HiringCafe
Join our community

45 api developer jobs at 33 companies in Janesville, WI

PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
Help us #BeatIndeed & #BeatLinkedIn
3w
Save
Mark Applied
Hide
Software Engineer III - Tech Lead
Plano or Madison
$90k-$126k/yr HybridFull Time
Horace Mann
Horace MannNYSE: HMN: Providing insurance and financial solutions to educators and their families.
7+ YOEBachelor's in CS/IT or equivalent, 7+ years software development experience, technical leadership experience, strong proficiency with Java, .NET, SQL, DB2, SSIS, C#, COBOL, APIs; DevOps/CI/CD and AI experience preferred.
Java, .NET, SQL, DB2, SSIS, C#, COBOL, APIs, CI/CD pipelines, AI services
Job PostingView all
2w
Save
Mark Applied
Hide
Software Developer (GIS)
Waukesha, Wisconsin, United States
OnsiteFull Time
Ruekert & Mielke
Ruekert & Mielke: Civil engineering and infrastructure services for municipal governments.
3+ YOEBachelor's degree or equivalent experience; 3+ years software development or GIS application experience; proficiency with JavaScript/TypeScript, Python, Esri/ArcGIS tools, AWS, SQL/NoSQL, REST APIs; strong communication and problem-solving skills.
ArcGIS Pro, ArcGIS Online, ArcGIS Enterprise, ArcGIS Dashboards, ArcGIS Field Maps, Survey123, VertiGIS Studio, AWS, SQL, NoSQL, REST APIs, Python, JavaScript, TypeScript
Job PostingView all
2w
Save
Mark Applied
Hide
Enterprise Application Developer II
Madison or Cedar Rapids
$79k-$102k/yr OnsiteFull Time
Alliant Energy
Alliant EnergyNASDAQ: LNT: Provides regulated electricity and natural gas services to customers.
3+ YOE3 years related experience; preferred bachelor's in IT; experience with React, APIs, Azure, Sitecore, integrations, Agile; apply AI and DevSecOps practices.
React, APIs, Azure, Sitecore, DevSecOps, Artificial Intelligence
Job PostingView all
1mo
Save
Mark Applied
Hide
Software Engineer
Delafield, Wisconsin, United States
OnsiteFull Time
Evans Transportation Services
Evans Transportation Services: Provides third-party logistics and end-to-end transportation management solutions.
5+ YOE5+ years backend development experience with C#/.NET, building REST APIs and SQL databases; experience with Git, cloud (Azure/AWS) and Docker preferred; Bachelor\u0002s degree in CS or equivalent experience.
C#, .NET, .NET 9, REST APIs, SQL, Git, Microsoft Azure, Microsoft Azure SQL, AWS, Docker
Job PostingView all
1mo
Save
Mark Applied
Hide
Application Development Engineer (Hybrid)
Madison, Wisconsin, United States
$80k-$131k/yr HybridFull Time
American Family Insurance
American Family Insurance: Provides diverse insurance products and comprehensive financial services.
2+ YOEProficiency with Guidewire (Gosu) and PolicyCenter/BillingCenter/ClaimCenter, AI/ML and generative AI integration, GW Cloud migration experience, SQL, APIs, CI/CD, SDLC, Agile; 2+ years Guidewire/product upgrade experience.
GOSU, Guidewire PolicyCenter, Guidewire BillingCenter, Guidewire ClaimCenter, PCF, GW Cloud, AI/ML, SQL, APIs, web services, CI/CD
Job PostingView all
4d
Save
Mark Applied
Hide
Full Stack Developer
Madison, Wisconsin, United States
$85k-$117k/yr RemoteFull Time
Syms Strategic Group
Syms Strategic Group: Provides IT and professional services to federal government agencies.
8+ YOEU.S. citizen with eligibility for Public Trust clearance; 8+ years software development experience with strong back-end focus (Java/NodeJS), RESTful API design, Angular front-end, AWS cloud, Git/GitHub, and healthcare data experience.
Java, NodeJS, Angular, C#, .Net, TypeScript, XML, JSON, AWS, Azure, API Gateway, Lambda, S3, CloudWatch, Git, GitHub, JUnit, Jest, Docker, ECS, EKS, JIRA, Microsoft Teams
Job PostingView all
2w
Save
Mark Applied
Hide
Data Engineer - .NET Web Development
Middleton or Madison
OnsiteFull Time
Sentry Insurance
Sentry Insurance: Provides commercial insurance, life insurance, and retirement plans.
2+ YOEBachelors required; minimum 2 years data engineering experience. Proficiency with Microsoft .NET, C#, REST API, JavaScript, ASP.NET MVC, SQL Server, Visual Studio/VS Code/SSMS, Git, Postman, Bootstrap, AutoMapper; agile and software design principles.
Microsoft .NET, C#, REST API, JavaScript, ASP.NET MVC, HTML, CSS, SQL Server, Microsoft Visual Studio, Microsoft Visual Studio Code, Microsoft SQL Server Management Studio, Git, Postman, Bootstrap, AutoMapper
Job PostingView all
1mo
Save
Mark Applied
Hide
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
Job PostingView all
1mo
Save
Mark Applied
Hide
Integration Developer - Integrations, Data & AI Solutions
Pewaukee, Wisconsin, United States
HybridFull Time
Boelter
Boelter: Designs commercial kitchens and supplies professional foodservice equipment.
3+ YOE3+ years software/integration or data engineering experience; hands-on enterprise integrations, APIs, databases, middleware, EDI; familiarity with SAP, Microsoft Fabric, Power BI, SQL, ETL/ELT; strong communication and AI curiosity.
SAP, Microsoft Fabric, Cleo Integration Cloud, Microsoft Power BI, SQL, ETL/ELT, EDI, APIs
Job PostingView all
2d
Save
Mark Applied
Hide
Artificial Intelligence Engineer III
Madison or Kingwood
HybridFull Time
Insperity
InsperityNew York Stock Exchange: NSP: Provides human resources and business performance solutions to businesses.
5+ YOEBachelor's or equivalent experience, 5+ years in software/ML/AI engineering, advanced Python and API skills, experience with large-scale data platforms and LLM systems, familiarity with AI orchestration frameworks, strong communication.
Python, APIs, Snowflake, Databricks, Amazon Redshift, Microsoft Synapse, LangChain, LangGraph, LlamaIndex, Semantic Kernel
Job PostingView all
2d
Save
Mark Applied
Hide
Wisconet Web Developer
Madison, Wisconsin, United States
$75k/yr HybridFull Time
University of Wisconsin–Madison
University of Wisconsin–Madison: Public research university providing academic programs and clinical healthcare.
1.5+ YOE18+ months building web apps with React and Tailwind CSS, experience creating weather/environmental visualizations, RESTful APIs, frontend mapping and visualization tools, UX knowledge, strong communication.
React, Tailwind CSS, RESTful APIs, MapBox, Recharts, D3, HighCharts, Git, SVN
Job PostingView all
3mo
Save
Mark Applied
Hide
Sr. Staff Software Engineer
Dallas or Waukesha
$130k-$190k/yr HybridFull Time
Blue Yonder
Blue Yonder: Provides cloud-based digital supply chain and retail fulfillment software.
12+ YOE12+ years in software development with Java, Spring Boot, WebFlux, Kafka; microservices; cloud-native SaaS; leadership; Azure expertise.
Java, Spring Boot, WebFlux, Project Reactor, Kafka, Azure, Kubernetes, Docker, MongoDB, PostgreSQL, MySQL, Elasticsearch, Spark, Terraform, ARM templates, GIT, REST API, OAuth
Job PostingView all
2mo
Save
Mark Applied
Hide
Senior AI Solutions Engineer
Oconomowoc, Wisconsin, United States
HybridFull Time
Bruno Independent Living Aids
Bruno Independent Living Aids: Manufacturer of mobility and accessibility products for homes and vehicles.
6+ YOEBachelor’s in CS or related field; 6+ years progressive exp, 3 in manufacturing; AI-first development with agentic LLM tools; polyglot across languages; SQL, REST APIs, system integrations, GIT, BI, vendor mgmt; strong prompt engineering.
Claude Code, GitHub Copilot, Cursor, Windsurf, Epicor, Jitterbit, Salesforce, SQL, GIT
Job PostingView all
2w
Save
Mark Applied
Hide
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
Job PostingView all
2mo
Save
Mark Applied
Hide
Senior Software Engineer - Digital
Waukesha, Wisconsin, United States
OnsiteFull Time
GE HealthCare
GE HealthCareNasdaq: GEHC: Develops and sells medical imaging and diagnostic technology.
4+ YOEBachelor's in Computer Science/ STEM with 4+ years experience; EHR system experience; RESTful APIs; C#; Windows/Linux knowledge.
REST APIs, C#, Relational Database, Windows, Unix, Linux
Job PostingView all
2mo
Save
Mark Applied
Hide
Senior Software Engineer
Madison, Wisconsin, United States
$100k-$144k/yr RemoteFull Time
Resource Innovations
Resource Innovations: Provides clean energy services and software solutions for utilities.
6+ YOEExpertise in PHP, Laravel, Vue.js; 10+ years with PHP frameworks; 6+ years with Vue; API design; AWS; Git; SaaS experience; testable code with Pest/PHPUnit; agile team experience.
Laravel, Vue.js, Tailwind CSS, PHP, Pest, PHPUnit, AWS, NodeJS
Job PostingView all
1mo
Save
Mark Applied
Hide
Geospatial Backend Developer – Multiple Positions at Junior/Mid/Senior Levels
Springfield or Vienna or St. Louis or Sun Prairie
OnsiteFull Time
NV5
NV5: Provides engineering, consulting, and geospatial solutions for infrastructure projects.
2+ YOEUS citizen with active/current Top Secret/SCI clearance, Bachelor's in CS/Engineering/GIS/STEM, 2+ years backend development experience using Python/Node.js/Java, ArcGIS Enterprise experience, containerization (Docker/Kubernetes), REST API design, and cloud familiarity.
Esri, ArcGIS Enterprise, ArcGIS Enterprise SDKs, Python, Node.js, Java, Docker, Kubernetes, PostgreSQL, PostGIS, Microsoft SQL Server, Azure, AWS, GCP, REST
Job PostingView all
2mo
Save
Mark Applied
Hide
Senior Fullstack Engineer, Solve
Austin or Madison or San Francisco
$145k-$217k/yr HybridFull Time
Zendesk
Zendesk: Provides cloud-based software for customer service and support.
3+ YOE3+ years of production software experience; backend-first with APIs, async systems, integrations, and real-time systems; ownership of features end-to-end; experience with real-time or event-driven tech such as WebSockets/WebRTC.
Python, FastAPI, React, TypeScript, WebRTC, Redis, MongoDB, LLM / speech
Job PostingView all
1mo
Save
Mark Applied
Hide
FHIR Lead Full Stack Software Engineer - Remote
Madison, Wisconsin, United States
$113k-$193k/yr RemoteFull Time
UnitedHealth Group
UnitedHealth GroupNYSE: UNH: Provides health insurance and technology-enabled health care services.
8+ YOE8+ years as a full stack developer; 5+ years C#; 3+ years FHIR/interoperability; 3+ years healthcare IT; 2+ years knowledge of data structures, algorithms, and version control (Git).
C#, Python, FHIR, Git, APIs, SQL, NoSQL
Job PostingView all
5d
Save
Mark Applied
Hide
Senior Software Engineer - IBM App Connect Enterprise
Irving or Middleton or Denver or Seattle
$95k-$150k/yr HybridFull Time
Paradigm
Paradigm: A software transforming residential and construction industries with modern engineering and cloud-native integration solutions.
4+ YOE4+ years software engineering with hands-on IBM App Connect Enterprise, ESQL/Java, integration patterns, APIs, messaging (MQ/Kafka), Kubernetes/OpenShift, CI/CD and strong troubleshooting skills.
IBM App Connect Enterprise, ACE, ESQL, Java, REST, SOAP, IBM MQ, MQ, Kafka, DFDL, JSON, XML, Docker, Kubernetes, Red Hat OpenShift, Git, Jenkins, Tekton, UrbanCode, AppDynamics, Splunk, ELK, HTTP(S), JDBC
Job PostingView all

Explore Jobs

Expand Your Job Search