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Freelance Junior Java Developer Jobs in Wisconsin

TIER4 GROUP

Sr. Full Stack Developer

Milwaukee, WI · Hybrid

May take on a mentoring role and provide guidance and support to junior technical talent ... NET Core development and/or Java development * 2+ years' professional experience with a JavaScript ...

Kiongroup

Software Engineering Intern

Wauwatosa, WI

$26 - $33/hr

Junior: $21 - $27/Hour * Senior: $23 - $29/Hour * Master's: $26 - $33/Hour Tasks and Qualifications ... Java EE education and training * Basic knowledge of at least 1 operating systems * Hands on ...

New

Kiongroup

Software Engineering Intern

Wauwatosa, WI

$26 - $33/hr

Junior: $21 - $27/Hour * Senior: $23 - $29/Hour * Master's: $26 - $33/Hour Tasks and Qualifications ... Java EE education and training * Basic knowledge of at least 1 operating systems * Hands on ...

New

Exactsciences

Sr. Software Engineer

Madison, WI

$123.40K - $162.70K/yr

... mentor junior team members. This role will routinely make key decisions for the team, be ... They would have very strong competency with Java and be knowledgeable about Spring Boot and Spring ...

Exact Sciences

Sr. Software Engineer

Madison, WI · On-site

$123.40K - $162.70K/yr

... mentor junior team members. This role will routinely make key decisions for the team, be ... They would have very strong competency with Java and be knowledgeable about Spring Boot and Spring ...

Exact Sciences

Sr. Software Engineer

Madison, WI

$123.40K - $162.70K/yr

... mentor junior team members. This role will routinely make key decisions for the team, be ... They would have very strong competency with Java and be knowledgeable about Spring Boot and Spring ...

FIS

Backend Engineer

Milwaukee, WI

$97.94K - $195.66K/yr

Mentor junior team members and contribute to a culture of continuous learning and improvement ... Work with technologies such as Java, Javascript and Typescript, RESTful API integrations ...

Worldpay, Inc.

Backend Engineer

Milwaukee, WI

$97.94K - $195.66K/yr

Mentor junior team members and contribute to a culture of continuous learning and improvement ... Work with technologies such as Java, Javascript and Typescript, RESTful API integrations ...

Gehc

Software Engineer

Waukesha, WI

Strong experience with Java/J2EE, Spring Core, SpringBoot, JPA (e.g. Hibernate) Desired ... Our employees are excited to share their experiences and mentor more junior engineers. Team members ...

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Freelance Junior Java Developer information

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

To thrive as a Freelance Junior Java Developer, you need a solid grasp of Java programming, basic software development principles, and a relevant degree or coursework in computer science. Familiarity with tools like Eclipse or IntelliJ IDEA, version control systems such as Git, and an understanding of basic frameworks like Spring Boot are typically required. Strong problem-solving abilities, effective time management, and clear communication make you stand out when collaborating remotely with clients. These skills and qualities are essential to deliver reliable code, meet project deadlines, and build lasting professional relationships as a freelancer.

What are some common challenges freelance junior Java developers face when starting out, and how can they overcome them?

Freelance junior Java developers often face challenges such as finding consistent projects, adapting quickly to different client codebases, and managing their own schedules and client communications. Building a strong online portfolio and actively networking in developer communities can help attract more clients. Additionally, setting clear expectations with clients and continuously improving technical and soft skills are key to overcoming early hurdles and building a successful freelance career.

What is a Freelance Junior Java Developer?

A Freelance Junior Java Developer is an entry-level programmer who works independently on a contract basis, specializing in Java development. They typically handle coding, debugging, and basic software tasks for clients rather than being employed full-time by a single company. Freelance junior developers often work on smaller projects or assist senior developers, allowing them to gain experience and build their portfolios. This role requires a solid understanding of Java fundamentals and the ability to adapt to different project requirements.

What is the difference between Freelance Junior Java Developer vs Junior Java Developer?

AspectFreelance Junior Java DeveloperJunior Java Developer
Work EnvironmentIndependent, remote or contract-based projectsFull-time employment in a company or organization
CredentialsTypically requires basic Java knowledge, some coding experienceOften requires a degree or certification in computer science or related field
Employer & Industry UsageClients across various industries, project-basedEmployers in tech, finance, or enterprise sectors
Work ScopeLimited to specific projects, flexible hoursPart of a team, involved in ongoing development tasks

In summary, a Freelance Junior Java Developer works independently on short-term projects, often remotely, with flexible hours and minimal formal employment ties. In contrast, a Junior Java Developer is typically employed full-time within a company, working as part of a team on continuous development tasks, often requiring formal education or certifications.

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Freelance Junior Java Developer jobs near you

Role: Sr. ABAP Developer/SAP Senior Application Analyst

Sarian, Inc.

Madison, WI • On-site

$62 - $84/hr

Full-time

Posted 19 days ago

Job description

Role: Sr. ABAP Developer/SAP Senior Application Analyst
Location: Madison, WI
Type: Full Time
Sr. ABAP Developer/SAP Senior Application Analyst will work on business systems design and configuration, as well as upgrades and improvements for assigned technology platforms. As a primary support contact for SAP application end-users, the Senior SAP Application Analyst will work to identify issues that arise in the application area as well as issues that impact other application teams, and work to resolve them. The Senior Application Analyst will perform impact analysis of desired changes, build and test systems changes, and identify areas of improvement associated with platform performance and opportunities to enable business processes and requirements. The Senior Application Analyst will act as a mentor to junior analysts on the team, support questions, and may delegate activities to other analysts.
We are seeking an experienced SAP Developer with strengths in modern S/4HANA development, cloud-based extensibility, or both.
Skills & Experience needed:
  • Deep experience developing in SAP S/4HANA, including ABAP on HANA, object-oriented ABAP, and performance-optimized coding aligned with modern platform standards.
  • Strong hands-on background with CDS views, SQL optimization, and contemporary ABAP development patterns that support scalable, maintainable solutions.
  • Skilled in SAP RAP and Clean Core-aligned extensibility approaches to enable upgrade-safe, cloud-ready enhancements.
  • Proficient in SAP Fiori development, including Fiori Elements, Adapt UI/Extensions, and freestyle applications to support intuitive, user-centric workflows.
  • Experienced in S/4HANA upgrade readiness, including SPAU/SPDD remediation, SAP Notes implementation, and refactoring custom code for long-term compatibility.
  • Practical experience working within RISE with SAP and cloud-based SAP landscapes, supporting Exact Sciences' cloud-forward architecture.
  • Hands-on expertise with SAP Business Technology Platform (BTP), including Cloud Foundry and/or Kyma, to deliver scalable side-by-side extensions.
  • Strong foundation in SAP Integration Suite (CPI), Integration Mesh, and API-based integrations (REST, OData) across hybrid SAP/non-SAP environments.
  • Experience building cloud-native and side-by-side extensions using SAP CAP (Node.js or Java) to support modular, decoupled solution design.
  • Familiarity with event-driven architectures, asynchronous messaging, and API-first design principles that align with Exact Sciences' integration patterns.
  • Proficient with modern SAP development tools such as Eclipse/ADT and aligned with standard development practices.
  • Solid understanding of SAP Data Dictionary concepts and enterprise-grade development methodologies.
  • Working knowledge of the full software development lifecycle (SDLC), with the ability to support configuration, testing, documentation, and cross-functional collaboration.

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