1

Senior Java Developer C2C Jobs in Wisconsin (NOW HIRING)

WI · On-site

$110 - $140/hr

Develop new features and bug fixes in Java, following existing patterns and team standards * Participate actively in the team's Agile/Scrum process * Document applications (user manuals, processes ...

WI · On-site

$90 - $130/hr

Développer, programmer, tester et assurer la maintenance des applications logicielles et des ... Expertise forte en JAVA 8+ (Reactive Streams, performance, ...) et frameworks associés (Spring et ...

Software Developer - Java

Milwaukee, WI · On-site

$90K - $128K/yr

  • Medical

  • Retirement

  • PTO

Software Developer - Java Pay from $90,000 to $128,000 per year Corporate Headquarters 12575 Uline Drive, Pleasant Prairie, WI 53158 Are you ready to design, innovate and lead in a collaborative ...

Software Developer - Java

Pleasant Prairie, WI · On-site

$90K - $128K/yr

  • Medical

  • Retirement

  • PTO

Software Developer - Java Pay from $90,000 to $128,000 per year Corporate Headquarters 12575 Uline Drive, Pleasant Prairie, WI 53158 Are you ready to design, innovate and lead in a collaborative ...

Software Developer - Java

Pleasant Prairie, WI

$90K - $128K/yr

  • Medical

  • Retirement

  • PTO

Software Developer - Java Pay from $90,000 to $128,000 per year Corporate Headquarters 12575 Uline Drive, Pleasant Prairie, WI 53158 Are you ready to design, innovate and lead in a collaborative ...

Software Developer - Java

Kenosha, WI · On-site

$90K - $128K/yr

  • Medical

  • Retirement

  • PTO

Software Developer - Java Pay from $90,000 to $128,000 per year Corporate Headquarters 12575 Uline Drive, Pleasant Prairie, WI 53158 Are you ready to design, innovate and lead in a collaborative ...

WI · On-site

$40 - $140/hr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

We are seeking a Senior Backend Developer who will design, build, and maintain backend services ... Design, develop, and maintain backend services using Java and Spring Boot. * Build and integrate ...

New

WI · On-site

$79.93 - $125.60/hr

De organisatie zoekt een IT Developer - Senior voor de Agile transformatie van de grootste ... Functieomschrijving Als ervaren Java Developer werk je in een Agile squad met interne en externe ...

New

WI · On-site

$90 - $120/hr

Your Impact As a Senior Developer, you will help shape the technical foundation of Docbyte Vault ... Strong in Java * Experience with REST APIs, databases (MongoDB preferred), CI/CD, Docker * You ...

New

WI · On-site

$83 - $132/hr

  • Medical

  • PTO

We are on the lookout for a Senior Software Engineer to join our Elasticsearch - Distributed ... You have strong skills in core Java and are conversant in the standard library of data structures ...

New

Software Developer (Java/Scala)

Milwaukee, WI · On-site

$56.25 - $71.75/hr

Advanced proficiency in one or more programming languages (Java, Scala, C#, etc.). * A firm understanding of object-oriented design and development practices. * Excellent communication skills to ...

WI · On-site

$130 - $190/hr

  • Medical

  • Dental

  • Vision

  • Retirement

Role: Sr. Staff Software Engineer ( Java Architect) Location: Dallas, TX - (Hybrid role , in-office ... Familiarity with DevOps practices and Infrastructure as Code tools like Terraform or Azure Resource ...

New

Sr. Staff Software Engineer( Java Architect)

Waukesha, WI

$129K - $189K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

Role: Sr. Staff Software Engineer ( Java Architect) Location: Dallas, TX - (Hybrid role , in-office ... Familiarity with DevOps practices and Infrastructure as Code tools like Terraform or Azure Resource ...

Sr. IAM Engineer

Milwaukee, WI · On-site

$110 - $140/hr

SailPoint, Java, security, documentation Job Responsibilities * Lead the design, development, and ... Experience with Agile methodologies/DevOps environment. #J-18808-Ljbffr

New

WI · On-site

$110 - $150/hr

Develops applications (using Java EE and Spring framework), and applies event driven transaction ... Builds automation pipelines by leveraging DevOps concepts and Continuous Integration and Continuous ...

New

WI · On-site

$100 - $130/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

As a senior-level individual contributor, you will navigate a complex microservices environment to ... Strong proficiency in Scala or other JVM languages, such as Java or Kotlin, with a focus on ...

New

Showing results 41-60

Senior Java Developer C2C information

What is a senior Java developer C2C?

A Senior Java Developer C2C is an experienced software engineer who specializes in Java programming and works on a 'Corp-to-Corp' (C2C) basis. This means the developer provides services through their own corporation or business entity, rather than as a direct employee or independent contractor. Senior Java Developers are responsible for designing, developing, and maintaining complex Java applications, leading projects, and mentoring junior developers. C2C arrangements are common in IT contracting, particularly in the United States, and typically require the developer to handle their own business taxes and legal compliance.

What are the key skills and qualifications needed to thrive as a senior Java developer C2C?

To thrive as a Senior Java Developer (C2C), you need expert-level proficiency in Java, object-oriented programming, system architecture, and a solid foundation in computer science, usually supported by a bachelor’s degree or higher. Familiarity with frameworks like Spring, Hibernate, RESTful APIs, version control systems such as Git, and build tools like Maven or Gradle, along with experience in Agile methodologies, is typically required. Strong problem-solving, leadership, and communication skills help you collaborate effectively with cross-functional teams and mentor junior developers. These skills and qualities are crucial for delivering robust, scalable software solutions and ensuring project success in dynamic environments.

What are some common challenges senior Java developers face when working on C2C (Corp-to-Corp) contracts?

Senior Java Developers working on C2C contracts often encounter challenges such as quickly adapting to new project environments, understanding diverse client requirements, and integrating with teams that may have established workflows or legacy systems. Additionally, they need to manage their own business operations, including invoicing and compliance, while maintaining high productivity and technical standards. Effective communication and self-management are essential, as C2C roles may offer less direct supervision compared to traditional employment.

What is the difference between Senior Java Developer C2C vs Java Software Engineer?

AspectSenior Java Developer C2CJava Software Engineer
CredentialsJava certifications, experience in Java SE/EEJava certifications, similar experience
Work EnvironmentContract-based, client-site or remote, project-focusedFull-time, in-house or remote, development team
Industry UsageFreelance/contract roles across industriesPermanent roles in tech companies or enterprises
Search IntentContract Java roles, freelance Java jobsFull-time Java developer positions

While both roles require Java expertise and similar certifications, Senior Java Developer C2C typically involves contract-based, project-specific work often on a freelance basis. Java Software Engineer usually refers to full-time, in-house roles within organizations. The choice depends on whether you're seeking flexible contract work or a permanent position.

What are the most commonly searched types of Java Developer C2C jobs in Wisconsin?

The most popular types of Java Developer C2C jobs in Wisconsin are:

What are popular job titles related to Senior Java Developer C2C jobs in Wisconsin?

For Senior Java Developer C2C jobs in Wisconsin, the most frequently searched job titles are:

What job categories do people searching Senior Java Developer C2C jobs in Wisconsin look for?

The top searched job categories for Senior Java Developer C2C jobs in Wisconsin are:

What cities in Wisconsin are hiring for Senior Java Developer C2C jobs?

Cities in Wisconsin with the most Senior Java Developer C2C job openings:

Infographic showing various Senior Java Developer C2C job openings in Wisconsin as of August 2026, with employment types broken down into 80% Full Time, 6% Part Time, and 14% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution.

$126K - $165K/yr

Full-time

Re-posted 28 days ago


Job description

Company Description

Weather Means Business. WSI is the world's leading provider of weather-driven business solutions that enable enterprises to make better decisions using the most accurate and precise weather data available.

WSI serves some of the world's biggest brands in the aviation, energy, insurance, and media markets, as well as federal and state government agencies. We are proud to be a part of The Weather Company, which focuses entirely on the weather, delivering billions of discrete forecasts per day around the world, through a media portfolio that includes The Weather Channel, weather.com, WSI and Weather Underground. Learn more at www.wsi.com.

We have exceptional opportunities for senior developers with demonstrated achievements in developing Java based products. You'll work with and learn some of the newest and most innovative technologies on the planet. Our teams deal with massive real time data sets and finding solutions for solving these "big data" problems using cloud computing (AWS), Cassandra (No-SQL) and a suite of RESTful services and platforms. If you want the opportunity to work with a small team of very talented developers on cutting-edge projects - we want to talk to you.

We're a focused Scrum shop with a strong emphasis on self-managed teams. Our engineering teams value collaboration and hold the team in high regard. We will foster your career development and allow you to be creative in a fun; results based environment. You'll work on the team that provides the weather data powering many products used by insurance companies across the United States. This data comes from many different sources and formats, and the business needs are constantly evolving. Working on a small, skilled team, you'll provide the code and architecture to meet the business needs. The products you build will save property, and save lives! 

Successful candidates will have a mastery of server-side concurrent programming on the JVM, and experience in GIS or Weather data sets/systems. In addition you'll be highly familiar with HTTP-based data exchange, large-scale, and high-use apps in both Windows and Unix environments. Our teams will benefit greatly from your proficiency in performance testing and tuning services and applications, SQL, and better yet Cassandra. Functional proficiency with AWS, Spring, Unix, JSON, REST, AJAX, and Maven will put you above the crowd.

Job Description
  • Produce working maintainable, fast, scalable Java and Scala services from product requirements and designs using advanced professional expertise of data flow through full systems implementation, exercising, up to and including leading others in selecting methods, techniques and evaluation criteria for obtaining results. Solve business needs with near term product deliverables, longer term vision and evolving current architecture with robust technical solutions
  • Learn quickly and be versatile. Be able to handle both back-end and occasional front-end type of work.
  • Dive into and learn complex problems involving GIS (Global Information Systems) as well as weather data and corresponding scientific algorithms
  • Be a collaborative part of the team, not just a member of a team
  • Determine operating feasibility by evaluating analysis, problem definition, requirements, solution development and proposed solutions, and provide alternative solutions as required.
  • Partner collaboratively with the business and project team to accomplish tasks/milestones/goals.
  • Document and demonstrate solutions by developing documentation, flowcharts, layouts, diagrams, charts, and code comments.
  • Improve operations by conducting systems analysis; recommending changes in policy and procedures.
  • Provide estimates of work effort and impact of projects and tasks, and provide team leadership, as required.
  • Update and distribute job knowledge by studying state-of-the-art development tools, programming techniques and computing equipment.
  • Have fun and help those around you to do the same!
Qualifications
  • Bachelor's Degree in computer science or related field, or its equivalent. 
  • 5 years of related experience in full cycle software development with demonstrated achievements and progressive responsibilities.
  • Knowledge, Skills and Abilities
  • Highly proficient & demonstrated advanced technical level software design, debugging, documentation, and testing skills, requiring application of extensive technical knowledge & skills at the subject matter expert level to complete & document projects
  • Excellent Written/Verbal communication skills
  • Comprehensive knowledge of professional software development process and concepts, with the ability to lead and teach others. 
  • Advanced level proficiency and breadth in required code development in area of specialization. 
  • Developed and demonstrated proficiency to resolve a wide range of moderately complex business problems and opportunities where analysis of data requires evaluation of identifiable factors. 
  • Comprehensive and functional network of senior-level internal/external personnel in own area of expertise. 
  • Demonstrated proficiency and application of business software lifecycle development. 
  • Comprehensive knowledge of Agile methodology. 
  • Ability to communicate and coordinate projects in a team leadership capacity. 


Additional Information

All your information will be kept confidential according to EEO guidelines.