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Java Contract Jobs in Wisconsin (NOW HIRING)

Keystone Consulting, Inc

Java Developer III

Madison, WI · On-site

$69/hr

Contract Duration: 6/30/2027, with possibility of extension. Onsite or Remote: Candidates MUST be ... Strong proficiency in Java, Spring Framework (Spring Boot), Hibernate/JPA, Message queuing, and ...

IO Datasphere

Java Developer

Madison, WI · On-site

$51.50 - $66.50/hr

We are an approved vendor on contract to provide software development and IT staff augmentation ... Our client is looking for a Java Developer with strong hands-on expertise in Java, Spring Boot ...

LRS

Java Developer

Madison, WI · On-site

$55 - $65/hr

Codeworks, an LRS company, is seeking a Senior Java Full Stack Developer for a contract role. In this role, you will contribute to the design, development, and support of scalable, secure, and high ...

Sonoma Consulting Inc.

Java Developer

Waukesha, WI

$51 - $66/hr

Qualifications Long term or contract to hire Application Development (Java/JEE, C++, scripting, and databases) Maintaining Design Specifications in compliance with GEHC's Quality Management System ...

Varsity Tutors

Java Tutor

Milwaukee, WI · Remote

$18 - $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 ...

Varsity Tutors

Java Tutor

Madison, WI · Remote

$18 - $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 ...

Dellfor Technologies

Java Architect

Milwaukee, WI · On-site

$60K/yr

Java EE framework and system development * Experience with use cases, process flows, and UML ... Job Type: Contract Salary: $60,000.00 /year Required education: * Bachelor's Required experience:

Luminoustec LLC

Java Developer

Milwaukee, WI

$50.25 - $65/hr

Contract to Hire (6 months) Location: Menominee Falls, Wisconsin What we look for here are the ... JAVA, SQL and JQuery/AJAX 3. Demonstrated experience showing the following: a. Ability to create ...

Luminoustec LLC

Java Developer

Milwaukee, WI · On-site

$50.25 - $65/hr

Contract to Hire (6 months) Location: Menominee Falls, Wisconsin What we look for here are the ... JAVA, SQL and JQuery/AJAX 3. Demonstrated experience showing the following: a. Ability to create ...

iTech US, Inc.

Windchill Developer

Milwaukee, WI · On-site

Contract Role Descriptions: Experience in Developing, configuring, Customizing and Integrating various Windchill modules ( PDMLink, ProjectLink, MPMLink) using Java and Windchill APIs Gathering and ...

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Java Contract information

What are some common challenges faced by Java contractors 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 Contractor, 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 job?

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 Wisconsin? The most popular types of Java jobs in Wisconsin are:
What are popular job titles related to Java Contract jobs in Wisconsin? For Java Contract jobs in Wisconsin, the most frequently searched job titles are:
What job categories do people searching Java Contract jobs in Wisconsin look for? The top searched job categories for Java Contract jobs in Wisconsin are:
What cities in Wisconsin are hiring for Java Contract jobs? Cities in Wisconsin with the most Java Contract job openings:
Java Contract jobs near you
Infographic showing various Java Contract job openings in Wisconsin as of July 2026, with employment types broken down into 35% Full Time, and 65% Contract. Highlights an 100% In-person job distribution.

Java Developer III

Keystone Consulting, Inc

Madison, WI • On-site

$69/hr

Full-time

Medical, Dental, Life, Retirement

This job post has expired today. Applications are no longer accepted.

Job description


We are seeking a highly skilled and experienced Senior Java Developer with strong hands-on expertise in Java, Spring Boot, Messaging Queues, Caching and Angular to join our client's dynamic team. The ideal candidate will develop, and maintain robust, scalable, and high-performance applications seamlessly integrating Java-based backend systems with Angular-based front-ends. This role requires a proactive problem solver who thrives in a collaborative, fast-paced environment.
Key Responsibilities:
  • Develop and maintain Java-based backend applications, ensuring high performance and scalability.
  • Develop and maintain Angular-based front-end user interfaces with a focus on responsiveness, usability, and ADA/WCAG compliance.
  • Collaborate with cross-functional teams, including business analysts, and APM/QA engineers, to gather and implement requirements.
  • Create and maintain RESTful APIs for seamless integration between frontend and backend systems.
  • Troubleshoot and resolve technical issues, ensuring system reliability and robustness.
  • Stay up to date with industry trends, emerging technologies, and best practices in Java and Angular development.
  • Have good experience doing code reviews and contribute to code quality and standards to ensure high-quality product delivery.
  • Participate in the full software development lifecycle, including requirements gathering, design, coding, testing, and deployment.

Additional Information:
Interview Process: IN PERSON INTERVIEWS ARE REQUIRED FOR BOTH FIRST AND SECOND ROUND.
Contract Duration: 6/30/2027, with possibility of extension.
Onsite or Remote: Candidates MUST be local to Madison or near the Madison area, or willing to relocate to Madison prior to starting the role. Local candidates strongly preferred. The hired candidate can work 100% remote from within the Madison area but must be available to come into the office if needed.
Requirements
Required Skills:
  • Strong proficiency in Java, Spring Framework (Spring Boot), Hibernate/JPA, Message queuing, and caching.
  • Advanced skills in Angular (Angular 2+ required), Typescript, HTML5, and CSS3.
  • Experience designing, creating, and documenting RESTful API using Spring Boot and OpenAPI.
  • Practical knowledge of, and experience with, various middleware platforms like Apache Kafka, Redis, and BOOMI.
  • Familiarity with CI/CD pipelines, deployment automation, and dynamic environment configuration.
  • Experience developing wire frames and mock-ups as a tool to communicate design concepts with stakeholders.
  • Strong knowledge of relational databases.
  • Familiarity with cloud platforms like AWS, Azure, Google Cloud.
  • Excellent problem-solving and analytical skills.
  • Strong verbal and written communication skills.
  • Proven ability to work both independently and collaboratively in a team environment.
  • Knowledge of containerization and orchestration tools like Docker and Kubernetes.
  • Familiarity with Agile/Scrum, Iterative, and waterfall development methodologies.

Nice to Have Skills:
  • Dell Boomi, Dynatrace, Microsoft Azure Devops

Benefits
Hourly rate for Corp to Corp/1099: $69.00
Hourly rate for W2: $50.00
Full-Time W2 employees may receive the following benefits:
  • Health and Dental Insurance
  • Life Insurance
  • Short/Long Term Disability Insurance
  • Simple IRA
  • Referral Bonus
  • Employee Assistance Program

Keystone Consulting, Inc. is an equal opportunity employer and is following Wisconsin's Contract Compliance law. U.S. Citizens and those authorized to work in the U.S. are encouraged to apply. We are unable to sponsor at this time.
Keystone Consulting, Inc. participates in E-Verify. For more information, please click the following links:
E-Verify Participation
Right to Work
Derecho a Trabajar
WI Contract Compliance Law

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