21 app developer jobs at 19 companies in Union, 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
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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
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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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
1mo
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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
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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
3d
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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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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
1w
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Lead Software Engineer - Tax Product Development
New York or Dallas or Houston or Chicago or Philadelphia or Charlotte or Raleigh or Tampa or Miami or Jacksonville or Fort Lauderdale or Tallahassee or Orlando or West Palm Beach or Grand Rapids or Detroit or Troy
$140k-$210k/yr HybridFull Time
6+ YOEBachelor's degree required;6+ years building web apps with Microsoft stack (C#, ASP.NET), SQL Server/Azure SQL/NoSQL, Azure, CI/CD, DevOps, monitoring, and leading engineering teams;strong design and communication skills.
C#, ASP.NET, HTML, JavaScript, Angular, TypeScript, React, SQL Server, Azure SQL, NoSQL, PowerShell, Graph API, Azure CLI, Microsoft Office Suite, Microsoft Visual Studio, Microsoft Azure Dev Ops, GitHub, Microsoft SQL Server, Microsoft Power BI, PowerApps, Azure Functions, App Insights, App Monitoring, HTTP Debug Tools
3w
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Forward Deployed Engineer
Schaumburg, Illinois, United States
RemoteFull Time
10+ YOE10+ years full-stack/frontend experience, proficiency in TypeScript/JavaScript and other languages, Next.js App Router and tRPC experience, strong commercial P&C insurance knowledge, excellent communication and consulting skills.
TypeScript, JavaScript, Python, Java, C++, React, Next.js, Next.js App Router, tRPC, Tailwind, shadcn/ui, Mantine
3w
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Sr. Software Engineer Manager - Front End
Oak Brook, Illinois, United States
$159k-$268k/yr OnsiteFull Time
10+ YOE5+ MgmtBachelor's in CS or related, 10+ years building iOS/Android/Web apps, 5+ years leadership, expertise in client architecture, Agile, CI/CD, and technical roadmapping.
XCode, Cocoa Touch, iOS SDK, Objective-C, Swift, Java, Kotlin, JavaScript, HTML, CSS, JSON, MVC, MVVM, CI/CD
2mo
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Collaboration Engineer (Senior Systems Engineer II)
Deerfield, Illinois, United States
$103k-$164k/yr OnsiteFull Time
2+ YOEAdminister and extend Microsoft 365 collaboration services; build PowerShell automations, Microsoft Graph integrations, Power Automate/Power Apps, and run SharePoint migrations. Requires technical infrastructure experience and leadership/mentoring experience.
Microsoft 365, Microsoft Exchange Online, Microsoft Teams, Microsoft SharePoint Online, Microsoft Entra ID, Microsoft Graph API, PowerShell, Power Automate, Power Apps, SharePoint Framework (SPFx), Git
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
1w
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Senior QA Engineer 2, Team Lead - ERP Platform
Wayne or Naperville
HybridFull Time
7+ YOE2+ Mgmt7+ years QA experience with hands-on test automation, 2+ years leading QA, experience with web apps, API and performance testing, strong SQL, and demonstrated use of AI to improve QA.
Playwright, Selenium/WebDriver, Cucumber, REST Assured, TestNG, Serenity, JMeter, k6, Gatling, Postman, SQL, Lambda, API Gateway, SQS, SNS, RDS, OpenAI
2mo
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IT Site Reliability & Performance Engineer
Wood Dale, Illinois, United States
$110k-$130k/yr OnsiteFull Time
3+ YOEExperience in app performance, monitoring/observability; Bachelor's degree or equivalent; 3+ years IT monitoring; strong knowledge of monitoring tools; Linux/Windows; Azure; scripting (Python, Bash, Ansible); analytical and collaborative skills.
New Relic, Python, Bash, Ansible, Azure, Linux, Windows, Networking, Databases, Web platforms
2mo
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Regional Development Manager
Naperville, Illinois, United States
$85k-$100k/yr OnsiteFull Time
3+ YOE3+ years in growth roles (marketing, business development or partnerships); strong presentation, public speaking and written/verbal communication; Bachelor's in marketing/communications preferred; HubSpot, Microsoft Teams, Google Apps experience; travel up to 25%.
HubSpot, Microsoft Teams, Google Apps
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.
1mo
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Multi-Unit Manager
Bolingbrook or Chicago or Illinois
$40k-$45k/yr FieldFull Time
3+ YOE3+ Mgmt3+ years management experience (multi-unit preferred), talent development, P&L analysis, proficiency in Microsoft/Google/Apple apps, strong communication, ability to travel across Illinois and work nights/weekends.
Microsoft, Google, Apple
1mo
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Sales Professional and Business Development
Glenview, Illinois, United States
$1-$3k/wk FieldFull Time
Relationship-driven sales professional; previous sales experience preferred; strong communication, interpersonal and organizational skills; comfortable using mobile apps and technology; motivated by performance-based income.
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