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Senior Full Stack Software Developer Jobs in Janesville, WI

MLabs Ltd

Senior Full Stack Engineer (Platform)

Oregon, WI · On-site

$144 - $164/hr

Senior Full Stack Engineer - (Platform) Location :Remote - Preference for NYC - Or Remote USA OR ... Familiarity with CI/CD pipelines and modern DevOps workflows. * Interest in or curiosity about DeFi ...

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 +1

The Full Stack Engineer is a fundamental part of the EnsoData technology team, taking ownership of ... Using AI and machine learning, our software analyzes billions of data points collected from sensors ...

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 ... Using AI and machine learning, our software analyzes billions of data points collected from sensors ...

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 ... Using AI and machine learning, our software analyzes billions of data points collected from sensors ...

IMG LIVE

Senior Software Engineer

Oregon, WI · On-site

$131.25 - $175/hr

Strong full-stack development experience building modern web applications* Proficiency in **React ... CI/CD pipelines** (GitHub Actions, Azure DevOps, or similar)* Strong product instincts and ...

Resource Innovations

Senior Software Engineer

Madison, WI · Remote

$125K - $165K/yr

Resource Innovations is seeking Senior Software Engineer to join our growing Software as a Service ... Debug and troubleshoot complex issues across the full stack of technologies to ensure optimal ...

Resource Innovations

Senior Software Engineer

Madison, WI

$123K - $162K/yr

Resource Innovations is seeking Senior Software Engineer to join our growing Software as a Service ... Debug and troubleshoot complex issues across the full stack of technologies to ensure optimal ...

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, ... software engineering experience, including deep hands-on experience building and shipping ...

Wisconsin

Software Engineer/Developer III

Madison, WI · On-site +1

$90K/yr

... developer with a solid software development background, demonstrated ability to integrate ... Required Qualifications: * 5+ years of experience in the design and development of full stack ...

Dellfor Technologies

senior .net developer

Madison, WI · On-site

$55.50 - $70.50/hr

As a full stack engineer your contribution will have a direct impact on our customer experience and ... software development experience 3+ years of proven technical lead and architect experience ...

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Senior Full Stack Software Developer information

See Janesville, WI salary details

$23

$58

$84

How much do senior full stack software developer jobs pay per hour?

As of Aug 15, 2026, the average hourly pay for senior full stack software developer 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 the difference between Senior Full Stack Software Developer vs Software Engineer?

AspectSenior Full Stack Software DeveloperSoftware Engineer
CredentialsBachelor's degree in CS or related field; experience in full stack developmentBachelor's degree in CS or related field; may have certifications in specific technologies
Work EnvironmentCollaborates across front-end and back-end teams, often in agile settingsDesigns, develops, and maintains software applications, often in teams or individually
Industry UsageCommon in tech companies, startups, and agencies requiring versatile development skillsWidely used across industries for software development roles

While both roles involve software development, a Senior Full Stack Software Developer specializes in both front-end and back-end technologies, often taking on leadership responsibilities. A Software Engineer may focus on specific areas of software design and implementation, with less emphasis on full stack expertise. The roles overlap in skills and industry usage, but the senior developer typically has broader responsibilities and experience in full stack development.

What are the key skills and qualifications needed to thrive as a senior full stack software developer?

A Senior Full Stack Software Developer needs advanced proficiency in both front-end and back-end programming languages, strong problem-solving skills, and several years of relevant software development experience. Familiarity with frameworks like React or Angular, back-end technologies such as Node.js or Django, and experience with cloud platforms, CI/CD tools, and version control systems like Git are typically required. Excellent communication, teamwork, and leadership abilities help developers collaborate effectively and mentor junior team members. These skills are crucial for designing robust, scalable applications and leading complex projects to successful completion.

What is a senior full stack software developer?

A Senior Full Stack Software Developer is an experienced professional who designs, develops, and maintains both the front-end and back-end components of web applications. They are proficient in multiple programming languages and frameworks, enabling them to work on the entire technology stack, from databases and servers to user interfaces. In addition to coding, they often lead projects, mentor junior developers, and help architect scalable solutions that meet business needs. Their role requires strong problem-solving skills, a deep understanding of software development best practices, and the ability to collaborate with cross-functional teams.

What types of projects and technologies can a senior full stack software developer expect to work on, and how does the team typically collaborate?

As a Senior Full Stack Software Developer, you can expect to work on a diverse range of projects such as developing scalable web applications, integrating APIs, and optimizing system performance. The tech stack often includes front-end frameworks like React or Angular, back-end environments such as Node.js, Python, or Java, and databases like PostgreSQL or MongoDB. Collaboration is highly cross-functional—you’ll regularly coordinate with product managers, UX/UI designers, QA engineers, and other developers through agile methodologies, code reviews, and sprint planning sessions. This role offers opportunities to mentor junior developers, influence architectural decisions, and contribute to continuous process improvement.

What cities near Janesville, WI are hiring for Senior Full Stack Software Developer jobs?

Cities near Janesville, WI with the most Senior Full Stack Software Developer job openings:

Senior Full Stack Software Developer jobs near you
Infographic showing various Senior Full Stack Software Developer job openings in Janesville, WI as of August 2026, with employment types broken down into 1% Internship, 80% Full Time, 16% Part Time, and 3% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution, with an average salary of $121,233 per year, or $58.3 per hour.

Full-Stack & Mobile Application Developer

Fairbanks Morse Defense

Beloit, WI • On-site

Full-time

Re-posted 15 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 US Citizenship and attest that you do not have dual citizenship. Acceptable proof of US Citizenship 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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