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Online Java Developer C2C Jobs in Appleton, WI (NOW HIRING)

Online Java Developer C2C information

See Appleton, WI salary details

$15

$55

$75

How much do online java developer c2c jobs pay per hour?

As of Jul 9, 2026, the average hourly pay for online java developer c2c in Appleton, WI is $55.32, according to ZipRecruiter salary data. Most workers in this role earn between $47.84 and $61.92 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as an Online Java Developer C2C, and why are they important?

To thrive as an Online Java Developer C2C, you need strong Java programming skills, experience with object-oriented design, and typically a bachelor's degree in computer science or a related field. Familiarity with frameworks like Spring, build tools such as Maven or Gradle, source control systems like Git, and cloud platforms such as AWS is highly valued, along with relevant Java certifications. Excellent problem-solving abilities, self-motivation, and effective remote communication skills set standout candidates apart. These competencies are crucial for delivering robust software solutions efficiently while collaborating remotely in a contract-based environment.

What is an Online Java Developer C2C?

An Online Java Developer C2C is a software developer who specializes in building applications using the Java programming language and works remotely under a Corp-to-Corp (C2C) contract. This means the developer is usually engaged through their own corporation or a third-party agency, rather than as a direct employee. C2C arrangements are common for contract roles in the tech industry, especially for remote or freelance projects. Java developers in these roles are responsible for coding, testing, and maintaining Java applications, often collaborating with distributed teams.

What is the difference between Online Java Developer C2C vs Online Java Developer?

AspectOnline Java Developer C2COnline Java Developer
Work ArrangementContract-to-Contract (C2C) with staffing agencies or clientsDirect employment or freelance projects
CredentialsTypically requires Java certifications, relevant experienceSame as C2C, often with additional company-specific requirements
Work EnvironmentRemote, project-based, client-specificRemote or on-site, depending on employer
Industry UsageCommon in consulting, staffing, and freelance platformsWidespread across industries and companies

Online Java Developer C2C roles are contract-based, often through staffing agencies, offering flexibility but less job security. In contrast, Online Java Developer positions may be direct hires or freelance roles, providing different employment benefits. Both roles require Java expertise and similar credentials, but their work arrangements and industry usage differ.

What are some common challenges Online Java Developers face when working on a C2C (Corp-to-Corp) basis?

Online Java Developers working on a C2C basis often encounter challenges such as managing client expectations across different projects, ensuring timely communication in a fully remote setup, and adapting quickly to varying codebases and team practices. They must also stay updated with the latest Java frameworks and tools, since each client may require different technical stacks. Additionally, balancing multiple clients or contracts requires strong time management and organizational skills to deliver quality work on schedule.
What are the most commonly searched types of Java Developer C2C jobs in Appleton, WI? The most popular types of Java Developer C2C jobs in Appleton, WI are:
What job categories do people searching Online Java Developer C2C jobs in Appleton, WI look for? The top searched job categories for Online Java Developer C2C jobs in Appleton, WI are:
Lead Data Scientist (Artificial Intelligence/Machine Learning)

Lead Data Scientist (Artificial Intelligence/Machine Learning)

US Department of the Treasury

Green Bay, WI • On-site

$125K/yr

Other

Posted 8 days ago


U.S. Department Of The Treasury rating

8.2

Company rating: 8.2 out of 10

Based on 13 frontline employees who took The Breakroom Quiz

229th of 675 rated public administrative organizations


Job description

WHAT IS INFORMATION TECHNOLOGY ?
A description of the business units can be found at: https://www.jobs.irs.gov/about/who/business-divisions
  • Position(s) are to be filled in following area(s):
    • IT - Taxpayer Services and Online Accounts
  • Consider each location carefully when applying. If you are selected for a location, that location will become your official post of duty.
REVIEW THE ADDITIONAL INFORMATION BELOW FOR FURTHER DETAILSQualifications:

Federal experience is not required. Experience may have been gained in the public sector, private sector or through Volunteer Service. One year of experience refers to full-time work; part-timework is considered on a prorated basis. To ensure full credit for your work experience, please indicate dates of employment by month/day/year, and indicate number of hours worked per week, on your resume.
You must meet the following requirements by the closing date of this announcement.
BASIC REQUIREMENTS All GRADES: EDUCATION:
You must have a bachelor's or higher degree in mathematics, statistics, computer science, data science or other field directly related to the position. The degree must be in a major field of study (at least at the baccalaureate level) that is appropriate for the position.
OR
COMBINATION OF EDUCATION AND EXPERIENCE: A combination of education and experience that includes courses equivalent to a major field of study (30 semester hours) as shown in the paragraph above, plus additional education or appropriate experience.
SPECIALIZED EXPERIENCE GRADE 14: In addition to the basic requirements, you must have one (1) year of specialized experience at a level of difficulty and responsibility equivalent to the GS-13 grade level in the Federal service. Specialized experience for this position includes:

  • Designing, developing, integrating, testing, and supporting conversational AI solutions, virtual assistants, chatbots, digital messaging platforms, voice automation, interactive voice response (IVR) platforms, or generative AI-enabled customer engagement solutions in a production environment.
  • Developing and optimizing natural language understanding (NLU), natural language processing (NLP), speech recognition, intent classification, entity recognition, conversational workflows, or automated self-service solutions supporting customer interactions across voice and digital channels.
  • Designing, testing, implementing, and refining prompt engineering strategies, generative AI workflows, large language model (LLM) integrations, and AI-assisted customer engagement capabilities to improve automation, containment, customer experience, and operational outcomes.
  • Integrating conversational AI, generative AI, voice, chat, messaging, or digital engagement platforms with enterprise applications, APIs, backend systems, authentication services, customer data platforms, or knowledge management solutions.
  • Demonstrating subject matter expert (SME)-level proficiency in at least one modern programming language such as Java or Python, including development of backend services, automation, integrations, data processing pipelines, or conversational application logic.
  • Analyzing customer interaction data, conversation transcripts, chat sessions, operational metrics, and user behavior to identify trends, improve AI performance, evaluate model effectiveness, and enhance customer experience outcomes.
  • Developing, querying, and analyzing large datasets using cloud-based analytics platforms and data warehouses to support AI model evaluation, operational reporting, and business decision-making.
  • Troubleshooting and resolving complex system integration, application reliability, authentication, speech processing, conversational AI, generative AI, digital engagement, or performance issues across interconnected platforms.
  • Applying DevSecOps, CI/CD pipelines, automated testing, version control, and agile software development practices in enterprise environments.
  • Collaborating with business stakeholders, architects, engineers, cybersecurity personnel, data scientists, and operations teams to translate business requirements into AI-enabled technical solutions.

AND
You must also meet the following requirement(s):

  • PERFORMANCE RATING: Current federal employees must have at least a fully successful or equivalent performance rating to receive consideration.
  • TIME AFTER COMPETITIVE APPOINTMENT (TACA): By the closing date (or if this is an open continuous announcement, by the cut-off date) specified in this job announcement, current civilian employees must have completed at least 90 days of federal civilian service since their latest non-temporary appointment from a competitive referral certificate, known as time after competitive appointment. For this requirement, a competitive appointment is one where you applied to and were appointed from an announcement open to "All US Citizens"
  • TIME IN GRADE (TIG): Federal employees must meet time-in-grade requirements. For positions above the GS-05,applicants must meet applicable time-in-grade requirements to be considered eligible. One year (52 weeks) at the next lower grade level is required to meet the time-in-grade requirements for the grade you are applying for. For positions at the GS-05, you cannot advance to the GS-05 if you have held a GS-02 in the past 52 weeks. There is no TIG restriction for GS-02, 03, or 04 positions.


For more information on qualifications please refer to OPM's Qualifications Standards.

Education:A college or university degree generally must be from an accredited (or pre-accredited) college or university recognized by the U.S. Department of Education. For a list of schools which meet these criteria, please refer to Department of Education Accreditation page.
FOREIGN EDUCATION: Education completed in foreign colleges or universities may be used to meet the requirements. You must show proof the education credentials have been deemed to be at least equivalent to that gained in conventional U.S. education program. It is your responsibility to provide such evidence when applying. Click here (Section 3, Explanation of Terms) or here for Foreign Education Credentialing instructions.
We recommend choosing an evaluator from a member organization of one of the following national associations of credential evaluation services: National Association of Credential Evaluation Services (NACES) or Association of International Credentials Evaluators (AICE).Employment Type: OTHER

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