231 c developer jobs at 98 companies in Union, IL
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Sr. Substation P&C Engineer
Los Angeles or United States or Warrenville or Houston or Denver or Moscow
RemoteFull Time
5+ YOEBachelor's in Electrical Engineering, 5+ years substation P&C engineering experience, hands-on with relay protection (SEL, GE, Siemens, ABB), knowledge of NERC/PRC/IEEE/NEC, utilities/EPC/consulting experience; PE preferred.
SEL, GE, Siemens, ABB, AutoCAD, MicroStation, Bluebeam, SCADA
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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
2mo
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P&C Underwriter
Conshohocken or Oak Brook or Plano
HybridFull Time
2+ YOE2+ years P&C underwriting experience with binding authority or brokerage focus; bachelor's degree or equivalent; product development/distribution experience preferred; ability to build profitable portfolio and provide team leadership.
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
2w
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I&C Electrical Engineer
Byron, Illinois, United States
$93k-$154k/yr OnsiteFull Time
2+ YOEB.S. in Engineering, minimum 2 years nuclear or related experience (mid) or 5 years (senior); must meet ANSI/ANS-3.1-2014 requirements and maintain unescorted access and medical fitness; EIT preferred; experience with electrical systems and I&C.
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Cross Platform Embedded Software Developer
Lincolnshire, Illinois, United States
$100k-$130k/yr OnsiteFull Time
5+ YOE5+ years C/C++ embedded development with RTOS, experience with Android and debugging, strong communication and ability to work on cross-functional distributed teams.
C, C++, IAR Integrated Development Environment, Visual Studio, Windows SDKs, Android Studio, Android SDK, SMX® RTOS, GitHub Copilot, Tara Systems Embedded Wizard, Bluetooth, Wi-Fi, Ethernet, HTTPS, Sockets
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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
3w
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Application Developer
Oakbrook Terrace, Illinois, United States
$97k-$130k/yr OnsiteFull Time
5+ YOE5+ years software development experience, bachelor's degree, proficiency in C#, Java or C++, Python, strong SQL and cloud (Azure/AWS) skills, SDLC/Git and networking knowledge.
C#, Java, C++, Python, SQL Server, MySQL, PostgreSQL, Microsoft Azure, AWS, Git, POS, ERP, HCM/HRIS
3w
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Senior Software Engineer
Elgin, Illinois, United States
OnsiteFull Time
Bachelor's degree in engineering, 4+ years medical device experience, 1+ year embedded development, proficiency in C and assembly, experience with microprocessor-based devices, communication protocols, debugger use, FDA/ISO processes.
C, Assembly, Linux, I2C, SPI, RS232, Ethernet, Bluetooth, Wi-Fi, Microsoft Word, Microsoft Excel, Microsoft PowerPoint
2w
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Engineer Software
Rolling Meadows, Illinois, United States
$88k-$131k/yr OnsiteFull Time
2+ YOEBachelor's in ECE/Computer Engineering or related STEM with 2+ years (or MS with 0+ years). Experience with C#, C, Java, SQL, version control, Agile tools; US citizenship and ability to obtain Secret clearance.
C#, C, Java, SQL, MS Office, Microsoft Excel, Git, Gitlabs, Github, Bitbucket, ClearCase, Azure DevOps, Jira, Confluence, Tableau, PowerBI, SSIS, Jenkins, Alteryx, Visual Studio, IIS Server, WinForm Design Framework, JavaScript
2w
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Engineer Software
Rolling Meadows, Illinois, United States
$88k-$131k/yr OnsiteFull Time
2+ YOEBS in ECE/Computer Engineering or related STEM with 2+ years (or MS with 0+ years), US citizenship, ability to obtain Secret clearance, experience with C#/C/Java, SQL/SSIS, version control and Agile tools.
C#, C, Java, Microsoft Office, Git, Gitlab, GitHub, Bitbucket, ClearCase, Azure DevOps, Jira, Tableau, PowerBI, SSIS, Jenkins, Alteryx, Visual Studio, IIS, ASP.net, Confluence
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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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Senior Civil Structural Engineer (LT&C)
Plainfield, Illinois, United States
$106k-$132k/yr OnsiteFull Time
6+ YOEBachelor's or Master's in civil/structural engineering, 6+ years LT&C tank engineering experience, familiarity with AISC/ASCE/IBC/API/ACI codes, PE in at least one state, Microsoft Office proficiency, strong communication skills.
Microsoft Office Professional
2w
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Developer, Salesforce Agentforce
Vernon Hills, Illinois, United States
$96k-$144k/yr OnsiteFull Time
3+ YOEBachelor's degree or equivalent, 3+ years development experience (2+ with Salesforce), proficiency with Agentforce, Apex, LWC, Flow, Visualforce, JavaScript, Python or C#, and required Salesforce certifications.
Agentforce, Apex, LWC, Flow, Visualforce, HTML/CSS, JavaScript, Python, C#, Einstein, Prompt Builder
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Embedded Software Engineer III
Buffalo Grove, Illinois, United States
$79k-$113k/yr OnsiteFull Time
6+ YOEABET-accredited bachelor's in computer/software engineering, 6+ years relevant experience, embedded software design knowledge, APQP/NPD and DFMEA experience, proficiency with Linux, C/C++, RTOS; familiarity with C#, Python, JavaScript, HTML, React.
Linux, C, C++, RTOS, C#, Python, JavaScript, HTML, React
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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
3w
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Senior Software Engineer, Integrations
Chicago or Woodridge
$115k-$210k/yr HybridFull Time
5+ YOE5+ years coding experience, B.S. in CS or equivalent, strong Python/C/C++/TypeScript skills, experience with firmware-to-application integrations, customer-facing troubleshooting, and building production software.
Python, C++, TypeScript, C
4w
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Senior Software Developer - Web
Waukegan or Glenview
$96k-$148k/yr OnsiteFull Time
5+ YOEBachelor's in CS/IT or related, 5+ years web development, strong OOP and web architecture, experience with ASP.NET, MVC, C#, JavaScript, T-SQL, code versioning and CI/CD.
ASP.NET, MVC, C#, JavaScript, T-SQL, CI / CD tools
1mo
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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
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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