13 app developer jobs at 13 companies in Darien, WI
1mo
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Senior Web/App Engineer
Janesville, Wisconsin, United States
$118k-$142k/yr OnsiteFull Time
5+ YOE5+ years software development experience; proficiency in Java, C#, Python, JavaScript; strong system architecture, design patterns, data modeling, cloud and application security knowledge; bachelor's in CS/Engineering preferred; experience with SaaS platforms (Adobe, Oracle) preferred.
Java, C#, Python, JavaScript, Adobe, Oracle
2mo
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Mobile app Developer (Paid Internship)
Fort Atkinson or Madison
$30/hr HybridMultiple Commitments Available
1+ YOEBuild a mobile prototype with on-device object detection using YOLO variants; prepare annotated dataset (300–500 images); train, optimize, and export models (CoreML/TensorFlow Lite); embed models on edge; proficiency in Python, OpenCV/PyTorch/TensorFlow, and mobile frameworks; US work authorization and portfolio/GitHub required.
Python, YOLOv8, YOLOv11, YOLO-NAS, YOLOX, Roboflow, CVAT, CoreML, TensorFlow Lite, OpenCV, PyTorch, TensorFlow, Apple Neural Engine, GPU, Dart/Flutter, JavaScript/React Native, Swift, Kotlin, GitHub
1w
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AI App Administrator (Racine, WI, US, 53403)
Racine, Wisconsin, United States
$80k-$135k/yr RemoteFull Time
2+ YOE2+ years developing and administering low-code AppSheet applications and enterprise AI agents; experience with API integrations, SQL/SAP/Salesforce connectors, prompt engineering, and LLM concepts.
Google AppSheet, Gemini Enterprise, Looker, SQL, SAP, Salesforce, Microsoft SharePoint, Microsoft OneDrive, Microsoft Teams, Google Apps Script, Python
3w
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Mobile iOS Engineer (Hybrid)
Madison or Boston
$80k-$131k/yr HybridFull Time
Experience building customer-facing iOS apps with Swift, iOS architectures (MVVM/MVC), REST API integration, Git and CI/CD, unit testing (XCTest), Xcode, and strong communication and debugging skills.
Swift, MVVM, MVC, REST APIs, Git, CI/CD, App Store, XCTest, Xcode, Airship, Optimizely, ForgeRock
1mo
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Sr. Software Developer
Waukegan, Illinois, United States
$123k-$131k/yr OnsiteFull Time
3+ YOEMaster's in CS +3 yrs or Bachelor's +5 yrs web development; experience with Microsoft ASP.NET MVC, C#, JavaScript, TypeScript, jQuery, Angular, SQL/T-SQL, Elastic, Dynatrace, CI/CD, Agile, OOP and web app architecture.
Elastic, Dynatrace, Microsoft ASP.NET MVC, C#, JavaScript, jQuery, TypeScript, Angular, SQL, T-SQL, CI/CD
5d
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Staff Software Development Engineer
Arizona or Buffalo Grove or Richardson
$118k-$237k/yr RemoteFull Time
7+ YOE7+ years large-scale software development, 2+ years technical lead, experience with Java/React/Angular/Spring Boot and cloud-native apps; CI/CD, containers, and cloud platform experience preferred.
Java, React, Angular, Spring Boot, REST API, JPA, Jenkins, CircleCI, GitHub, GitLab, Docker, Kubernetes, Azure, GCP, AWS, CI/CD
2mo
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Lead Engineer - QT/QML CPP
Wauwatosa, Wisconsin, United States
$100k-$110k/yr OnsiteFull Time
6+ YOE6+ years Qt/QML/C++ Windows development experience, strong debugging and OOD skills, multi-threading and high-performance app knowledge, Git and Rally/Jira experience, SQL Server, and technical documentation skills.
Qt, QML, C++, Git, Rally, Jira, SQL Server, Windows 7, Windows 10
1w
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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
4d
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Senior Backend Software Engineer - Cloud (55446)
Vernon Hills, Illinois, United States
$108k-$126k/yr HybridFull Time
8+ YOE8+ years professional software development experience with C#/.NET, backend systems, APIs, integrations, relational and NoSQL databases, cloud-native solutions and production support.
C#, .NET, PostgreSQL, RavenDB, SQL Server, Microsoft Azure, Azure Functions, App Services, Azure SQL, Storage, Key Vault, Service Bus
2mo
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AI Solutions Engineer
Milwaukee or United States
$124k-$235k/yr HybridFull Time
3+ YOEBachelor's in CS/IT or equivalent; 3+ years in cloud apps (AWS); AI/Agent-based solutions; API data integration; Python/JavaScript; AWS containers/serverless; experience with AI tools; US work authorization.
AWS, Python, JavaScript, Node.js, React, SQL, NoSQL, Sage Intacct, APIs, Amazon Bedrock, Cursor, Windsurf, Claude Code
1mo
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Senior Controls Engineer (67430)
Waukesha, Wisconsin, United States
$86k-$126k/yr OnsiteFull Time
3+ YOEBachelor's degree and 3+ years test/controls/troubleshooting experience; 3+ years with PLC/HMI programming and safety systems; experience with Visual Basic/Visual Studio, SQL and Microsoft apps; Six Sigma preferred.
Visual Basic, Visual Studio, SQL, NI LabVIEW, NI TestStand, Rockwell RSLogix, Studio 5000, FactoryTalk View ME/SE, VB6, PLC, HMI
3w
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Full-Stack & Mobile Application Developer
Beloit, Wisconsin, United States
OnsiteFull Time
3+ YOE3+ years full-stack experience with React, Python, Node.js, Azure, and .NET MAUI; experience with RAG, OCR, offline-first mobile apps, Azure Government Cloud, and secure production deployments.
Microsoft Azure Government Cloud, Azure OpenAI Service, React, Python, Node.js, .NET MAUI, Azure AI Vision, Azure Document Intelligence, Azure AI Search, Microsoft Project, Microsoft Semantic Kernel, LangChain, LangGraph, PouchDB, CouchDB, SQLite, Git, Docker, Blazor Hybrid, SCADA, HMI
2w
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Independent Field Surveyor
Elkhorn, Wisconsin, United States
FieldPart Time
Must be 18+, high school diploma or equivalent, smartphone to run company app, valid driver\u0002s license, clean driving record, reliable transportation and auto insurance, ability to stand during shift, lift up to 40 lbs, and work in cold store areas; no prior experience required.