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Full Stack Developer Contract Jobs in Janesville, WI

SmartIPlace

Full Stack .NET Developer

Madison, WI · Remote

$50 - $55/hr

Our client is looking for a Full Stack .NET Developer. This position will work to support and enhance existing web applications maintained within the Enterprise section. This person will join an ...

EnsoData

Staff Engineer - Full Stack

Madison, WI · On-site

The Full Stack Engineer is a fundamental part of the EnsoData technology team, taking ownership of critical systems spanning the full application, from the API, data pipelines, and other key backend ...

EnsoData

Staff Engineer - Full Stack

Madison, WI · On-site +1

The Full Stack Engineer is a fundamental part of the EnsoData technology team, taking ownership of critical systems spanning the full application, from the API, data pipelines, and other key backend ...

EnsoData

Staff Engineer - Full Stack

Madison, WI · On-site

The Full Stack Engineer is a fundamental part of the EnsoData technology team, taking ownership of critical systems spanning the full application, from the API, data pipelines, and other key backend ...

Medium

Senior Full Stack Software Engineer

Oregon, WI · On-site

$170 - $200/hr

You'll be a Senior Full Stack Engineer reporting to our Head of Engineering, working across design, product, content, and support to deliver a best-in-class experience to every user. On a small ...

Posted today

SmartIPlace

.Net Developer[Mostly remote]

Madison, WI · On-site

Web-based (Camera ON) Due Date: 12/01/2025 Position Overview The State of Wisconsin DCF is seeking a Full Stack .NET Developer to support multiple high-profile web application initiatives. The ...

Recovery.com

Senior Staff Engineer

Madison, WI · On-site

$105K - $144K/yr

Design, build, test, and ship production-ready full-stack features across React/Next.js, Node.js, ... Partner closely with Engineering leadership, Product, and cross-functional stakeholders to define ...

Varsity Tutors

Web Development Tutor

Madison, WI · Remote

$18 - $40/hr

... full-stack development roles and software engineering careers. * Conceptual Teaching & Problem ... Varsity Tutors does not contract in: Alaska, California, Colorado, Delaware, Hawaii, Maine, New ...

SmartIPlace

.NET Developer

Madison, WI · Remote

$45 - $50/hr

Our client is looking for a Full Stack .NET Developer to work on a high-profile web application project. There are multiple projects underway which include an Enterprise-wide migration effort to a ...

Varsity Tutors

JavaScript Tutor

Madison, WI · Remote

$18 - $40/hr

... full-stack engineering coursework. * Conceptual Teaching & Problem-Solving: Skilled at breaking ... Varsity Tutors does not contract in: Alaska, California, Colorado, Delaware, Hawaii, Maine, New ...

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All JobsFull Stack Developer Contract JobsFull Stack Developer Contract Jobs in Janesville, WI

Full Stack Developer Contract information

See Janesville, WI salary details

$23

$58

$84

How much do full stack developer contract jobs pay per hour?

As of Aug 19, 2026, the average hourly pay for full stack developer contract in Janesville, WI is $58.29, according to ZipRecruiter salary data. Most workers in this role earn between $48.46 and $67.16 per hour, depending on experience, location, and employer.

What is a full stack developer contract?

A Full Stack Developer Contract refers to a temporary or project-based employment arrangement where a developer is responsible for both front-end and back-end aspects of web or software development. Full stack developers are skilled in multiple technologies, enabling them to handle databases, servers, systems engineering, and client-facing interfaces. Contract roles often provide flexibility for both the employer and the developer, and can range from short-term projects to longer engagements. These positions are typically filled by experienced professionals who can quickly adapt to different technologies and project needs.

What are some common challenges full stack developers face when working on contract projects?

As a contract Full Stack Developer, you may encounter challenges such as adapting quickly to new codebases, tools, and team workflows, since contract roles often require rapid onboarding. Balancing front-end and back-end tasks within tight deadlines can be demanding, especially when project requirements change or are not clearly defined. Additionally, frequent communication with both technical and non-technical stakeholders is essential to ensure alignment and successful project delivery. Staying organized and proactive in managing your workload will help you handle these challenges effectively.

What are the key skills and qualifications needed to thrive as a full stack developer on contract, and why are they important?

To thrive as a Full Stack Developer on contract, you need strong proficiency in both front-end (e.g., JavaScript, HTML/CSS, frameworks like React or Angular) and back-end (e.g., Node.js, Python, Java, databases) development, typically demonstrated through a relevant degree or portfolio. Familiarity with version control systems (like Git), CI/CD pipelines, cloud platforms (AWS, Azure), and sometimes certifications in specific technologies is highly valued. Excellent problem-solving, time management, and communication skills help you collaborate effectively and deliver results within tight deadlines. These abilities ensure you can independently manage diverse project requirements and consistently deliver high-quality, scalable software solutions for clients.

What is the difference between Full Stack Developer Contract vs Front End Developer Contract?

AspectFull Stack Developer ContractFront End Developer Contract
Required SkillsProficiency in both front-end and back-end technologies, databases, server managementExpertise in HTML, CSS, JavaScript, UI/UX design, front-end frameworks
Work EnvironmentDevelops complete applications, often involved in both client and server-side tasksFocuses on user interface, visual elements, and client-side functionality
Common UsageUsed across startups, tech companies, and agencies needing versatile developersPrimarily in front-end design agencies, web development firms, and client-facing projects

Full Stack Developer Contract roles require a broad skill set covering both front-end and back-end development, making them suitable for versatile projects. Front End Developer Contract positions focus specifically on user interface and experience. Understanding these differences helps employers and freelancers choose the right role for their needs.

What are the most commonly searched types of Full Stack Developer jobs in Janesville, WI?

The most popular types of Full Stack Developer jobs in Janesville, WI are:

What are popular job titles related to Full Stack Developer Contract jobs in Janesville, WI?

For Full Stack Developer Contract jobs in Janesville, WI, the most frequently searched job titles are:

Full Stack Developer Contract jobs near you

Full-Stack & Mobile Application Developer

Fairbanks Morse Defense

Beloit, WI • On-site

Other

Re-posted 20 days ago

Job description

Summary
Fairbanks Morse Technology's goal is to create secure, mission-driven, advanced, and reliable technology solutions through artificial intelligence, digital technology, smart engineering solutions, automation, and Advanced IOT Solutions.
FMT is seeking a Full-Stack AI & Mobile Application Developer to join our FM OnBoard team in a full-time, Beloit based roll
You will build and maintain two integrated products as well as any other projects that come up:
  • A full-stack AI-powered AI chat bot with advanced document processing web application in Microsoft Azure Government Cloud, using React on the frontend and Python/Node.js on the backend, integrated with Azure OpenAI for large-scale document processing (text, Excel, and image-based content such as schematics, inspection photos, and scanned technical manuals). The solution will support RAG, agentic workflows with tool use, and OCR, all within a Fed-compliant Azure Gov environment.
  • An offline-first cross-platform mobile application built with .NET MAUI targeting Android, iOS, Windows, and macOS from a shared codebase. The app will consume AI service APIs when online and fall back to cached content and local features when offline to support critical tasks in low-connectivity environments.

The ideal candidate has full-stack experience across modern web, AI, and mobile development, plus practical experience deploying and operating workloads in government cloud environments.
Principle Duties and Responsibilities
  • Full-Stack AI Application Development
    • Design and build a custom full-stack AI application using React (frontend), Python and Node.js (backend), and Azure OpenAI, deployed in Azure Government Cloud.
    • Implement scalable document processing pipelines that ingest, parse, and extract insight from heterogeneous sources including text documents, Microsoft Excel workbooks, and image-based content (schematics, inspection photos, scanned manuals).
    • Design and deliver retrieval-augmented generation (RAG) pipelines over large technical document corpora - including chunking, embedding, indexing, and retrieval strategies tuned for domain-specific content.
    • Build AI agents with tool-use and function-calling capabilities that execute multi-step workflows on behalf of operators, with appropriate guardrails and human-in-the-loop controls where needed.
    • Implement image analysis and optical character recognition (OCR) workflows using Azure AI Vision, Azure Document Intelligence, or comparable services.
    • Develop and publish secure, versioned REST API endpoints that expose AI capabilities to both the web frontend and downstream mobile clients.
    • Deploy, configure, and maintain services in Azure Government Cloud in line with federal security and compliance requirements.
    • Establish prompt engineering, evaluation, and observability practices to measure and continuously improve model output quality.
  • Mobile Application Development
    • Design, develop, and maintain offline-first cross-platform applications using .NET MAUI, targeting Android, iOS, Windows, and macOS from a shared codebase.
    • Integrate mobile clients with the AI application's REST API endpoints, implementing authentication, request retry, and caching strategies suited to intermittent connectivity.
    • Optimize local storage, data synchronization, and offline workflows so applications remain fully usable in low- or zero-connectivity environments.
    • Implement secure data synchronization protocols over Wi-Fi, Bluetooth, and USB.
    • Collaborate with UX/UI designers to deliver intuitive, high-performance interfaces tailored to field operators.
  • Engineering Practices
    • Write clean, maintainable, and secure code across multiple languages and stacks, applying modern testing practices including unit, integration, and automated end-to-end tests.
    • Ensure application security, scalability, and reliability by following industry best practices, including secure handling of model inputs, outputs, credentials, and sensitive content.
    • Produce clear technical documentation covering architectures, APIs, deployment procedures, and prompt/agent specifications.
    • Diagnose and resolve issues promptly across the full stack - frontend, backend, AI services, and mobile client.
  • Any other duties as the job requires

Qualifications and Educational Requirements
  • BS in Computer Science, Computer Engineering, Software Engineering, Electrical Engineering, or a related technical field; or equivalent practical experience
  • 3-5 years of experience in full stack software development, including front-end and back-end design and implementation, system integration, and technical project/task management; experience with deployment and production support is a plus.
  • Strong expertise in React for frontend development, with Python and Node.js for backend services.
  • Demonstrated experience integrating Azure OpenAI Service, OpenAI APIs, or equivalent large language model services into production applications.
  • Practical experience building retrieval-augmented generation (RAG) pipelines, including vector databases, embedding models, and retrieval strategies.
  • Experience processing and extracting information from multiple document formats including text, Microsoft Excel (.xlsx), and images - including OCR workflows.
  • Experience deploying and operating workloads in Microsoft Azure, with exposure to Azure Government Cloud and associated compliance considerations.
  • Strong expertise in .NET MAUI, including shared-codebase development targeting Android, iOS, Windows, and macOS.
  • Experience designing offline-first mobile architectures and optimizing for memory, battery efficiency, and load times.
  • Proficiency with REST API design, authentication patterns (OAuth 2.0 / OpenID Connect), and secure data synchronization over Wi-Fi, Bluetooth, and USB.
  • Proficiency with additional languages as needed (e.g., C#, JavaScript/TypeScript, HTML, CSS, Swift, Kotlin).
  • Experience with local / synchronizing databases such as PouchDB, CouchDB, or SQLite.
  • Proficiency with Git-based version control and containerization tools such as Docker.
  • Strong problem-solving skills, attention to detail, and excellent written and verbal communication, with the ability to explain technical concepts to varied audiences.
  • Ability to work collaboratively in a fast-paced environment.
  • This position requires access or potential access to Unclassified Naval Nuclear Propulsion Information, which is Not Releasable to Foreign Nationals (NOFORN) data. Therefore, to meet NOFORN requirement, you will have to provide proof of ship and attest that you do not have dual citizenship. Acceptable proof of ship is a US Passport, US Birth Certificate or Naturalization Certificate.

Preferred
  • Hands-on experience building and operating applications within Azure Government Cloud (FedRAMP, IL4 / IL5) environments.
  • Experience building AI agents with frameworks such as Microsoft Semantic Kernel, LangChain, LangGraph, or equivalent.
  • Experience with Azure AI Vision, Azure Document Intelligence, and Azure AI Search for document and image processing workflows.
  • Familiarity with LLM evaluation, observability, and prompt engineering best practices.
  • Experience with SAML and other federated authentication frameworks for secure enterprise and federal user authentication.
  • Experience with Blazor Hybrid for embedding web components into native applications.
  • Experience with 2D/3D digital twin technology.
  • Experience delivering in rapid, iterative development environments.
  • Working Knowledge of MS Project
  • Experience with SCADA or HMI software development
  • Cyber Security specifically as it relates to the government (STIG, NIST, etc)
  • Proficiency with reading and understanding mechanical drawings, P&ID's, water, air, and hydraulic system drawings.
  • Familiarity with implementing and deploying AI solutions
  • Application development using programing languages like: Python, Javascript, C/C++, etc

This specification is intended to indicate the kinds of tasks and levels of work difficulty that will be required of positions that will be given this title and shall not be construed as declaring what the specific duties and responsibilities of any particular position shall be. It is not intended to limit or in any way modify the right of any supervisor to assign, direct, and control the work of employees under his/her supervision. Ability to competently perform all the essential duties of the position, with or without reasonable accommodation, demonstrated commitment to effective customer service delivery, and the ability to work productively as a member of a team or work group are basic requirements of all positions at Fairbanks Morse Defense.

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