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Senior Java Developer C2C Jobs in Wisconsin (NOW HIRING)

Deloitte

Senior Automation Engineer

Milwaukee, WI · Hybrid

$102K - $134K/yr

Collaborate closely with Java developers, Mainframe engineers, product managers, and project ... As an experienced Senior Automation Engineer ,you will have the ability to share new ideas and ...

Uline

Senior Software Engineer

Pleasant Prairie, WI

$118K - $156K/yr

Senior Software Engineer Corporate Headquarters 12575 Uline Drive, Pleasant Prairie, WI 53158 Are ... Build and secure scalable cloud-native applications using Java and Spring Boot. * Enhance system ...

ULINE

Senior Software Engineer

Milwaukee, WI · On-site

$120K - $159K/yr

Senior Software Engineer Corporate Headquarters 12575 Uline Drive, Pleasant Prairie, WI 53158 Are ... Build and secure scalable cloud-native applications using Java and Spring Boot. * Enhance system ...

Uline

Senior Software Engineer

Pleasant Prairie, WI

$118K - $156K/yr

Senior Software Engineer Corporate Headquarters 12575 Uline Drive, Pleasant Prairie, WI 53158 Are ... Build and secure scalable cloud-native applications using Java and Spring Boot. * Enhance system ...

ULINE

Senior Software Engineer

Pleasant Prairie, WI

$118K - $156K/yr

Senior Software Engineer Corporate Headquarters 12575 Uline Drive, Pleasant Prairie, WI 53158 Are ... Build and secure scalable cloud-native applications using Java and Spring Boot. * Enhance system ...

ULINE

Senior Software Engineer

Pleasant Prairie, WI · On-site

$118K - $156K/yr

Senior Software Engineer Corporate Headquarters 12575 Uline Drive, Pleasant Prairie, WI 53158 Are ... Build and secure scalable cloud-native applications using Java and Spring Boot. * Enhance system ...

ULINE

Senior Software Engineer

Kenosha, WI

$119K - $157K/yr

Senior Software Engineer Corporate Headquarters 12575 Uline Drive, Pleasant Prairie, WI 53158 Are ... Build and secure scalable cloud-native applications using Java and Spring Boot. * Enhance system ...

TIER4 GROUP

Sr. Full Stack Developer

Milwaukee, WI · Hybrid

Title: Sr Full Stack Developer Location: Milwaukee, WI preferred, willing to consider remote talent ... NET Core development and/or Java development * 2+ years' professional experience with a JavaScript ...

MARS IT

Senior Software Engineer -API

Milwaukee, WI · On-site

$120K - $159K/yr

MARS Solutions Group is looking for an experienced Senior Software Engineer . Our client is an ... API Development (REST / OpenAPI), Java or Node.js/TypeScript, Internal Developer Tooling / Platform ...

Acrisure

Senior AI Engineer

Stevens Point, WI

$101K - $139K/yr

Senior AI Engineer Austin, TX (Onsite 4 days per week) Note ... This is a full-time role and we do not offer C2C or C2H employment and are not able to sponsor ...

Genesis10

Software Developer - Remote

Milwaukee, WI · On-site

$50K - $60K/yr

Following training in technologies including Java, Spring, HTML, and React, you will work for up to ... Senior Engineers in a hands-on environment Gain two years of client project experience as a Dev10 ...

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Senior Java Developer C2C information

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 key skills and qualifications needed to thrive as a Senior Java Developer (C2C), and why are they important?

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 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 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:
Senior Java Developer C2C jobs near you
Infographic showing various Senior Java Developer C2C job openings in Wisconsin as of July 2026, with employment types broken down into 37% Full Time, and 63% Contract. Highlights an 100% In-person job distribution.
Senior Android Application Developer

Senior Android Application Developer

Johnson Health Tech North America Inc

Cottage Grove, WI • On-site

$55 - $69.50/hr

Other

Medical, Dental, Life, Retirement, PTO

Re-posted 2 hours ago

Johnson Health Tech rating

8.1

Company rating: 8.1 out of 10

Based on 5 frontline employees who took The Breakroom Quiz

129th of 427 rated machine equipment manufacturers

Job description

Description


Position Overview:

Under the direction of the Sr. Director of Electrical Engineering, the Senior Android Developer will lead the development of native Android applications that integrate seamlessly with our fitness equipment, enhance customer engagement, and support our retail and e-commerce platforms. This role is ideal for someone passionate about fitness, mobile innovation, and creating intuitive digital experiences that motivate users to reach their wellness goals.


Responsibilities:

Design, develop, and maintain native Android applications for fitness tracking, equipment integration, and retail engagement.

Collaborate with cross-functional teams including product, design, and hardware engineering to deliver cohesive user experiences.

Integrate with fitness APIs (e.g., Google Fit, Health Connect), Bluetooth-enabled fitness equipment, and IoT platforms.

Optimize app performance across a wide range of Android devices and screen sizes.

Ensure secure handling of user data, especially health and fitness metrics.

Lead code reviews, mentor junior developers, and contribute to architectural decisions.

Stay up-to-date with Android development trends and fitness technology innovations.

Requirements


Education:

Bachelor's or Master's degree in Computer Science, Engineering, or related field.


Experience:

7+ years of experience in native Android development using Kotlin and Java.

Strong knowledge of Android SDK, Jetpack libraries, and MVVM architecture.

Familiarity with RESTful APIs, third-party SDKs, and Google Play Store deployment.

Excellent communication and problem-solving skills.


Benefits:

We offer an excellent compensation package and team-oriented work environment with growth opportunities. Some of our outstanding benefits include:

Health & Dental Insurance

Company paid Life Insurance

401(k)

Paid Time Off benefits

Product discounts

Wellness programs



 Equal Opportunity Employer, including Veterans and Individuals with Disabilities 

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