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Java Contract 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 ... and Selenium Java Testing to drive quality assurance initiatives * Collaborate with cross ...

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All JobsJava Contract JobsJava Contract Jobs in Saint Louis, MO

Java Contract information

See Saint Louis, MO salary details

$15

$55

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How much do java contract jobs pay per hour?

As of Aug 7, 2026, the average hourly pay for java contract 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 some common challenges faced by Java contracts and how can they be managed effectively?

Java contractors often work on short-term projects or fill skill gaps in development teams, which can present challenges such as quickly adapting to new codebases and varying team dynamics. To manage these effectively, it’s important to have strong communication skills, a proactive approach to understanding project requirements, and the ability to rapidly learn existing systems. Building rapport with permanent team members and maintaining thorough documentation can also help ease the transition. Staying current with Java frameworks and tools further ensures you can contribute value from day one.

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

To thrive as a Java Contractor, you need strong proficiency in Java programming, experience with object-oriented design, and a solid understanding of software development methodologies, often supported by a relevant degree or certifications like Oracle Certified Professional Java Programmer (OCPJP). Familiarity with development tools such as Eclipse or IntelliJ IDEA, version control systems like Git, and frameworks such as Spring or Hibernate is typically required. Excellent problem-solving, adaptability, and communication skills help you collaborate with diverse teams and quickly respond to project changes. These skills ensure high-quality, maintainable code and successful completion of contract-based software projects.

What is the difference between Java Contract vs Java Developer?

AspectJava ContractJava Developer
CredentialsTypically requires Java certifications, experience in contract rolesRequires Java certifications, degree in computer science or related field
Work EnvironmentProject-based, short-term assignments, flexible hoursFull-time, ongoing employment, structured work hours
Employer & Industry UsageUsed by companies for specific projects, consulting firmsEmployed directly by companies, tech firms, or agencies
Search & Comparison IntentOften compared for contract opportunities, flexibilityCompared for full-time roles, career growth

Java Contract roles are typically project-based, offering short-term assignments with flexible schedules, ideal for those seeking variety or freelance work. Java Developers usually work full-time, with ongoing responsibilities and career development opportunities. Both roles require Java certifications and experience, but differ mainly in employment type and work environment.

What is a Java contract?

A Java contract job is a temporary position where a programmer is hired to work on projects using the Java programming language for a fixed period, rather than as a permanent employee. Contractors are often brought in to fill skill gaps, complete specific projects, or handle increased workloads. These roles can be full-time or part-time and typically last from a few months to over a year, depending on the project's needs. Contractors may work onsite or remotely and are usually paid hourly or by project milestone. Java contract jobs offer flexibility and the opportunity to work with a variety of companies and technologies.
What are the most commonly searched types of Java jobs in Saint Louis, MO? The most popular types of Java jobs in Saint Louis, MO are:
What are popular job titles related to Java Contract jobs in Saint Louis, MO? For Java Contract jobs in Saint Louis, MO, the most frequently searched job titles are:
What job categories do people searching Java Contract jobs in Saint Louis, MO look for? The top searched job categories for Java Contract jobs in Saint Louis, MO are:
What cities near Saint Louis, MO are hiring for Java Contract jobs? Cities near Saint Louis, MO with the most Java Contract job openings:
Java Contract jobs near you
Infographic showing various Java Contract job openings in Saint Louis, MO as of August 2026, with employment types broken down into 1% Internship, 80% Full Time, 3% Part Time, and 16% Contract. Highlights an 83% Physical, 4% Hybrid, and 13% Remote job distribution, with an average salary of $114,656 per year, or $55.1 per hour.

Java/Node.js Engineer Security Remediation & Technical Debt Automation

Krest Global Solutions

Saint Louis, MO

$55 - $60/hr

Contractor

Re-posted 11 days ago

Job description

Job Title: Java/Node.js Engineer – Security Remediation & Technical Debt Automation

Location: NJ or STL (Hybrid)
Employment Type: Contract
Experience Level: 7+ years

Rate : 55-60$/Hr on 1099 / C2C

About the Role

We are seeking a highly skilled Java/Node.js Engineer with expertise in application security remediation, technical debt reduction, and automated vulnerability fixes. This role involves identifying, triaging, and remediating security vulnerabilities across Java, Node.js, Ruby on Rails, and WordPress applications.
You will also drive automated remediation workflows and work with Generative AI tools (e.g., AWS Bedrock) to accelerate secure coding and vulnerability fixes.

This position requires collaboration with InfoSec, QA, DevOps, Architecture, and development teams to continuously improve our security posture.

Key Responsibilities

Vulnerability Remediation & Secure Coding

  • Analyze, triage, and remediate vulnerabilities identified through SAST, DAST, and SCA tools (SonarQube, Veracode, Checkmarx, Snyk, OWASP ZAP).
  • Refactor insecure Java, Node.js, Ruby on Rails, and WordPress codebases to fix issues such as:
    • SQL Injection, XXE, XSS
    • CSRF, SSRF
    • Insecure Deserialization
    • Authentication & session management flaws
    • Path traversal or file upload vulnerabilities
  • Patch and upgrade vulnerable third-party dependencies (Maven, Gradle, npm, Bundler, Composer) and validate remediation results.
  • Harden and secure configurations across:
    • Spring Boot APIs
    • Node.js/Express.js services
    • Ruby on Rails frameworks
    • WordPress environments and plugins
  • Ensure fixes do not impact app functionality by performing regression testing and user flow validation.

Automation & GenAI-Driven Security

  • Integrate security checks and automated remediation into CI/CD pipelines (Jenkins, GitHub Actions).
  • Build or enhance AI-driven security workflows using AWS Bedrock or equivalent GenAI platforms:
    • Auto-generate secure code patches
    • Summarize vulnerability reports
    • Suggest prioritized fixes
    • Provide real-time security recommendations for developers
  • Develop custom scripts to automate scanning, remediation, and validation processes.

Technical Debt & Platform Modernization

  • Identify and fix legacy security issues across Java, Node.js, Rails, and WordPress applications.
  • Modernize outdated components, remove deprecated libraries, and refactor insecure patterns.
  • Harden Docker images, Linux environments, Kubernetes configurations, and AWS cloud setups.

Collaboration & Continuous Improvement

  • Work closely with InfoSec and QA teams to validate fixes, perform rescans, and close vulnerability tickets.
  • Partner with development teams to promote secure coding best practices.
  • Stay current on OWASP Top 10, CWE/SANS 25, CVEs, and emerging security threats across multiple tech stacks.

Required Skills

  • Strong hands-on experience with Core Java, Spring Boot, REST APIs, Tomcat, and secure Java coding.
  • Proficiency in Node.js, Express.js, JavaScript/TypeScript.
  • Exposure to Ruby on Rails and WordPress, with the ability to assist in vulnerability remediation and secure configuration.
  • Strong understanding of application vulnerabilities and mitigation techniques (e.g., XSS, CSRF, SQL Injection).
  • Experience with Veracode, Checkmarx, SonarQube, Snyk, or similar scanning tools.
  • Familiarity with OAuth2/JWT, encryption, secure session management, and API security.
  • Experience with Docker, Kubernetes, Linux hardening, and AWS cloud security.
  • Experience using or integrating Generative AI (AWS Bedrock, CodeWhisperer) in security workflows.
  • Hands-on experience with CI/CD pipelines and automated security integration.

Preferred Qualifications

  • Experience with microservices, API gateways, and cloud-native security.
  • Understanding of OWASP ASVS, threat modeling, and DevSecOps best practices.
  • Experience with automating remediation workflows using GenAI.
  • Certifications: CEH, CSSLP, OSCP, GSSP-Java, or similar.

Soft Skills

  • Strong analytical, debugging, and problem-solving skills.
  • Excellent communication and documentation abilities.
  • Collaborative mindset with the ability to work across security, development, and DevOps teams.
  • Self-driven, proactive, and detail-oriented with a commitment to secure, high-quality code.