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Software Developer Contractor Jobs in Madison, WI

WPS Health Solutions

Senior Java Developer

Madison, WI · On-site

$100K - $130K/yr

This Sr Java Developer supports the organization's broader goal of remaining a leader among Medicare contractors by ensuring a high quality, secure, and performant provider experience that reinforces ...

WPS

Senior Java Developer

Madison, WI · On-site +1

$100K - $130K/yr

This Sr Java Developer supports the organization's broader goal of remaining a leader among Medicare contractors by ensuring a high quality, secure, and performant provider experience that reinforces ...

Resource Innovations

Energy Engineer

Madison, WI · On-site +1

... software platform will be provided. * Present and discuss findings with customers, contractors ... Develop and review engineering calculations to quantify energy and cost savings using spreadsheets ...

Resource Innovations

Energy Engineer

Madison, WI · On-site +1

... software platform will be provided. * Present and discuss findings with customers, contractors ... Develop and review engineering calculations to quantify energy and cost savings using spreadsheets ...

Resource Innovations

Energy Engineer

Madison, WI · Remote

... software platform will be provided. * Present and discuss findings with customers, contractors ... Develop and review engineering calculations to quantify energy and cost savings using spreadsheets ...

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All JobsSoftware Developer Contractor JobsSoftware Developer Contractor Jobs in Madison, WI

Software Developer Contractor information

See Madison, WI salary details

$48.4K

$112.7K

$167.3K

How much do software developer contractor jobs pay per year?

As of Jul 28, 2026, the average yearly pay for software developer contractor in Madison, WI is $112,698.00, according to ZipRecruiter salary data. Most workers in this role earn between $90,700.00 and $131,000.00 per year, depending on experience, location, and employer.

What are Software Developer Contractors?

Software Developer Contractors are professionals hired on a temporary or project basis to design, develop, and maintain software applications for clients or companies. Unlike full-time employees, contractors typically work under a contract for a specific period or for the duration of a project. They may work independently, through agencies, or as part of a consulting firm, and often have specialized skills to meet specific project needs. This arrangement offers flexibility for both the developer and the employer, allowing organizations to scale their technical resources as needed.

What is the difference between Software Developer Contractor vs Software Developer Employee?

AspectSoftware Developer ContractorSoftware Developer Employee
CredentialsTypically requires a relevant degree and technical skills; certifications optionalSame as contractor, often with additional company-specific training
Work EnvironmentContract-based, often remote or on-site for short-term projectsFull-time, usually on-site or hybrid
Employer & Industry UsageCommon in tech firms, startups, consulting agenciesStandard in large corporations, tech companies, and organizations

Software Developer Contractors work on short-term projects, often remotely, with flexible arrangements, while Software Developer Employees are full-time staff with ongoing responsibilities and benefits. Both roles require similar skills and credentials but differ mainly in employment status and work setup.

What are the key skills and qualifications needed to thrive as a Software Developer Contractor, and why are they important?

To excel as a Software Developer Contractor, you need strong programming abilities, problem-solving skills, and a solid understanding of software development methodologies, often backed by a relevant degree or equivalent experience. Familiarity with version control systems (like Git), cloud platforms, and proficiency in languages such as Python, Java, or JavaScript are commonly required, along with certifications like AWS Certified Developer or Microsoft Certified: Azure Developer. Excellent communication, time management, and adaptability set top contractors apart, enabling them to quickly integrate with diverse teams and projects. These skills are essential for delivering high-quality, timely solutions in dynamic and varied client environments.

What are some common challenges software developer contractors face when integrating with existing teams?

Software developer contractors often join projects mid-stream and must quickly adapt to unfamiliar codebases, workflows, and team dynamics. A common challenge is building rapport with full-time staff and understanding company-specific coding standards or tools. Contractors are expected to be proactive in communicating, asking questions, and clarifying requirements to ensure smooth collaboration. Being flexible and open to feedback helps contractors deliver quality work while navigating these initial hurdles.
Software Developer Contractor jobs near you
Infographic showing various Software Developer Contractor job openings in Madison, WI as of July 2026, with employment types broken down into 100% Full Time. Highlights an 83% In-person, and 17% Remote job distribution, with an average salary of $112,698 per year, or $54.2 per hour.

Leo Cancer Care: Senior Software Engineer - Interoperability

Leo Cancer Care

Middleton, WI • Hybrid

$125K - $165K/yr

Full-time

Posted 7 days ago

Job description

Position Title: Senior Software Engineer - Interoperability

Reports to: Senior Manager Global Software Engineering

FT/PT : Full-time

Location: US Office, Hybrid- Office 3 days a week

Position Summary: Join our dynamic engineering team to help develop our revolutionary radiotherapy products for upright therapy. This role sits at the intersection of medical device software engineering and clinical systems integration, with a primary focus on DICOM-RT interoperability between our treatment system and the broader clinical ecosystem - including Oncology Information Systems (OIS), PACS servers, and other networked medical devices.

The ideal candidate brings deep hands-on experience with DICOM-RT standards, network-level system integration, and medical device software development under IEC 62304. You will play a key technical leadership role in defining and implementing the interoperability architecture that connects our treatment delivery system to the clinical workflow, working closely with partners, clinical customers, and internal cross-functional teams.

The position requires flexibility in daily tasks with attention to detail and a self-motivated work ethic. The successful candidate will havedemonstratedexperience working in cross-functional and cross-disciplinary teams and providing technical leadership in the development of novel products.

Key responsibilities:

  • Lead the design, specification, and implementation of DICOM-RT interoperability features, including RT Plan, RT Dose, RT Structure Set, RT Image, and RT Ion Plan objects.
  • Architect and develop network API interfaces enabling communication between the treatment delivery system, OIS (e.g.ARIA,Mosaiq), and PACS servers.
  • Define andmaintainthe system's DICOM Conformance Statement and related integration documentation.
  • Drive end-to-end integration testing with clinical systems, including HL7/FHIR messaging where applicable.
  • Perform as a technical lead on significant software development projects spanning interoperability and clinical connectivity.
  • Write specifications, requirements, design documents, and test protocols for software projectsin accordance withIEC 62304 and thecompanydesign control process.
  • Develop safety-critical software for imaging and treatment delivery systems.
  • Work with external partners and clinical customers to develop,validate, and support system interfaces and integrations.
  • Contribute to the design and development of service and validation tools for DICOM interoperability.
  • Provide engineering support to partners, customers, and field service teams.
  • Support regulatory submissions (e.g.510(k)) as they relate to interoperability and software.
  • Contribute to system architecture and software development process improvements.
  • Mentor less experienced engineers in interoperability standards and medical device software practices.
  • Manage contractors relating to softwarecomponentdevelopment where applicable.

Relevant Knowledge and Skill requirements:

DICOM-RT and Clinical Interoperability

  • Deep working knowledge of DICOM-RT standards: RT Plan, RT Dose, RT Structure Set, RT Image, RT Ion Plan, and related SOP classes.
  • Practical experience integrating radiotherapy treatment systems with Oncology Information Systems (OIS) such as Varian ARIA or ElektaMosaiq, and PACS servers.
  • Proficiencywith DICOM networking protocols: C-STORE, C-FIND, C-MOVE, C-GET, DICOM TLS, Storage Commitment, and Worklist services.
  • Experience developing ormaintaininga DICOM Conformance Statement.
  • Familiarity with HL7 v2 and/or FHIR messaging as used in oncology workflows isadvantageous.
  • Understanding of IHE Radiation Oncology profiles (e.g.RO-PIR, IHE-RO) is a plus.

Medical Device Software Engineering

  • Proven experience developing medical device software in compliance with IEC 62304, including software lifecycle planning, classification, architecture, unit testing, and maintenance.
  • Familiarity with associated standards and guidance: ISO 14971 (risk management), IEC 62443 (cybersecurity), and applicable FDA/CE regulatory requirements for software.
  • Experience supporting regulatory submissions (510(k), CE Technical File) for software-intensive medical devices.
  • Experience with design and specification of software systems using UML.

Networking and Software Engineering

  • Solid understanding of TCP/IP networking: routing, firewalls, VLANs, TLS/SSL, and network security as it applies to connected medical devices.
  • Experience with REST and/orgRPCAPI design and integration in a clinical or embedded systems context.
  • Strong programming skills in Python and at least one of C++, C#, or Java.
  • Experience with Linux, shell scripting, and systems-level debugging.
  • Proficiencywith version control (Git), CI/CD pipelines, and software testing frameworks.

Experience

  • Minimum 5 years of domain-specific experience in medical device software engineering within radiotherapy, radiation oncology, or a closely related imaging/treatment modality.
  • 10+ years of total software engineering experience, withdemonstratedseniority in at least one prior role, is strongly preferred.
  • Experience working in cross-functional teams including clinical physics, systems engineering, quality, and regulatory affairs.
  • Ability to mentor and provide technical leadership to less experienced engineers.

About Leo Cancer Care

Leo Cancer Care is helping make changes in Radiation Therapy by shifting to upright patient positioning, imaging and treatment. We do what we do to find a better way, a better way to treat cancer and create a paradigm shift in radiation therapy to benefit all. We will do this by improving the accessibility and medicine in cancer care globally, making cancer treatment a more human experience for all.

Working in radiotherapy not only will you be driving change for the greater good, but you'll be working on products that span a large field of different disciplines.

Ways of Working

Leo Cancer Care is dedicated to fostering a diverse and inclusive workplace environment. We embrace and celebrate the unique backgrounds, experiences, and perspectives of all individuals. We believe that diversity enriches our organization and strengthens our ability to innovate and excel. Discrimination or harassment of any kind will not be tolerated. We encourage all qualified candidates to apply and join us in our mission to create a respectful and equitable workplace for all.


Leo Cancer Care is an equal opportunity employer.

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