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Contract Java Developer C2C Jobs in Missouri (NOW HIRING)

Java/J2EE developer Sr.

Saint Louis, MO · On-site

$49.50 - $64.25/hr

Louis,MO Duration: 2-3 Years Contract Need GC or USC only Communication: Present ideas assertively, aggressively and not be easily ignored. * Be articulate, persuasive and organized in their ...

Java/J2EE developer Sr.

Saint Louis, MO · On-site

$49.50 - $64.25/hr

Louis,MO Duration: 2-3 Years Contract Need GC or USC only Communication: Present ideas assertively, aggressively and not be easily ignored. * Be articulate, persuasive and organized in their ...

Java/J2EE developer Sr.

Saint Louis, MO · On-site

$49.50 - $64.25/hr

Louis,MO Duration: 2-3 Years Contract Need GC or USC only Communication: Present ideas assertively, aggressively and not be easily ignored. * Be articulate, persuasive and organized in their ...

Java Engineer

Missouri City, MO · On-site

$48.25 - $66.25/hr

Java Engineer Onsite( 5days) O'Fallon, Missouri and NYC,NY C2C All local candidates should be available for in-person interviews. An ideal candidate for this role would have extensive experience in ...

Deep knowledge of Java syntax, object-oriented programming principles, inheritance, polymorphism ... Varsity Tutors does not contract in: Alaska, California, Colorado, Delaware, Hawaii, Maine, New ...

Deep knowledge of Java syntax, object-oriented programming principles, inheritance, polymorphism ... Varsity Tutors does not contract in: Alaska, California, Colorado, Delaware, Hawaii, Maine, New ...

Java Tutor

Columbia, MO · Remote

$40/hr

Deep knowledge of Java syntax, object-oriented programming principles, inheritance, polymorphism ... Varsity Tutors does not contract in: Alaska, California, Colorado, Delaware, Hawaii, Maine, New ...

Java with RCP

Kansas City, MO · On-site

$49.75 - $64.50/hr

Reliable Software helps you address technical resource requirements with contract services. We ... Engineering, Business Administration with emphasis in information systems -Java, JSP, RCP, SWT ...

Lead Java Engineer

Saint Louis, MO · On-site

$140K - $150K/yr

... contract). * Design and implement microservices using Spring Boot, Spring WebFlux, and modern ... Familiar with CI/CD tools and pipelines (DevOps mindset), application lifecycle management tools (e ...

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Contract Java Developer C2C information

What is the difference between Contract Java Developer C2C vs Contract Java Developer W2?

AspectContract Java Developer C2CContract Java Developer W2
Employment TypeIndependent contractor, self-employedEmployee of the staffing agency or company
Tax & BenefitsResponsible for own taxes, no benefits includedTaxes withheld by employer, includes benefits like health insurance
Work EnvironmentTypically remote or client-site, project-basedUsually on-site or hybrid, with more structured hours
Payment StructureInvoicing clients, higher hourly rateSalary or hourly wage, includes payroll taxes

Contract Java Developer C2C and Contract Java Developer W2 differ mainly in employment status, tax responsibilities, and benefits. C2C offers more independence and potentially higher pay but requires managing taxes and benefits independently. W2 provides a more traditional employment setup with benefits and tax withholding. The choice depends on your preference for independence versus stability.

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Infographic showing various Contract Java Developer C2C job openings in Missouri as of June 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution.

$60/hr

Full-time

Posted 2 days ago


Job description

Java Engineer
Mastercard
Onsite( 5days)
Location : O'Fallon, MO
Rate- $60/hr on c2c

Note: We are specifically looking for candidates with real-time, production-grade experience, not just academic or training-based exposure.
Look for backend developers with strong AWS Background.
An ideal candidate for this role would have extensive experience in Java development and be well-versed in cloud-native applications, microservices, and a modern technology stack. Here's a breakdown of the perfect candidate profile:
1. Java Expertise: Has at least 8+ years of hands-on Java development experience, specifically in J2EE (Java 2 Platform, Enterprise Edition). This extensive experience implies that the candidate is proficient in enterprise-grade Java applications, design patterns, and performance optimization.
2. Microservices and REST API Proficiency: Skilled in developing web services, particularly microservices architectures, and REST APIs. This indicates a strong understanding of how to build, scale, and maintain distributed systems effectively.
3. Database and SQL Skills: Proficient in Oracle Database, with expertise in writing complex SQL queries. This level of database knowledge is crucial for data-heavy applications and backend services.
4. Cloud-Native and Platform Experience: Familiarity with cloud platforms, preferably AWS or Azure, as well as experience with deploying cloud-native applications. Knowledge of tools like PCF (Pivotal Cloud Foundry) demonstrates the candidate's ability to work within cloud environments effectively.
5. Modern Software Design Principles: Deep understanding of design principles like SOLID, DRY (Don't Repeat Yourself), and Single Responsibility. This skill shows the candidate's commitment to writing clean, maintainable, and scalable code.
6. Broad Technology Stack Experience: Familiar with a range of modern tools and technologies, including NiFi (data flow management), NATS (messaging system), Kafka (event streaming), Zookeeper (coordination service), Splunk (monitoring), Redis (in-memory data structure store), Cassandra (NoSQL database), and Oracle. The ability to simplify and create common libraries/interfaces for these tools is a plus.
7. Leadership and Collaboration Skills: Experience driving end-to-end development, conducting code reviews, developing test strategies, coordinating with cross-functional teams, and resolving operational issues. This suggests that the candidate can lead and manage projects while also being a key technical contributor.
8. Performance Optimization and Code Reviews: Skilled in performance code reviews and implementing best practices for efficient, scalable code.
A candidate with these qualifications would likely have a background in enterprise or backend development within cloud environments, with experience in leading complex projects and collaborating across teams. This person would fit well into a senior or lead developer role, where they can leverage their deep Java expertise, cloud knowledge, and problem-solving skills to drive impactful projects.