80 senior software developer jobs at 51 companies in Portage, WI
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Senior Software Engineer
Madison, Wisconsin, United States
$100k-$144k/yr RemoteFull Time
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
3mo
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Senior Staff Software Engineer
Madison or Austin
OnsiteFull Time
8+ YOE8+ years professional software development, strong Python and ReactJS experience preferred, good SQL and database knowledge, experience with cloud (GCP preferred), technical writing, design, and mentoring skills.
Python, ReactJS, SQL, GCP
5d
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Senior Software Engineer
Madison, Wisconsin, United States
$78k-$156k/yr OnsiteFull Time
4+ YOEBachelor's in CS/related or HS+4yrs experience, strong OOP, REST, relational DB and cloud experience, proficiency in multiple programming languages, Agile tools, and ability to perform duties with minimal oversight.
Postgres, SQL Server, JPA2, Hibernate, Entity Framework, Azure, AWS/SDKs, JIRA, Confluence, C++, Java, JavaScript, Python, SQL, PL/SQL, .NET, Google Web Toolkit, SpringBoot, Angular, GraphQL, CI/CD, ECS, Lambda
3w
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Software Engineer
Sun Prairie, Wisconsin, United States
$70k-$100k/yr OnsiteFull Time
5+ YOEBachelor's degree,5+ years professional software development experience,proficiency with Java,Python or C#,REST/SOAP,cloud platforms (AWS/Azure/GCP),Git,CI,Agile and strong communication.
Java, Python, C#, RESTful, SOAP, AWS, Microsoft Azure, Google Cloud, Git
5d
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Senior Software Engineer
Madison, Wisconsin, United States
$78k-$156k/yr OnsiteFull Time
4+ YOEBachelor's in CS/Data Science/IS/Math/Engineering or HS+4yrs; strong OOP, REST, relational DBs, ORMs, cloud (Azure/AWS), Agile tools; experience with C++, Java, JavaScript, Python, SQL, .NET; ability to design and lead software efforts.
Postgres, SQL Server, JPA2, Hibernate, Entity Framework, Azure, AWS/SDKs, JIRA, Confluence, C++, Java, JavaScript, Python, SQL, PL/SQL, .NET, Google Web Toolkit, Java 21+, SpringBoot 4+, Angular 20+, GraphQL, CI/CD, ECS, Lambda
6d
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Senior Mobile Software Developer
Watertown, Wisconsin, United States
RemoteFull Time
6+ YOE6+ years mobile app experience with React Native, offline-first architecture, BLE integrations, synchronization, and mentorship/technical leadership experience.
React Native, Bluetooth Low Energy (BLE), Jira, Gitflow, CI/CD
2d
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Xformative - Fintech Software Engineer
Madison, Wisconsin, United States
RemoteFull Time
5+ YOE5+ years software development experience in payments, strong Node.js and TypeScript skills, API and backend engineering, AWS experience, knowledge of payment compliance (PCI-DSS/SOC2), bachelor\u0002s degree preferred.
Node.js, TypeScript, AWS, AWS CloudWatch, PCI-DSS, SOC2
2w
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Leo Cancer Care: Senior Software Engineer – Interoperability
Middleton, Wisconsin, United States
HybridFull Time
5+ YOEDeep DICOM-RT interoperability experience, medical device software under IEC 62304, network integration, 5+ years domain experience, strong Python and C++/C#/Java skills, Linux and Git proficiency, HL7/FHIR familiarity.
DICOM-RT, HL7, FHIR, UML, Python, C++, C#, Java, Linux, Git, gRPC, REST
2mo
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Chief Principal Software Engineer- Cloud
Greenville or Remote or Remote
$119k-$204k/yr HybridFull Time
8+ YOE8+ years backend cloud software development; Azure cloud; C#/.NET; IoT/cloud data platforms; containerization; CI/CD; security and observability.
Azure, C#, NET Core, Docker, Kubernetes, Terraform, GitHub Actions, Event Grid, Event Hub, Azure Functions, CosmosDB, Redis, Azure Monitor, Application Insights
1w
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Software Engineer/Developer III
Madison, Wisconsin, United States
$90k/yr HybridFull Time
5+ YOE5+ years designing and developing full-stack applications with Microsoft .NET and SQL Server; 2+ years Angular; proficiency with C#, ASP.Net Core, TypeScript, HTML5, CSS, JavaScript, Microsoft Entity Framework, relational databases, and Git.
Microsoft .NET, SQL Server, Angular, C#, ASP.Net Core, TypeScript, HTML5, CSS, JavaScript, Microsoft Entity Framework, Git, OpenIDConnect, Canvas LMS, Salesforce, Salesforce APEX, ClaudeCode, Codex, GitHub Copilot
3mo
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Principal Software Engineer
Madison, Wisconsin, United States
$153k-$259k/yr OnsiteFull Time
Senior individual contributor with expertise in OO languages, REST/DB, cloud, Agile, and enterprise-scale digital engineering.
C, C++, Java, JavaScript, Python, SQL, PL/SQL, .NET, Google Web Toolkit, JPA, Hibernate, Azure, AWS, JIRA, Confluence
2mo
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Senior Embedded Software Engineer-Innovation Team
Cottage Grove, Wisconsin, United States
OnsiteFull Time
Senior embedded software engineer with degree in CS/EE and experience in C/C++, RTOS, Python/JS, and cross-functional collaboration.
C++, C#, Java, C, Python, JavaScript, RTOS
3w
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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
3w
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Senior Software Engineer Applied AI
Madison or United States
RemoteFull Time
7+ YOE7+ years building and operating production backend systems, production LLM/ML experience, cloud distributed-systems expertise, and disciplined practices for regulated environments.
Python, AWS, LLMs
2mo
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Senior Backend Software Engineer, Solve Voice
Austin or Madison or San Francisco
$145k-$217k/yr HybridFull Time
3+ YOE3+ years backend engineering; real-time systems (WebRTC/SIP); Python or equivalent; API design; async architectures; frontend basics.
Python, WebRTC, WebSockets, SIP, APIs, Async frameworks
1mo
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Senior Staff Engineer
Madison, Wisconsin, United States
$180k-$220k/yr HybridFull Time
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
2mo
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Senior Engineer
Madison or Boston
$99k-$167k/yr HybridFull Time
3+ YOEBackend Java developer with 3+ years' experience, proficiency in Java and Spring, cloud experience (AWS, GCP or Microsoft Azure), Git/GitLab and CI/CD, SDLC knowledge, and strong technical communication skills.
Java, Spring Framework, AWS, GCP, Microsoft Azure, Git, GitLab, CI/CD
1w
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Software Engineer
United States or Austin or Boston or Chattanooga or Chicago or Dallas or Denver or Houston or Jefferson City or Kansas City or Madison or Milwaukee or Minneapolis or Nashville or Omaha or Providence or Springfield or Saint Louis or Washington
$76k-$234k/yr HybridFull Time
5+ YOEBachelor's or equivalent,5+ years application engineering experience,full‑stack proficiency with backend focus,experience with generative AI and cloud deployment (Azure preferred),strong architecture and communication skills.
Python, Javascript, TypeScript, React, Vue, Azure, CI/CD, LLM APIs
2w
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Senior Java Developer
Madison, Wisconsin, United States
$61k-$104k/yr HybridFull Time
Experience with microservices, AWS, JDK 17, JUnit, Spring Boot, Postgres, Docker, Git/GitLab/GitHub, CI/CD, Sonar; payments domain and project lead experience preferred; testing with JMeter/Playwright; AI tool (Claude) preferred.
Microservices, AWS, JDK 17, JUnit, Spring Boot, Postgres, Sonar, CICD, Docker, GitHub, GitLab, Git, JMeter, Playwright, Claude
1mo
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Senior ServiceNow Developer
Minnesota or Tennessee or Madison or Reston
RemoteFull Time
7+ YOEBachelor's in IT, 7+ years relevant experience, proven ServiceNow integration experience, ability to obtain Public Trust clearance (U.S. citizen or green card with 3 years residency). ServiceNow certifications and Scrum/Agile experience preferred.
ServiceNow, FedRAMP, Scrum, Agile, SDLC
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