18 full stack api developer jobs at 15 companies in Wisconsin

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Full-Stack Developer
Wausau, Wisconsin, United States
HybridFull Time
M3 Insurance
M3 Insurance: Independent insurance brokerage and risk management firm.
1+ YOEBachelor's degree and 1+ year full-stack experience; proficiency in JavaScript, Python, HTML, CSS, SQL, frameworks (React/Angular/Vue), ML frameworks, cloud platforms, and API development.
JavaScript, Python, HTML, CSS, SQL, React, Angular, Vue.js, Pandas, Numpy, Matplotlib, Scikit-learn, TensorFlow, PyTorch, Snowflake, AWS, Azure, Git
2mo
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Full Stack Engineer, Senior
Oakland or Seattle or WA or OH or CA or Long Beach or AZ or CO or CT or FL or GA or MD or MN or NV or OR or El Dorado Hills or Lodi or Rancho Cordova or Redding or San Diego or Woodland Hills or AL or IL or VA or WI or TX or NY
$103k-$174k/yr HybridFull Time
Ascendiun
Ascendiun: Nonprofit parent overseeing health insurance and clinical service organizations.
5+ YOE5+ years full stack development; BA/BS or equivalent IT experience; React/Vue/Angular; .NET/Java/Node.js/Python APIs; SQL/NoSQL; Azure preferred; Docker; IaC; CI/CD; AI tools; healthcare experience preferred.
React, Vue, Angular, JavaScript, TypeScript, .NET, Java, Node.js, Python, MS SQL Server, Oracle, NoSQL, REST, Azure, AWS, GCP, Docker, Kubernetes, Ansible, Bicep, ARM, Terraform, GitHub, GitLab, Bitbucket, Git
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Fullstack Software Engineer
Kansas City or Dallas or Alabama or Arkansas or Arizona or California or Colorado or Connecticut or Florida or Georgia or Idaho or Iowa or Kentucky or Louisiana or Massachusetts or Maryland or Michigan or Minnesota or Mississippi or Montana or Nebraska or Nevada or New Jersey or New York or North Carolina or Ohio or Pennsylvania or Puerto Rico or Rhode Island or South Carolina or Tennessee or Texas or Utah or Virginia or Washington or Wisconsin or West Virginia
$130k-$150k/yr HybridFull Time
Michael Baker International
Michael Baker International: Engineering and consulting services for global infrastructure projects.
3+ YOEBachelor's or equivalent, 3+ years full‑stack web experience with modern frontend frameworks, TypeScript/JavaScript, backend in Node.js or Python, cloud platform experience, RESTful APIs, microservices, SQL, automated testing, and agile development.
React, Angular, Vue, TypeScript, JavaScript, Node.js, Python, AWS, Azure, GCP, Esri ArcGIS, MapLibre, Mapbox, PostGIS, Docker, Claude Code, Copilot, Cursor, SQL
1mo
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Software Engineer
Stevens Point, Wisconsin, United States
$70k-$95k/yr OnsiteFull Time
Berkshire Hathaway Specialty Insurance
Berkshire Hathaway Specialty InsuranceNYSE: BRK.A: Provides commercial property, casualty, and specialty insurance coverages globally.
2+ YOE2–6 years software development experience; Bachelor’s or Associate’s in CS or related preferred; full-stack development, API design, unit testing, cloud and container familiarity, version control, Agile experience.
1mo
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Sr. Digital Engineer
Madison or United States
$100k-$115k/yr RemoteFull Time
Duluth Trading Company
Duluth Trading CompanyNASDAQ: DLTH: Retailer of workwear, casual apparel, and outdoor accessories.
5+ YOEBachelor's in CS (or equivalent), 5+ years software development, full-stack and PWA experience, proficiency with JavaScript/Python/Ruby, HTML5/CSS3/Node.js, REST APIs, strong communication, and US work authorization required.
JavaScript, Python, Ruby, HTML5, CSS3, Node.js, REST APIs
1mo
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Senior Software Engineer, FullStack
Alabama or Alaska or Arkansas or Arizona or California or Colorado or Connecticut or Delaware or Florida or Georgia or Hawaii or Iowa or Idaho or Illinois or Indiana or Kansas or Kentucky or Louisiana or Maine or Michigan or Minnesota or Missouri or Mississippi or Montana or North Carolina or North Dakota or Nebraska or New Hampshire or New Jersey or New Mexico or Nevada or Ohio or Oklahoma or Pennsylvania or Rhode Island or South Carolina or South Dakota or Tennessee or Texas or Utah or Virginia or Washington or Wisconsin or West Virginia or Wyoming
$150k-$170k/yr RemoteFull Time
Patch My PC
Patch My PC: Automates third-party application patching for Microsoft IT management tools
8+ YOE8+ years professional software development; strong full-stack experience with .NET, React, and TypeScript; RESTful APIs, MongoDB/NoSQL, Docker, Azure DevOps, CI CD; production ownership and mentoring experience.
.NET, React, TypeScript, RESTful APIs, MongoDB, Docker, Azure DevOps, Microsoft Graph, Microsoft Intune, Microsoft ConfigMgr, WSUS, SignalR, WebSockets, Redux, Kubernetes, Redis, CI CD
2mo
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Senior Software Engineer
United States or Spain or Arizona or Arkansas or California or Connecticut or Florida or Georgia or Idaho or Illinois or Maine or Massachusetts or Michigan or Missouri or Nevada or New Hampshire or New Jersey or New York or North Carolina or Ohio or Oregon or Pennsylvania or Rhode Island or South Carolina or Tennessee or Texas or Utah or Vermont or Virginia or Washington or Wisconsin
RemoteFull Time
Breezeway
Breezeway: Software platform for hospitality property operations and service management.
7+ YOE7+ years full-stack experience with React and Python/Flask, designing REST/GraphQL APIs, SQLAlchemy ORM, Celery, SaaS experience, and AI/LLM integrations.
Python, Flask, React, REST, GraphQL, SQLAlchemy, Celery, React Native, LLM
1mo
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Senior Staff Engineer
Madison, Wisconsin, United States
$180k-$220k/yr HybridFull Time
Recovery.com
Recovery.com: Matches patients with mental health and addiction treatment centers.
10+ YOE10+ years professional software engineering experience; deep TypeScript/full-stack expertise; proven architecture, API, scalability, and reliability experience; strong communication and mentorship skills.
TypeScript, React, Next.js, Node.js, PostgreSQL, Algolia, AWS, GCP, Vercel, Cloudflare
1mo
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Sr. Software Engineer II (Remote - US)
New York City or California or Oregon or Colorado or Texas or Wisconsin or Minnesota or Louisiana or Florida or Virginia or North Carolina or South Carolina or New Jersey or New York or Connecticut or United Kingdom
$130k-$150k/yr RemoteFull Time
TixTrack
TixTrack: Provides cloud-based ticketing and venue management software for venues.
7+ YOE7+ years full-stack SaaS development with .NET Core back-end and modern frontend frameworks (React/Angular/Vue); strong SQL, API, SRE/DevOps appreciation, Agile experience, bachelor’s degree or equivalent.
.NET Core, React, Angular, Vue, HTML, CSS, JavaScript, SQL, Stripe, Microsoft Office, Google Suite, Slack, JIRA
3w
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Senior Software Development Engineer
Texas or Idaho or Arkansas or Vermont or Georgia or Minnesota or New Mexico or Montana or Iowa or Michigan or California or Oregon or Maine or Wisconsin or Washington or New York or North Dakota or District of Columbia or Kansas or Indiana or New Jersey or Nebraska or Connecticut or Nevada or Rhode Island or Louisiana or Kentucky or Mississippi or Ohio or Oklahoma or West Virginia or Massachusetts or Maryland or South Carolina or Alabama or Missouri or Utah or Arizona or Virginia or South Dakota or Illinois or North Carolina or Florida or Colorado or Pennsylvania or New Hampshire or Wyoming or Delaware
$83k-$222k/yr RemoteFull Time
CVS Health
CVS HealthNYSE: CVS: Provides retail pharmacy, health insurance, and pharmacy benefit management services.
3+ YOE3+ years full-stack engineering experience with Go; familiarity with TypeScript/Python/C#; front-end (HTML/CSS/JS); distributed systems, RESTful APIs, databases, cloud (Azure/AWS/GCP); effective communicator.
Go, Go modules, TypeScript, Python, C#, HTML, CSS, JavaScript, gRPC, Docker, Kubernetes, Terraform, New Relic, React, React Native, Azure, AWS, GCP, CI/CD
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Staff Software Engineer, Partners & Integrations (Remote - US)
California or Oregon or Colorado or Texas or Wisconsin or Minnesota or Louisiana or Florida or Virginia or North Carolina or South Carolina or New Jersey or New York or Connecticut
$170k-$190k/yr RemoteFull Time
TixTrack
TixTrack: Provides cloud-based ticketing and venue management software for venues.
8+ YOEBachelor's degree and 8+ years full‑stack SaaS experience; expertise in .NET Core, modern frontend frameworks, API/integration design, SRE/DevOps practices, mentoring, and CI/CD.
.NET Core, React, Angular, Vue, HTML, CSS, JavaScript, SQL, Microsoft Office, Google Suite, Slack, JIRA, Stripe
2mo
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Senior Staff Quality Engineer
Madison or Austin
OnsiteFull Time
Findhelp
Findhelp: Building digital infrastructure for connecting people to social services.
5+ YOE5+ years QA experience in agile environments; strong automation skills with Python/PyTest; experience with API automation, test frameworks (keyword-driven, POM), Google Cloud, Elastic Stack, and web technologies; coaching and mentoring experience.
Python, PyTest, Robot Framework, Playwright, Javascript, React, Google Cloud, Elastic Stack
2mo
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Senior Staff Quality Engineer
Austin or Madison
OnsiteFull Time
Findhelp
Findhelp: Building digital infrastructure for connecting people to social services.
5+ YOE5+ years QA experience in agile environments; designing and implementing test automation (keyword-driven, POM); API automation; Python and PyTest proficiency; familiarity with Robot Framework or Playwright, JavaScript/React, Google Cloud, and Elastic Stack.
Python, PyTest, Robot Framework, Playwright, Javascript, React, Google Cloud, Elastic Stack (Elasticsearch, Kibana), CI/CD, RESTful, SOAP
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Senior AI Platform Engineer
San Francisco or Alabama or Arkansas or California or Colorado or Florida or Georgia or Illinois or Kentucky or Massachusetts or Michigan or Montana or Missouri or Nevada or New Jersey or New York or North Carolina or Oregon or Pennsylvania or Texas or Washington or Utah or Virginia or Wisconsin
$156k-$231k/yr HybridFull Time
Afresh
Afresh: AI-powered inventory management for grocery store fresh food departments.
3+ YOE3+ years building production software or ML/data systems; strong Python and systems/API design; experience with LLM retrieval/RAG, agents, evaluation, Databricks/MLflow and modern data stacks.
Python, PySpark, dbt, Databricks, Delta Lake, Unity Catalog, MLflow, Astronomer, Airflow, Claude, GitHub, Shortcut, Notion, pgvector, Pinecone, Weaviate, LangGraph, MCP
1mo
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Technical Support Engineer
Washington or Arkansas or Arizona or California or Colorado or Connecticut or District of Columbia or Delaware or Florida or Georgia or Illinois or Indiana or Kansas or Kentucky or Massachusetts or Maryland or Michigan or Minnesota or North Carolina or New Hampshire or New Jersey or New York or Ohio or Oregon or Pennsylvania or South Carolina or Texas or Virginia or Washington or Wisconsin or Wyoming
$95k-$115k/yr RemoteFull Time
OPEXUS
OPEXUS: Software for government process management and legal data discovery.
2+ YOEUS citizen with current Secret clearance, 2+ years eDiscovery experience, CS/IT degree or equivalent, skills in PostgreSQL/Postgres, ELK Stack, Redis, Rabbit MQ, API servers, data analysis, ticketing, and customer-facing technical support.
ELK Stack, PostgreSQL, Redis, Rabbit MQ, API servers, Postgres
2mo
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Solutions Architecture – Sr Advisor
Milwaukee, Wisconsin, United States
OnsiteFull Time
Fiserv
FiservNew York Stock Exchange: FI: Provides financial technology solutions for merchants and financial institutions.
6+ YOEBachelor's degree in a related field and 6 years in Microsoft full stack development with .NET and SQL; experience with SSRS/SSIS/Power BI; API integration; SDLC, CI/CD, ITIL; Git/GitHub; leasing/finance apps like Odessa.
.NET, SQL, SSRS, SSIS, Power BI, APIs, Git, GitHub, Odessa lease accounting system
2mo
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Software Development Engineering - Sr Professional
Milwaukee, Wisconsin, United States
OnsiteFull Time
Fiserv
FiservNew York Stock Exchange: FI: Provides financial technology solutions for merchants and financial institutions.
2+ YOEBachelor's degree in CS or CE, 2 years full-stack dev in Java, REST APIs, Spring Boot, React/Angular, and NoSQL/SQL databases; experience with ReactJS, Kafka, security, IAM, networking.
Java, REST API, Spring Boot, React, Angular, jQuery, Oracle, SQL Server, Cosmos DB, MongoDB, Cassandra, Redis, Kafka, Security, IAM Policies, Networking
2w
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Assistant Director, Software Engineering - Public Investments
Milwaukee or New York City
$176k-$264k/yr HybridFull Time
Northwestern Mutual
Northwestern Mutual: Provides life insurance and financial planning services to individuals.
8+ YOE8+ years software and data engineering experience, prior people leadership, experience with public investment systems, strong full‑stack (React, Node.js) and data platform (dbt, Snowflake) expertise, REST API design, and technical leadership.
React, Node.js, REST APIs, dbt, Snowflake, Aladdin Enterprise, Calypso, Bloomberg, Charles River