer jobs in Missouri are:

What cities in Missouri are hiring for Freelance Java Spring Developer jobs?

Cities in Missouri with the most Freelance Java Spring Developer job openings:

Freelance Java Spring Developer jobs near you
Infographic showing various Freelance Java Spring Developer job openings in Missouri as of August 2026, with employment types broken down into 57% Full Time, and 43% Contract. Highlights an 83% In-person, 8% Hybrid, and 9% Remote job distribution.

Java/ Spring boot Developer

Jobgether

On-site, Remote

$39.25 - $51/hr

Contractor

Posted 13 days ago

Job description

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Java/Spring Boot Developer based in Netherlands.

We are seeking a skilled backend developer to design, build, and maintain scalable applications and services using Java and Spring Boot.
This role focuses on developing reliable APIs, implementing backend solutions, and supporting modern software architectures.
You will contribute to building high-quality applications while collaborating with technical teams in an agile environment.
The position requires strong programming expertise, database knowledge, and a commitment to writing clean, maintainable code.
You will have the opportunity to work on challenging development projects with a focus on performance, scalability, and innovation.
This role is ideal for a problem-solver who enjoys creating robust backend solutions and continuously improving engineering practices.

Accountabilities:

The Java/Spring Boot Developer will be responsible for developing backend applications, designing efficient services, and ensuring the reliability and performance of software solutions. The role involves collaborating with cross-functional teams, following best development practices, and contributing to the full software development lifecycle.

  • Develop, enhance, and maintain scalable backend applications using Java and Spring Boot.
  • Design and implement RESTful APIs to support application functionality and integrations.
  • Build and optimize microservices-based solutions following modern architecture principles.
  • Work with relational databases to design, query, and manage application data effectively.
  • Write clean, efficient, and maintainable code aligned with engineering standards.
  • Perform unit testing and contribute to improving application quality and reliability.
  • Use version control and build tools to manage development workflows efficiently.
  • Collaborate with team members in an Agile/Scrum environment to deliver software solutions.
  • Troubleshoot technical issues, identify root causes, and implement effective solutions.
  • Participate in code reviews and contribute ideas to improve development processes.
Requirements:

The ideal candidate is a backend-focused software engineer with strong experience in Java development and modern backend frameworks. Strong analytical skills, technical problem-solving abilities, and effective communication are essential for success in this role.

  • Strong proficiency in Java, including experience with Java versions 8, 11, or 17.
  • Hands-on experience with Spring Boot and microservices development.
  • Experience designing and developing REST APIs.
  • Strong knowledge of SQL databases such as MySQL, PostgreSQL, Oracle, or SQL Server.
  • Experience using Git for version control.
  • Familiarity with build tools such as Maven or Gradle.
  • Experience writing unit tests using JUnit.
  • Understanding of Agile/Scrum development methodologies.
  • Strong problem-solving and analytical skills.
  • Good communication skills and ability to collaborate effectively within technical teams.
Benefits:
  • Fully remote work opportunity.
  • Opportunity to work on modern backend development projects.
  • Exposure to scalable applications, APIs, and microservices architectures.
  • Collaborative environment with experienced technology professionals.
  • Opportunity to strengthen technical expertise across Java-based technologies.
  • Flexible remote setup supporting productivity and work-life balance.
  • Contract opportunity with potential for professional growth.
How Jobgether works:
We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team.
We appreciate your interest and wish you the best!
 Why Apply Through Jobgether? 
 
Data Privacy Notice: By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time.
 
 
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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.
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