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Freelance Developer Jobs in Wisconsin (NOW HIRING)

Hive-X

WI · On-site

$100 - $130/hr

We are looking for a 5 Senior Java Backend Developers / Integration Engineers to strengthen the ... Engagement: freelance or employee, depending on profile * Duration: long-term reinforcement for the ...

ENTICO ICT

WI · On-site

$80 - $100/hr

Wij zijn op zoek naar een enthousiaste Full Stack Java Developer die verantwoordelijk is voor het ... Competitief salarispakket of aantrekkelijk freelance tarief. * Samenwerking met een ervaren en ...

VERDON

WI · On-site

$94.38 - $157.29/hr

QA Engineer Freelance Courcelles Quality Assurance Engineer - EPC Projects Mission freelance - 6 mois renouvelable Contexte de la mission L'Ingénieur(e) Assurance Qualité Engineering est ...

Wiggli

WI · On-site

$85 - $125/hr

Als Engineer Industriële Automatisering HVAC werk je samen in een team aan het ontwikkelen van toekomstbestendige concepten. Je vertaalt concepten naar principeschema's die het fundament vormen voor ...

Procter & Gamble

Process ManagerRemote

Green Bay, WI

Support engineers, analysts and other Operations team members to resolve escalations through issue ... P&G's freelancer opportunities are for project-based or other short-term engagements that require ...

Procter & Gamble

Process Manager

Green Bay, WI · On-site +1

Support engineers, analysts and other Operations team members to resolve escalations through issue ... P&G's freelancer opportunities are for project-based or other short-term engagements that require ...

Procter & Gamble

Process ManagerOn-Site

Green Bay, WI · On-site

Support engineers, analysts and other Operations team members to resolve escalations through issue ... Successful candidates for freelancer opportunities will not be considered employees of The Procter ...

Euroclear

WI · On-site

$120 - $150/hr

Ready to make an impact? We're seeking a skilled and proactive Lead Expert Software Engineer to ... Please note that this is a permanent position, and we do not offer freelance or contract ...

Euroclear

WI · On-site

$100 - $130/hr

Ready to make an impact? We're seeking a skilled and proactive Senior Expert Engineer to strengthen ... Please note that this is a permanent position, and we do not offer freelance or contract ...

EDGX

WI · On-site

$70 - $110/hr

You work with customers and engineering to translate product specifications into clear customer ... Whether you do it yourself or brief freelancers/interns, you are responsible for the quality ...

Jobgether

WI · On-site

$79 - $111/hr

You'll collaborate with designers, developers, freelance creatives, agencies, and marketing teams in a fully remote environment. You'll also work hands‑on with AI‑powered creative tools and ...

RemoteLeads

WI · On-site

$120 - $180/hr

Freelance / Contrat (selon le projet) Langues : Anglais obligatoire - Français souhaité ... Diplôme de niveau Bachelor * Certification RHCE (Red Hat Certified Engineer) Compétences ...

ENTICO ICT

WI · On-site

$90 - $130/hr

Uitvoeren van technische analyses, debugging en reverse engineering op bestaande toepassingen ... opdracht: consultancy / freelance mogelijk Ben jij een Technical Analyst met een sterke Java ...

Euroclear

WI · On-site

$90 - $120/hr

Ready to make an impact? We're seeking a skilled and proactive Expert Engineer eager to broaden ... Please note that this is a permanent position, and we do not offer freelance or contract ...

Transperfect

Desktop Publisher

Milwaukee, WI · On-site

You will be a part of a team of full-time and freelance graphic designers/typesetters. Through a ... Act as a backup for engineer Qualifications * Bachelor's Degree from a 4-year college or university

DPD (Belgium) NV/SA

WI · On-site

$70 - $90/hr

Voorkeur voor loondienst, freelance is ook mogelijk (op basis van project). Wat bieden wij? * Axians maakt deel uit van de sterke groep VINCI Energies. * Teamwerk, organisatiebetrokkenheid en ...

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Freelance Developer information

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How much do freelance developer jobs pay per hour?

As of Aug 24, 2026, the average hourly pay for freelance developer in Wisconsin is $23.18, according to ZipRecruiter salary data. Most workers in this role earn between $18.94 and $18.94 per hour, depending on experience, location, and employer.

What is a freelance developer?

Freelance developers are self-employed professionals who offer software development services to clients on a project or contract basis, rather than working as permanent employees. They may specialize in areas such as web development, mobile app development, or software engineering. Freelance developers typically manage their own schedules, find their own clients, and are responsible for handling multiple aspects of their business, including invoicing and project management. This career path offers flexibility and the opportunity to work on diverse projects, but also requires strong self-motivation and business skills.

What does a freelance developer do?

A freelance developer performs software programming and web development duties for a client or clients on a contract basis. These responsibilities may include helping build a website, working on design or user experience functionality, and developing code. A freelance developer often works as part of a larger team of developers, programmers, and engineers on a specific project. The qualifications you need for this position include a bachelor’s degree in computer science or a related field, technical skills, and knowledge of one or more programming languages.

What are the key skills and qualifications needed to thrive as a freelance developer, and why are they important?

To thrive as a Freelance Developer, you need strong programming skills, a solid portfolio, and proficiency in relevant languages such as JavaScript, Python, or Java. Familiarity with version control systems (like Git), cloud platforms, and project management tools is typically required, along with certifications in specific technologies as a plus. Excellent communication, self-motivation, and time management set top freelancers apart by ensuring reliable project delivery and client satisfaction. These skills are vital for attracting clients, managing multiple projects, and maintaining a successful independent business.

How do freelance developers typically find and manage multiple clients while maintaining consistent project quality?

Freelance developers often rely on a mix of online platforms, personal networks, and referrals to secure new clients. Managing multiple projects requires strong organizational skills, effective communication, and the ability to set clear expectations with each client. Many freelancers use project management tools to track deadlines and deliverables, ensuring that each client receives consistent quality. Balancing workloads and prioritizing tasks are common challenges, but successful freelancers establish routines and boundaries to maintain high standards across all engagements.

What is the difference between Freelance Developer vs Web Developer?

AspectFreelance DeveloperWeb Developer
CredentialsTypically self-taught or with coding bootcamps; no formal certification requiredOften holds a degree in computer science or related field; certifications like HTML, CSS, JavaScript are common
Work EnvironmentWorks independently, often remotely, with multiple clientsWorks for a company or as a full-time employee, usually in an office or remote
Employer & Industry UsageClients include startups, small businesses, or individuals; freelance platforms are commonEmployers include tech firms, agencies, or corporations; industry standard role

In summary, Freelance Developers operate independently, often with diverse clients and flexible schedules, while Web Developers are typically employed by organizations or agencies, focusing on building websites within a structured environment.

More about Freelance Developer jobs

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

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For Freelance Developer jobs in Wisconsin, the most frequently searched job titles are:

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The top searched job categories for Freelance Developer jobs in Wisconsin are:

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Cities in Wisconsin with the most Freelance Developer job openings:

Freelance Developer jobs near you
Infographic showing various Freelance Developer job openings in Wisconsin as of August 2026, with employment types broken down into 83% Full Time, 4% Part Time, and 13% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution, with an average salary of $48,219 per year, or $23.2 per hour.

Senior Java Backend Developer / Integration Engineer

Hive-X

WI • On-site

$100 - $130/hr

Other

Posted 5 days ago

Job description

We are looking for a 5 Senior Java Backend Developers / Integration Engineers to strengthen the team working in pharma sector, a strategic integration platform in the healthcare ecosystem. This role is ideal for someone who enjoys building reliable backend services, secure APIs, event-driven integrations, and cloud-connected data flows in a modern Java environment.

Mission

You will join a team responsible for the evolution of the solution, a multi-module platform built around integration, interoperability, security, and data exchange.

Responsibilities
  • Designing and implementing backend features in a modern Java stack
  • Building and maintaining secure APIs and gateway flows
  • Developing integrations with external systems and healthcare partners
  • Working on event-driven communication and asynchronous processing
  • Contributing to data persistence, migration, and operational reliability
  • Supporting cloud-based data exchange patterns and AWS-connected services
  • Ensuring code quality through unit and integration testing
  • Collaborating closely with analysts, architects, and product stakeholders
Tech Environment

The current stack includes:

  • Spring Boot 4
  • Spring Cloud Gateway
  • Spring WebFlux
  • Spring Security
  • Spring Data JPA
  • MariaDB
  • Flyway
  • Redis
  • JWT / OAuth2 Resource Server
  • AWS SDK with S3 , Glue , Athena
  • OpenAPI / Springdoc
  • Jackson
  • Parquet / Hadoop
  • Maven
  • JUnit 5 / Mockito
Qualifications
  • Strong experience in backend development with Java and Spring
  • Solid knowledge of API design, security, and system integration
  • Experience with relational databases such as MariaDB or MySQL
  • Experience with messaging platforms such as Kafka
  • Familiarity with cloud environments, ideally AWS
  • Good understanding of authentication and authorization mechanisms such as JWT and OAuth2
  • A quality-driven mindset with attention to testing, maintainability, and production reliability
  • The ability to work autonomously while collaborating effectively with a broader team
Nice to Have
  • Experience with Spring Cloud Gateway or API gateway patterns
  • Experience with Redis
  • Exposure to healthcare, interoperability, or regulated environments
  • Experience with data pipelines or analytical storage flows using S3 / Athena / Glue
  • Familiarity with hexagonal architecture or domain-driven design principles
Benefits
  • Strategic project with real business and integration impact
  • Modern Java and Spring ecosystem
  • Combination of backend engineering, integration, security, and cloud topics
  • Collaborative team environment
  • Opportunity to contribute to a platform used in a sensitive and meaningful domain
Practical Information
  • Location: Belgium / hybrid possible
  • Engagement: freelance or employee, depending on profile
  • Duration: long-term reinforcement for the team
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