85 app developer jobs at 66 companies in Johnsburg, IL
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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
1mo
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Developer I
Gurugram or Chicago or Houston
OnsiteFull Time
3+ YOEGraduate engineer with 3+ years development experience, foundational .net and JavaScript/React skills, exposure to cloud-native apps, REST APIs, RDBMS, Agile, and strong communication.
.NET, JavaScript, React, PostgreSQL, Redis, Kafka, REST APIs, AWS Lambda, AWS ECS, AWS EKS, CI/CD
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
1w
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Salesforce for Nonprofits: Salesforce Developer
Chicago, Illinois, United States
RemoteContract
4+ YOE4+ years Salesforce Platform development, nonprofit technical solutions experience, strong communication, Salesforce Admin and Platform Developer I/App Builder certification, expertise in Apex, LWC, Flows, Visualforce, REST API, OOP and relational databases.
Salesforce, Flow, Apex, Lightning Web Components, Visualforce, REST API, MuleSoft, GitHub, Bitbucket, Workato, Zapier, ETL, Experience Cloud
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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
3w
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Python Engineer
Milwaukee, Wisconsin, United States
$100k-$130k/yr HybridFull Time
3+ YOEBachelor's degree,3-5 years Python development,experience with enterprise Python apps,APIs,data processing,Pandas/NumPy,SQL,FastAPI,AWS familiarity,Agile experience;must be authorized to work in the US.
Python 3.10+, Pandas, NumPy, Matplotlib, Plotly, Bokeh, Streamlit, PostgreSQL, Microsoft SQL Server, Snowflake, FastAPI, Swagger/OpenAPI, Postman, AWS ECS, AWS EC2, AWS Lambda, IAM, pytest, Jira, GIT, Jenkins, Docker, Kubernetes, Microsoft Power Platform, Power BI, Dataverse
1w
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Angular Developer
Detroit or Chicago
$85k-$100k/yr HybridFull Time
5+ YOE5+ years building Angular web apps with TypeScript, JavaScript, HTML5, CSS3; experience with REST APIs and Git; US citizen or green card holder required.
Angular, TypeScript, JavaScript, HTML5, CSS3, REST APIs, Git, Neo4j, D3.js, Chart.js, Highcharts, ECharts, AWS, Azure
4d
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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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Senior Software Engineer - Tax Product Development
New York or Dallas or Houston or Chicago
$100k-$160k/yr OnsiteFull Time
5+ YOEFive+ years web-based app development with C#, ASP.NET; cloud/Azure; CI/CD; SQL Server; front-end frameworks; strong communication.
C#, ASP.NET, HTML, JavaScript, Angular, Typescript, Azure, CI/CD, PowerShell, Graph API, Azure CLI, Power BI, SharePoint, SPFx, Power Apps
1mo
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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
2mo
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Android Software Engineer II
Schaumburg, Illinois, United States
$81k-$117k/yr HybridFull Time
3+ YOE3+ years OO design and Android development; Java/Kotlin; experience debugging Android apps; strong problem-solving and collaboration; BS in CS/SE/CE or related.
Java, Kotlin, Android, OO design, SDKs/Logs, VS Code, GitHub Copilot, Firebase Crashlytics, Real Time Databases, AOSP
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Lead Software Engineer
Downers Grove, Illinois, United States
$120k-$130k/yr HybridFull Time
8+ YOE8+ years Microsoft-stack software development, expertise in .NET (6/7/8), ASP.NET Core/MVC, Web API, EF Core, Azure services, Microsoft SQL Server, JavaScript/TypeScript and modern front-end (Angular/React); experience with CI/CD, observability, secure coding, and leading engineering delivery.
.NET 6/7/8, ASP.NET Core, Web API, Entity Framework Core, ASP.NET MVC, Angular, React, JavaScript, TypeScript, HTML5, CSS, Microsoft SQL Server, Azure, App Service, Functions, Azure SQL, Storage, Application Insights, Azure DevOps, GitHub Actions, CI/CD, API gateways
1mo
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Sr. Software Engineer (Remote)
Oak Brook or Alabama or Arizona or Florida or Georgia or Iowa or Illinois or Indiana or Michigan or Minnesota or Missouri or North Carolina or Nebraska or Pennsylvania or South Carolina or Tennessee or Texas or Utah or Virginia or West Virginia
$107k-$137k/yr RemoteFull Time
5+ YOE5+ years software product development experience; expertise in .NET (C#), .NET Core, MS SQL/T-SQL; cloud, container, and Kubernetes experience; Agile SDLC, automated testing, security and compliance knowledge; Bachelor’s preferred.
.NET, C#, VB, .NET 4.8, .NET Core, C# 10, MS SQL Server T-SQL, SSIS, PowerShell, ActiveBatch, Azure DevOps, SonarQube, OCI, Docker, Kubernetes, Azure Container instances, App Service, OpenShift, GIT, REST, SOAP, Visual Studio Code
3w
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Senior Android Engineer (Fable Core)
San Francisco or Ottawa or Phoenix or Toronto or Los Angeles or Denver or Salt Lake City or Atlanta or Chicago or Houston or Portland or New York City or Vancouver or San Diego or Washington, D.C. or Sacramento or Jacksonville or Seattle or Mexico City or Austin or Miami or Boston or Dallas
$124k-$226k/yr HybridFull Time
5+ YOE5+ years Android development experience; strong Kotlin, Jetpack Compose, Coroutines/Flow; modern Android architecture (MVVM/MVI); experience shipping consumer apps; mentorship and cross-functional collaboration skills.
Kotlin, Jetpack Compose, Coroutines, Flow, MVVM, MVI, Firebase
1w
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Forward Deployed Engineer, Professional Services
Toronto or United States or Chicago
$173k-$260k/yr HybridFull Time
5+ YOE5+ years full‑stack development experience (JavaScript/TypeScript/React/Ruby/Go/Java), backend and production deployment experience, familiarity with containerized apps, strong problem solving and prototyping skills.
JavaScript, TypeScript, React, Ruby, Go, Java, AI APIs
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
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iOS Engineer II
Chicago, Illinois, United States
$115k-$149k/yr HybridFull Time
2+ YOE2+ years iOS experience building backend-dependent apps; proficiency with Swift and SwiftUI, concurrency, testing & automation; product ownership, collaboration, and growth mindset.
Swift, SwiftUI
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Staff Engineer
Park Ridge or Alabama or Connecticut or Florida or Georgia or Illinois or Kentucky or Louisiana or Massachusetts or Michigan or Missouri or North Carolina or Nebraska or New Hampshire or New Mexico or Ohio or Pennsylvania or South Carolina or Texas or Wisconsin
$165k-$175k/yr HybridFull Time
10+ YOE10+ years experience with .NET Framework/.NET Core, ASP.NET, Angular, SQL Server, Azure; experienced in architecture, CI/CD, testing, DevOps (Azure DevOps, TeamCity, Octopus), mentorship, and domain-driven design.
.NET Framework, .NET Core, ASP.NET, Angular, C#, TypeScript, JavaScript, SQL Server, Azure, App Services, Service Bus, Azure SQL, Azure DevOps, TeamCity, Octopus, GitHub Copilot
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Power Platform & Customer Engagement Apps Developer
Kuala Lumpur or London or Chicago or Asia or Europe
HybridFull Time
5+ YOERequires 5–8 years with Microsoft Power Platform, Power Apps, Power Automate, Dataverse, ALM, and Dynamics 365 Customer Engagement, plus requirements gathering, troubleshooting, documentation, and communication.
Microsoft Power Platform, Microsoft Power Apps, Microsoft Power Automate, Dataverse, Microsoft Dynamics 365 Customer Engagement, Microsoft Dynamics 365 Sales, Microsoft Dynamics 365 Customer Service, Microsoft Dynamics 365 Customer Insights Journeys, ALM
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