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Contract Java Developer Jobs in Saint Louis, MO (NOW HIRING)

Staffingine LLC

Automation Engineer

Saint Louis, MO · On-site

Contract * Experience in test automation using Karate Framework for API and integration testing ... with DevOps and development teams * Seeking a Specialist with 5 to 7 years of experience in ...

Navtech, Inc.

Sr AWS Developer

Saint Louis, MO · On-site

St Louis, MO - Remote Start Duration: 6+ Months Contract then Permanent Hire - C2H Visa: US Citizen ... Java/Python/Scala * Strong notions of security best practices (e.g. using IAM Roles, KMS, etc.

Booz Allen Hamilton

Agentic AI Developer

O Fallon, IL

$99K - $225K/yr

Experience with programming languages such as Python or Java * Experience with software design ... as well as contract-specific affordability and organizational requirements. The projected ...

Kanak Elite Services Inc

Quality Engineer I

O Fallon, MO · On-site

$67K - $87K/yr

Quality Engineer (Glider required) Duration : 12+ months contract Location : O'Fallon, MO Hybrid ... Java, JavaScript with good understanding of Spring boot and RESTful APIs Experience with unit ...

Adidev Technologies Inc

Android Developer

Saint Louis, MO · On-site

$30 - $40/hr

Highly Competitive, commensurate with expertise Type: Full-time (W2 or Contract 1099), 40 hours per ... Proficiency in Java and Kotlin (at least 1 year of experience). Published at least 1 application on ...

Booz Allen Hamilton

Agentic AI Developer

O Fallon, IL · On-site

$99K - $225K/yr

Experience with programming languages such as Python or Java * Experience with software design ... as well as contract-specific affordability and organizational requirements. The projected ...

TecTammina

Agile Engineering Coach

Saint Louis, MO

... Java Programmer * - 3 years of JUnit, Jenkins/Hudson, Ant/Maven * - Experience coaching and ... Contract to hire after 6 Months Need Citizens Share the Profiles to michael(at)tammina.com Contact ...

Tammina

Agile Engineering Coach

Saint Louis, MO · On-site

... Java Programmer * - 3 years of JUnit, Jenkins/Hudson, Ant/Maven * - Experience coaching and ... Contract to hire after 6 Months Need Citizens Share the Profiles to michael(at)tammina.com Contact ...

Tammina

Agile Engineering Coach

Saint Louis, MO

... as a Java Programmer - 3 years of JUnit, Jenkins/Hudson, Ant/Maven - Experience coaching and ... Contract to hire after 6 Months Need Citizens Share the Profiles to michael(at)tammina.com Contact ...

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How much do contract java developer jobs pay per hour?

As of Jun 18, 2026, the average hourly pay for contract java developer in Saint Louis, MO is $55.12, according to ZipRecruiter salary data. Most workers in this role earn between $47.69 and $61.68 per hour, depending on experience, location, and employer.

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

To thrive as a Contract Java Developer, you need strong Java programming skills, experience with object-oriented design, and a solid understanding of software development lifecycles, typically supported by a relevant degree or certifications. Familiarity with frameworks like Spring, build tools such as Maven or Gradle, and version control systems like Git is commonly required. Excellent problem-solving, adaptability, and clear communication skills help you efficiently integrate with new teams and projects. These abilities ensure you can quickly deliver high-quality, maintainable code that meets client requirements in a dynamic contract environment.

What are some common challenges faced by Contract Java Developers when integrating with existing teams and projects?

Contract Java Developers often need to quickly adapt to unfamiliar codebases and team workflows, which can be challenging given tight project timelines. Effective communication is essential, as they must coordinate with permanent staff, understand project requirements, and align with established coding standards and deployment processes. Many contractors also need to manage multiple projects or clients simultaneously, requiring strong time management skills. Proactively seeking clarity on expectations and leveraging onboarding resources can help ease the integration process.

Is Java outdated in 2026?

Java remains a widely used programming language for contract Java developers in 2026, especially in enterprise applications, Android development, and backend systems. It continues to evolve with regular updates and new features, maintaining its relevance in the software industry.

Is AI replacing Java developers?

AI is automating certain coding tasks and improving software development processes, but it does not replace Java developers. Java developers are needed to design, implement, and maintain complex applications, and their skills in problem-solving and system architecture remain essential. AI tools can assist developers but currently serve as complements rather than replacements in the development workflow.

Which pays more, C++ or Java?

For a Contract Java Developer, salary differences between C++ and Java roles depend on experience, location, and industry demand. Generally, C++ developers may earn higher salaries due to the complexity of systems and performance-critical applications, but Java developers are also well-compensated, especially with expertise in enterprise environments and frameworks like Spring. Both skills are valuable, and compensation varies based on specific job requirements and market conditions.

What are Contract Java Developers?

Contract Java Developers are software professionals who specialize in the Java programming language and are hired on a contract basis, rather than as permanent employees. They typically work for a set period of time or on a specific project, developing, testing, and maintaining Java-based applications according to the client’s requirements. These developers are often brought in to provide specialized expertise, handle workload spikes, or complete short-term projects. Their roles may include writing code, fixing bugs, integrating systems, and ensuring applications meet performance and security standards.

Is Java developer still in demand?

Java developers remain in high demand due to the language's widespread use in enterprise applications, Android development, and backend systems. Skills in frameworks like Spring and experience with cloud platforms can enhance job prospects in this field.

What is the difference between Contract Java Developer vs Contract Software Engineer?

AspectContract Java DeveloperContract Software Engineer
Required CredentialsBachelor's in Computer Science, Java certificationsBachelor's in Computer Science or related, various programming certifications
Work EnvironmentDevelopment teams, client sites, remote optionsDevelopment teams, client sites, remote options
Industry UsageTech, finance, healthcare, e-commerceTech, finance, healthcare, e-commerce
Search & Comparison IntentFocus on Java-specific roles, Java projectsBroader software development roles, multiple languages

Contract Java Developers specialize in Java programming and are often sought for Java-specific projects. Contract Software Engineers have a broader scope, working with multiple programming languages and technologies. Both roles are common in tech industries and share similar work environments, but the Java Developer role is more focused on Java expertise.

What are the most commonly searched types of Java Developer jobs in Saint Louis, MO? The most popular types of Java Developer jobs in Saint Louis, MO are:
What are popular job titles related to Contract Java Developer jobs in Saint Louis, MO? For Contract Java Developer jobs in Saint Louis, MO, the most frequently searched job titles are:
What job categories do people searching Contract Java Developer jobs in Saint Louis, MO look for? The top searched job categories for Contract Java Developer jobs in Saint Louis, MO are:
What cities near Saint Louis, MO are hiring for Contract Java Developer jobs? Cities near Saint Louis, MO with the most Contract Java Developer job openings:
Contract Java Developer jobs near you
Automation Engineer

Automation Engineer

Staffingine LLC

Saint Louis, MO • On-site

Contractor

Posted yesterday

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Job description

Job Title: Automation Engineer
Job Location: Alpharetta, GA or St louis, MO
Job Type: Contract

Job Description:

  1. Experience in test automation using Karate Framework for API and integration testing including test design execution and reporting
    Hands-on experience with TestRail for test case management test planning execution tracking and defect reporting
  2. Exposure to Google Cloud Platform GCP with understanding of cloud based application testing environment validation and CICD integrations
    Ability to integrate automated tests into CICD pipelines and collaborate closely with DevOps and development teams
  3. Seeking a Specialist with 5 to 7 years of experience in Automotive Testing skilled in API Microservices Rest Assured Testing Cloud testing and Selenium Java Testing to drive quality assurance initiatives
  4. Collaborate with cross functional teams to ensure the quality and reliability of automotive software applications Design and implement automated test frameworks using Selenium with Java for UI testing Develop and execute API and microservices test cases using Rest Assured to validate backend services Perform cloud testing to verify application performance and scalability in cloud environments Analyze test results and work closely with development teams to identify and resolve defects Participate in continuous integration and continuous deployment CICD processes to integrate automated tests Maintain and enhance existing test automation suites to improve coverage and efficiency Ensure adherence to industry standards and best practices in automotive software testing

Roles and Responsibilities 

  1. Develop and maintain automated test scripts for API microservices and UI testing using Rest Assured and Selenium Java Execute cloud based testing scenarios to validate application behavior under various conditions
  2. Collaborate with developers architects and other QA engineers to define test strategies and plans Identify document and track defects and work with stakeholders to resolve issues promptly
  3. Participate in code reviews and provide feedback on testability and quality aspects Lead efforts to improve automation frameworks and testing processes within the automotive testing domain
  4. Stay updated with emerging testing tools and technologies relevant to API cloud and UI testing Mentor junior team members and share best practices in test automation and quality assurance

Skills

Mandatory Skills : API/Microservices RestAssured Testing, Appium-Java -Testing, Playwright Java testing, SQL & Database testing, User Acceptance Testing