36 c net developer jobs at 29 companies in Union, IL
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.NET Developer (C#)
Rosemont, Illinois, United States
$87k-$109k/yr OnsiteFull Time
1+ YOE1–2 years .NET/C# and programming experience (or 3–5+ yrs with HS/GED), Microsoft SQL Server and PowerShell experience, REST/SOAP integration, JSON/XML knowledge; ability to travel ~10–15%.
.NET, C#, Microsoft SQL Server, PowerShell, Microsoft IIS, Microsoft VBScript, JavaScript, REST, SOAP, JSON, XML, Secure FTP, IBM DB2, Microsoft Azure
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.NET Developer - QMS
Aurora, Illinois, United States
$70k-$105k/yr OnsiteFull Time
1+ YOEMust have .NET experience with C#, ASP.NET MVC/Web Forms, Web API, and SQL Server; Bachelor's degree in Computer Science/Engineering; 1+ years professional development experience; strong OOP and problem-solving skills.
.NET, C#, ASP.NET MVC, ASP.NET Web Forms, Web API, SQL Server
1w
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Senior .NET/C# Technical Lead
Oakbrook Terrace, Illinois, United States
$81k-$141k/yr HybridFull Time
10+ YOE3+ Mgmt10+ years .NET/C# and SQL Server experience, 3+ years leading technical teams, Microsoft Azure and Azure DevOps experience, Bachelor's degree required, strong leadership and communication skills.
.NET, C#, Microsoft Azure, Azure DevOps, SQL Server
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Lead .Net Developer
Lisle, Illinois, United States
$112k-$168k/yr OnsiteFull Time
1+ YOEExperience with .NET Core, ASP.NET, C#, ReactJS, SQL, Kubernetes, Git/TFS, CI/CD; Bachelor's (2+ yrs) or Master's (1+ yr) or 5+ yrs experience; authorized to work in the US.
.NET Core, ASP.NET, C#, VB.NET, Visual Studio, ReactJS, HTML, XML, CSS, JSON, JavaScript, jQuery, SQL, SOAP, REST, GitFlow, Kubernetes, SOLID, ADO, JIRA, CI/CD, TFS, GIT, Azure, Telerik
3w
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Senior .NET Application Developer
Lisle, Illinois, United States
$65-$70/hr HybridContract
10+ YOE10+ years professional software development with Microsoft stack (C#, .NET, ASP.NET Core), SQL Server, front-end frameworks, and DevOps tools.
C#, .NET Framework, ASP.NET, ASP.NET Core, MVC, Web API, ADO.NET, Entity Framework, WCF, SQL Server, HTML5, CSS, Bootstrap, JavaScript, jQuery, Angular, React, JSON, AJAX, Azure DevOps, GitHub, TFS, Visual Studio, VS Code, Postman, SoapUI
2w
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Lead Software Developer (.NET) & Head of thyssenkrupp IoT U.S. Office
Kenosha, Wisconsin, United States
OnsiteFull Time
5+ YOE2+ MgmtBachelor's degree or equivalent,5+ years software development experience with .NET/C#,2+ years leading or mentoring teams,agile experience,customer-facing skills,willingness to travel up to 20% within North America.
.NET, C#, Blazor, JavaScript, HTML
16h
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Developer
Lombard, Illinois, United States
$102k-$127k/yr RemoteFull Time
3+ YOERequires 3 years of .NET development experience, Visual Studio, VB.NET or C#, SQL, Windows Server, Active Directory, IIS, SOAP/REST, and JSON/XML; bachelor's degree or equivalent experience.
.NET, VB.NET, C#, ASP.NET, JavaScript, Microsoft SQL Server, Oracle, Microsoft Visual Studio, Google Maps, IIS, SOAP, REST, JSON, XML, .NET Core, Windows Server, Microsoft Active Directory, SSO, Microsoft SSRS, Microsoft SSIS, Microsoft Excel, Microsoft Outlook, Microsoft Word, Microsoft Teams, Microsoft Azure DevOps, Git, MySQL
1w
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Senior Software Developer
Bedford Park, Illinois, United States
$120k-$140k/yr OnsiteFull Time
5+ YOE5+ years professional software development experience; strong C#, .NET, React skills; proficiency with Git, CI/CD, automated testing, AI-assisted development tools; bachelor's in CS/engineering or equivalent.
C#, .NET, React, Git, CI/CD, Microsoft Azure, AWS, Claude Code, Codex, GitHub Copilot, SQL, REST APIs
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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
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Senior Software Engineer
North Chicago, Illinois, United States
OnsiteFull Time
5+ YOEU.S. citizen able to obtain Secret clearance; Bachelor's in engineering/computer science; 5+ years software development for modeling and simulation; experience with Windows and Linux; proficiency in Assembly, C/C++, .NET, Java; CompTIA Security+ preferred.
Assembly, C, C++, Microsoft .Net, C#, VB, Java, Microsoft Windows, Windows 7, Windows 10, Windows Server 2008R2, Windows Server 2012R2, Red Hat Enterprise Linux 5, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Linux
1mo
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Senior Developer (IBM Sterling B2B Integrator) (REMOTE)
Glenview or Pittsburgh or Los Angeles County
$90k-$121k/yr RemoteFull Time
5+ YOE5+ years development experience in enterprise environments; experience with IBM Sterling B2B Integrator, .NET (C#), Java, JavaScript, SDLC and Agile; strong communication, troubleshooting, and documentation skills.
.NET, C#, Java, JavaScript, IBM Sterling B2B Integrator
1mo
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Senior Full Stack Developer
Glenview, Illinois, United States
$105k-$120k/yr HybridFull Time
7+ YOE7+ years software development experience; degree in Computer Science/Data Science or equivalent; proficiency in .NET (C#/VB.NET), SQL/SQL Server, HTML, JavaScript, Visual Studio; experience with TFS/Git/GitHub; insurance domain familiarity.
.NET, C#, VB.NET, SQL, SQL Server, HTML, JavaScript, TFS, Git, GitHub, LifePro, Salesforce, Microsoft Visual Studio
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
1mo
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Senior Full Stack Developer
Glenview, Illinois, United States
$105k-$120k/yr HybridFull Time
7+ YOE7+ years software development; degree in computer science/data science or equivalent; proficiency with .NET (C#/VB.NET), SQL/SQL Server, HTML, JavaScript; Visual Studio and TFS/Git experience; insurance domain familiarity; strong communication and engineering skills.
.NET, C#, VB.NET, SQL, SQL Server, HTML, JavaScript, TFS, Git, GitHub, Microsoft Visual Studio, Lifepro(EXL), Salesforce
2mo
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Sr. Software Engineer - Middleware (Hybrid - Oak Brook, IL)
Oak Brook, Illinois, United States
$86k-$163k/yr HybridFull Time
5+ YOE5+ years of software development experience; Bachelor's in Computer Science or related field; strong Agile/Scrum experience; .NET/C#, Azure, SQL; RESTful services; CI/CD; mentoring and leadership abilities.
.NET, C#, Azure, SQL, Visual Studio, Git, NoSQL databases, messaging systems, RESTful services, CI/CD
1mo
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Software Applications Engineer
Elk Grove Village, Illinois, United States
$65k-$84k/yr OnsiteFull Time
3+ YOEBachelor's in CS/CE/Manufacturing, 3+ years software design and factory automation experience, proficiency with CNC, AutoCAD, SolidWorks, C#, C+, Microsoft Net Framework, MS Office; valid driver’s license and up to 50% travel.
CNC, AutoCAD, SolidWorks, Microsoft Windows, C#, C+, Microsoft Net Framework, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Outlook
2mo
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Sr Software Engineer (Hybrid) Bolingbrook, IL
Bolingbrook, Illinois, United States
$117k-$133k/yr HybridFull Time
5+ YOE5+ years with C#/.NET; UI frameworks; REST APIs; SQL; cloud deployments (Azure/AWS); strong problem-solving and communication.
C#, .NET, JavaScript, SQL, Azure, AWS, REST, Blazor, React, Angular, Vue, CSS
2mo
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Sr. Software Engineer
Oak Brook, Illinois, United States
OnsiteFull Time
5+ YOEBS in CS or related field or equivalent; 5+ yrs distributed multi-tier software development; strong comms; lead experience; proficient in C#/NET, HTML/JS; SQL Server; API development; Agile; OOP/SOLID.
C#/.NET, HTML, JavaScript, jQuery, Angular 2+, Microsoft SQL Server, Entity Framework, API development, Git, TFVC, Visual Studio, Azure, AWS, Azure DevOps, N Telerik Kendo UI, NativeScript, Xamarin, Windows UWP, OOP, SOLID
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Senior Software Development Engineer
Northbrook, Illinois, United States
$100k-$140k/yr OnsiteFull Time
4+ YOEBachelor's in CS or related, 4+ years C#/.NET experience (Blazor), MS SQL Server and VBA proficiency, EM engineering tool experience, strong OOP/design pattern knowledge, cross-team collaboration skills.
C#, .NET, Blazor, MS SQL Server, VBA, agentic engineering tools, Jira, Confluence, Bamboo, Stash, Message Bus, HTTP, REST APIs, JSON
3w
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Senior Device Engineer - Lifecycle Management
North Chicago, Illinois, United States
$125k-$237k/yr HybridFull Time
8+ YOE8+ years engineering experience with 5+ years embedded Windows programming in C#/.NET; medical device or regulated software experience preferred; BS or equivalent experience; strong communication and software lifecycle knowledge.
C#, .NET, RS232, SPI, USB, Microsoft Word, Microsoft Excel, IEC 62304