146 c c developer jobs at 54 companies in Belvidere, 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
3mo
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I&C Electrical Engineer
Byron, Illinois, United States
$89k-$154k/yr OnsiteFull Time
0+ YOEB.S. in Engineering; nuclear experience or related engineering; ability to meet access requirements and pass medical exams; for levels, see minimum qualifications.
1mo
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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
21h
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Senior Electrical Engineer - I&C
Warrenville or Illinois
$100k-$160k/yr OnsiteFull Time
10+ YOEBachelor's degree in Electrical Engineering, 10+ years of electrical engineering experience, Professional Engineer license, teamwork and mentoring skills, and willingness to travel for site visits and client meetings.
2mo
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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
2w
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2026 Associate Embedded Software Engineer (Manufacturing) - Rolling Meadows IL
Rolling Meadows, Illinois, United States
$73k-$109k/yr OnsiteFull Time
Bachelor's, master's, or PhD in computer science, electrical/computer engineering, or related STEM field; C, C#, or C++; U.S. citizenship; ability to obtain Secret and Special Access Program clearances.
C, C#, C++, Oscilloscope, Signal Generator, Power Supplies, Power Meters, Visual Studio, LabView, TestStand, GitHub
3mo
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Senior Cyber Embedded Software Engineer
Schaumburg, Illinois, United States
OnsiteAll Commitments Available
Embedded software, cybersecurity, and reverse engineering experience; strong C/C++, Python; Linux; BS/MS in CS/CE/Software; US citizenship with ability to obtain clearance; TS/SCI preferred.
Ghidra, IDA Pro, Radare2, GDB, JTAG, Wireshark, ELF, PE, IP, TCP, UDP, TLS, SIP, SRTP, ARM, MIPS, PPC, x86, C, C++, Python, Linux
1w
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Senior Software Engineer
Rockford, Illinois, United States
$87k-$165k/yr HybridFull Time
5+ YOESTEM degree with 5+ years of relevant experience or advanced degree with 3+ years; embedded software lifecycle, C, requirements, verification, certification, lab testing, and aerospace standards experience required.
C, Assembly, Python, Tcl/Tk, MATLAB, Simulink, RTOS, IBM Rational Synergy, IBM Rational Change, DOORS, DXL, Texas Instruments TMS320F2812, PowerPC, CAN, Ethernet
2w
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Embedded Systems Engineer
South Beloit, Illinois, United States
OnsiteFull Time
3+ YOEBachelor's degree in electrical or computer engineering and 3–5 years of hardware and firmware development experience. Requires C/C++, circuit design, schematics, microcontrollers, communication interfaces, and laboratory testing.
C, C++, Altium, PADS, SolidWorks, Fusion, SPI, I²C, UART, CAN, Ethernet, oscilloscopes, frequency analyzers, current probes, logic analyzers, power supplies, BOMs, PCBA, PCB
2w
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Engineer Embedded Software
Rolling Meadows, Illinois, United States
$88k-$131k/yr OnsiteFull Time
2+ YOEBachelor's in CS/Electrical/Computer Engineering with 2+ years (or Master's with equivalent), US citizenship, ability to obtain Secret clearance, C/C#/C++ experience, familiarity with test instrumentation and protocols.
RS-232, GPIB, TCP/IP, C#, C, C++, Oscilloscope, Signal Generator, Power Supplies, Power Meters, Visual Studios, LabView, TestStand, GitHub
2mo
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Sr Embedded Engineer
Aurora or Melville
$102k-$173k/yr HybridFull Time
5+ YOE5+ years embedded firmware experience for sensor applications; proficiency in C/C++; experience with microcontrollers, DSPs, SoCs; sensor interfacing and signal processing; strong analytical and communication skills.
C, C++, microcontrollers, DSP, SoC
3w
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Embedded Software Engineer – Medical Devices
McHenry, Illinois, United States
$105k/yr HybridFull Time
3+ YOEBachelor's degree in relevant engineering,3+ years embedded firmware development experience,proficiency in Embedded C/C++,microcontroller firmware,hardware/software integration,RTOS and communication protocols.
Embedded C, C++, Git, Azure DevOps, Jira, JTAG, SWD, Oscilloscope, Logic Analyzer, MQTT, UART, SPI, I2C, CAN, BLE, Wi-Fi, RTOS
1mo
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Application Engineer - Software & Controls
Glendale Heights, Illinois, United States
OnsiteFull Time
2+ YOEAssociates degree in a technical field, 2+ years software coding experience, proficiency in MATLAB/Simulink/C/C++/Codesys, functional safety experience and hydraulic/mechatronic knowledge preferred.
AUTOSAR, ISO26262, ASPICE, ISO/SAE 21434, MATLAB, Simulink, C, C++, Codesys, HYDAC MATCH, CANBus, Ethernet
1mo
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Application Engineer- Software & Controls
Glendale Heights, Illinois, United States
$90k-$100k/yr OnsiteFull Time
2+ YOEAssociates degree in technology, 2+ years software coding experience, proficiency in MATLAB/Simulink/C/C++/Codesys, hydraulic/mechatronic knowledge and CANBus/Ethernet protocols a plus; willing to travel up to 10%.
MATLAB, Simulink, C, C++, Codesys, HYDAC MATCH, CANBus, Ethernet
1mo
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Associate Software Engineer (55226)
Vernon Hills, Illinois, United States
$69k-$85k/yr HybridFull Time
3+ YOEBachelor's in CS or related,3+ years software development,experience with C#/.NET,SQL Server or Oracle,Git,Agile,communication and troubleshooting skills.
Microsoft .NET, C#, SQL Server, Oracle, Git, CI/CD, DevOps
2d
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Developer - Information Technology
Arlington Heights, Illinois, United States
$90k-$117k/yr OnsiteFull Time
2+ YOEBachelor's degree in computer science, software engineering, or related field; 2+ years' related experience or ECDLP completion. Requires coding, back-end development, AI-assisted tools, Infrastructure as Code, SDLC, and U.S. work authorization.
GitHub Copilot, Claude Code, Infrastructure as Code, CI/CD, Azure, AWS, APPD, Dynatrace, .NET, C, C++, C#, Java, HTML, JavaScript, Angular, CSS, SQL, Oracle, NoSQL, DynamoDB, MongoDB, GitHub, Jira, Lucidchart, Lucidspark, Terraform, CloudFormation, Azure Bicep, Chef, Ansible, Windows Server, Microsoft Office, Microsoft PowerPoint, Microsoft Excel, Google Analytics, Couchbase
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
1w
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Sr Software Engineer
Naperville, Illinois, United States
$96k-$130k/yr OnsiteFull Time
5+ YOERequires 5+ years in software development, expertise in C#, Python, Angular, SQL, and AWS, Azure, or GCP, plus architecture, cloud-native, system design, testing, and debugging experience.
C#, Python, Angular, SQL, AWS, Azure, GCP, APIs, CI/CD, version control systems
2w
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Software Applications Engineer
Elk Grove Village, Illinois, United States
$65k-$70k/yr FieldFull Time
3+ YOEBachelor’s degree in a relevant engineering or computer science field, 3+ years of software development and factory automation experience, C#/.NET, Windows, design software, driver’s license, and strong troubleshooting skills.
AutoCAD, SolidWorks, Microsoft Windows, C#, .NET Framework, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Outlook, CNC
1w
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Forward Deployed Engineer
Schaumburg, Illinois, United States
RemoteFull Time
10+ YOE10+ years in full-stack or frontend SaaS/startup development; TypeScript and Next.js expertise; commercial P&C insurance underwriting knowledge; scalable systems, communication, autonomy, and customer travel skills.
TypeScript, JavaScript, Python, Java, C++, Next.js, tRPC, Tailwind, shadcn/ui, Mantine, CI/CD, React