9 api java developer jobs at 6 companies in Janesville, WI
2mo
Save
Mark Applied
Hide
Senior Java Engineer (Hybrid)
Madison or Boston
$99k-$167k/yr HybridFull Time
5+ YOERequires 5+ years of AWS-backed Java development with Spring Boot, RESTful APIs, Python, SQL, software architecture, testing, integration technologies, SDLC, and insurance experience.
Java, Amazon Web Services (AWS), Spring Boot, RESTful API, Python, SQL, Microsoft Copilot, Claude Code
2mo
Save
Mark Applied
Hide
Senior Java Engineer (Hybrid)
Madison or Boston
$99k-$167k/yr HybridFull Time
5+ YOE5+ years AWS-backed Java development experience building Spring Boot and RESTful APIs; proficiency with Python and SQL; experience with integration, SDLC, testing, and cloud services; insurance experience preferred; ability to travel up to 10%.
Java, Spring Boot, RESTful API, Python, SQL, AWS, Microsoft Copilot, Claude Code
2mo
Save
Mark Applied
Hide
Senior Telephony Engineer
Madison, Wisconsin, United States
$99k-$167k/yr HybridFull Time
3+ YOEMinimum 3 years of heavy Node.js experience, Java application and API development, complex software development, systems integration, SDLC, design specifications, testing, and technical communication.
Node.js, Java, API, Genesys, SDLC
2w
Save
Mark Applied
Hide
Integration Developer (840017)
Pewaukee or Illinois or Iowa or Michigan or Minnesota
$1/yr HybridFull Time
2+ YOEBachelor’s degree in Computer Science, Information Systems, or related field; 2+ years of API/SDK integration experience; proficiency in Python, PHP, JavaScript, Java, JSON, REST APIs, Git, and integration tools.
Python, JSON, RESTful APIs, PHP, Postman, Bruno, Swagger/OpenAPI, Git, JavaScript, Java, OAuth, OpenID Connect, SQL, ETL, WCAG, FERPA, Banner, Ellucian
2mo
Save
Mark Applied
Hide
Geospatial Backend Developer – Multiple Positions at Junior/Mid/Senior Levels
St. Louis or St. Charles or Virginia or Sun Prairie
OnsiteFull Time
2+ YOEActive Top Secret/SCI clearance, bachelor’s degree in STEM, 2+ years backend development with Python/Node.js/Java, experience with ArcGIS Enterprise, containerization, API design, and geoprocessing workflows.
ArcGIS Enterprise, Python, Node.js, Java, Docker, Kubernetes, PostgreSQL/PostGIS, SQL Server, Azure, AWS, GCP
1mo
Save
Mark Applied
Hide
Senior Software Engineer - IBM App Connect Enterprise
Irving or Middleton or Denver or Seattle
$95k-$150k/yr HybridFull Time
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
2mo
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
2+ YOEActive US citizenship with TS/SCI, bachelor\u0002s degree in STEM, 2+ years backend experience, Python/Node.js/Java, ArcGIS Enterprise integration, containerization (Docker/Kubernetes), API and geoprocessing experience.
Python, Node.js, Java, ArcGIS Enterprise, Docker, Kubernetes, PostgreSQL/PostGIS, SQL Server, Azure, AWS, GCP
3mo
Save
Mark Applied
Hide
Software Engineer - AI & Cloud Engineering (Early to Mid Career, WI Based)
Madison, Wisconsin, United States
OnsiteFull Time
3+ YOE3-6 years software engineering; strong programming in Python/C++/Rust/Go/Java/JavaScript; backend systems/APIs/distributed services; Linux/Git; ability to drive projects; degree in technical field
Python, C++, Rust, Go, Java, JavaScript, Linux, Git, Docker, Kubernetes, AWS, GCP, Azure
2mo
Save
Mark Applied
Hide
Senior AI Integration Analyst
Madison, Wisconsin, United States
$91k-$155k/yr OnsiteFull Time
5+ YOE5+ years IT integrations experience, 3+ years interface engine development, Epic Bridges certification, ability with Corepoint, HL7 v2/XML/CSV/HTML parsing, REST/FHIR APIs and Python; US work authorization required.
MuleSoft, Dell Boomi, Azure Integration Services, Microsoft Azure, REST, FHIR, Python, Corepoint, Epic Bridges, HL7 v2, XML, CSV, HTML, Epic Cogito, Epic Clarity, Caboodle, Interconnect, App Orchard, Java, C#, SOAP, LLM APIs, Snowflake, AWS, SAP, Oracle, Workday