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Freelance Java Spring Developer Jobs in Olivette, MO

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 ...

Java Developer - DB

O Fallon, MO

$47.75 - $61.75/hr

Java Developer - Databricks consultants Location: Ofallon, MO Roles and responsibilities: Data ... Proficiency with Java, Spring Boot, Microservices Experience with a UI framework such as React.js ...

Java Developer

Saint Louis, MO · On-site

$49.50 - $64.25/hr

Title: Java Developer Location: St Louis, MO * 10+ years of hands-on software engineering ... Experience with Java, ElasticSearch, Kubernetes, Spring, Spring Boot, * Experience developing e ...

Java Developer

Saint Louis, MO

$49.50 - $64.25/hr

Strong understanding of Object Oriented Programming * Analyze and develop Java solutions based on ... Experience with MVC Frameworks Spring MVC, Hibernate, Spring, * REST & Web Services * Experience ...

Java Developer

Saint Louis, MO

$49.50 - $64.25/hr

Strong understanding of object oriented programming * Ability to analyze and develop Java solutions ... Experience with MVC frameworks Spring MVC, Hibernate, Spring * REST & Web Services * Experience ...

Java Developer

Saint Louis, MO · On-site

$49.50 - $64.25/hr

Strong understanding of Object Oriented Programming * Analyze and develop Java solutions based on ... Experience with MVC Frameworks Spring MVC, Hibernate, Spring, * REST & Web Services * Experience ...

Java Developer

Saint Louis, MO

$49.50 - $64.25/hr

As a Backend Engineer, you will be responsible for developing and maintaining robust Java ... Your expertise in Java 8 and 11, Spring Boot, Microservices architecture, Kafka, and RESTful APIs ...

Employment type - Full Time Job Title - Java Lead Developer Job Location - O Fallon, MO Duration ... Spring, Spring Boot • Web application frameworks like AngularJS, Spring) • Analytical and ...

Java Developer

Saint Louis, MO

$49.50 - $64.25/hr

Java Developer Location: St.Louis, MO - Inperson Interview Job Type: Full Time Only OPT EAD, CPT ... Spring, Spring Boot Knowledge of ORM framework such as Hibernate Should have worked with Maven ...

Java Developer

Saint Louis, MO · On-site

$49.50 - $64.25/hr

Java Developer Location: St.Louis, MO - Inperson Interview Job Type: Full Time Only OPT EAD, CPT ... Spring Boot • Knowledge of ORM framework such as Hibernate • Should have worked with Maven ...

Sr. Java Developer

Saint Louis, MO · On-site

$55.75 - $71/hr

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers ... Spring Security will be added advantage. (optional). Experience building software in a continuous ...

Java/J2EE Developer

Saint Louis, MO

$49.50 - $64.25/hr

... activities to design JAVA applications. 2. Perform software analysis, programming, testing ... Spring 5. REST Web Services 6. Oracle Database Systems 7. SQL development and operations

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Freelance Java Spring Developer information

See Olivette, MO salary details

$14

$53

$72

How much do freelance java spring developer jobs pay per hour?

As of Jun 18, 2026, the average hourly pay for freelance java spring developer in Olivette, MO is $53.16, according to ZipRecruiter salary data. Most workers in this role earn between $45.96 and $59.52 per hour, depending on experience, location, and employer.

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 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, and why are they important?

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.
Java Full Stack Developer

Java Full Stack Developer

CYNET SYSTEMS

Saint Louis, MO • On-site

$50/hr

Contractor

Posted 16 days ago


Job description

Job Overview:

Requirement/Must Have:

  • 5+ years of experience in Java.
  • Skills in developing applications using multi-tier architecture.
  • Knowledge of GCP/Any cloud.
  • 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, Design Patterns.
  • Angular (2.x or latest version).

Responsibilities:

  • Maintain active relationships with Product Owner to understand business requirements, lead requirement gathering meetings and review designs with the product owner.
  • Own backlog items and coordinate with other team members to develop the features planned for each sprint.
  • Perform technical design reviews and code reviews.
  • Mentor, Lead and Guide the team on technical skills.
  • Be Responsible for prototyping, developing, and troubleshooting software in the user interface or service layers.
  • Perform peer reviews on source code to ensure reuse, scalability and the use of best practices.
  • Participate in collaborative technical discussions that focus on software user experience, design, architecture, and development.
  • Perform demonstrations for client stakeholders on project features and sub features, which utilizes the latest Front end and Backend development technologies.

Skills:

  • Java.
  • Spring.
  • Cloud.

Founded in 2010 and headquartered in the Washington, DC metro area, Cynet Systems Inc. is a leading staffing and recruiting powerhouse. Proudly recognized as a nationally and locally certified diversity firm, Cynet delivers agile, scalable talent solutions across industries. With an active footprint in all 50 U.S. states and Canada, we support thousands of consultants through our expansive, high-performing recruitment engine operating across North America and Asia—ensuring speed, quality, and consistency in every hire.

Cynet Systems logo

About Cynet Systems

Sourced by ZipRecruiter

Cynet Systems Inc is a staffing and recruiting corporation nestled in Ashburn, VA, USA. Established in 2010, the company operates within the Information Technology and Services sector, specializing in providing effective workforce solutions to different business needs, including IT consulting, direct hire, and contract staffing services. Through the years, Cynet Systems has built an impressive portfolio, going beyond borders and expanding its operations internationally in Canada and India. Rooted in its core values of teamwork, leadership, and commitment, Cynet Systems helps businesses unlock their full potential by providing versatile and competent professionals that perfectly align with their needs. Fueled by their unwavering mission to deliver top-tier talent to businesses worldwide, Cynet Systems garnered various recognitions including SIA's fastest-growing staffing firms and Best Place to Work in Virginia for 2019.

Industry

It services

Company size

501 - 1,000 Employees

Headquarters location

Sterling, VA, US

Year founded

2010

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