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C Programming Jobs in Illinois (NOW HIRING)

Donohue and Associates

I&C Engineer/Designer

Chicago, IL · On-site

$75K - $150K/yr

We are seeking an I&C Engineer/Designer to join our team. The ideal candidate will be responsible for designing, developing, and implementing control systems for water/wastewater treatment facilities.

Donohue and Associates

I&C Engineer/Designer

Champaign, IL · On-site

$75K - $150K/yr

We are seeking an I&C Engineer/Designer to join our team. The ideal candidate will be responsible for designing, developing, and implementing control systems for water/wastewater treatment facilities.

Donohue and Associates

I&C Engineer/Designer

Naperville, IL · On-site

$75K - $150K/yr

We are seeking an I&C Engineer/Designer to join our team. The ideal candidate will be responsible for designing, developing, and implementing control systems for water/wastewater treatment facilities.

Talent2Win

Software Verification Engineer

Peru, IL · On-site

$90 - $130/hr

Strong proficiency in C programming. * Experience with software verification, code reviews, and unit testing. * Hands‑on experience writing and executing test procedures and test scripts.

Ascend Engineering

Autonomy Engineer (UAV)

Chicago, IL · On-site

$110 - $150/hr

Strong C++ or C programming skills * Experience with PX4 or ArduPilot -- or demonstrated ability to ramp quickly on a complex embedded autopilot codebase * Experience flying and testing UAV or ...

Kimley-Horn

Senior Electrical Engineer - I&C

Warrenville, IL · On-site

$100K - $160K/yr

Overview Kimley-Horn's Chicago West Suburbs office is seeking an Electrical I&C Engineer with 10+ years of experience to join our Natural Gas team! Responsibilities This person will serve as a senior ...

Kimley-Horn

Senior Electrical Engineer - I&C

Warrenville, IL · On-site

$100K - $160K/yr

Overview Kimley-Horn's Chicago West Suburbs office is seeking an Electrical I&C Engineer with 10+ years of experience to join our Natural Gas team! Responsibilities This person will serve as a senior ...

Ascend Engineering

Autonomy Engineer (UAV)

Chicago, IL · On-site

$130K - $180K/yr

Strong C++ or C programming skills * Experience with PX4 or ArduPilot or demonstrated ability to ramp quickly on a complex embedded autopilot codebase * Experience flying and testing UAV or robotic ...

Kimley-Horn

Senior Electrical Engineer - I&C

Warrenville, IL · On-site

$100K - $160K/yr

Overview Kimley-Horn's Chicago West Suburbs office is seeking an Electrical I&C Engineer with 10+ years of experience to join our Natural Gas team! Responsibilities This person will serve as a senior ...

Prattwhitney

Senior Software Engineer

Rockford, IL · On-site

$87 - $165/hr

Strong knowledge of embedded software architecture and C programming. * Hands‑on experience with embedded lab testing using oscilloscopes, in‑circuit emulators, and target debuggers.

Raytheon Technologies

Senior Software Engineer

Rockford, IL · On-site

$122K - $161K/yr

Strong knowledge of embedded software architecture and C programming. * Hands-on experience with embedded lab testing using oscilloscopes, in-circuit emulators, and target debuggers. Qualifications ...

Collins Aerospace

Senior Software Engineer

Rockford, IL · Hybrid

$122K - $161K/yr

Strong knowledge of embedded software architecture and C programming. * Hands-on experience with embedded lab testing using oscilloscopes, in-circuit emulators, and target debuggers. Qualifications ...

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Showing results 21-40

All JobsC Programming JobsC Programming Jobs in Illinois

C Programming information

See Illinois salary details

$10.7K

$113.8K

$173K

How much do c programming jobs pay per year?

As of Sep 3, 2026, the average yearly pay for c programming in Illinois is $113,799.00, according to ZipRecruiter salary data. Most workers in this role earn between $92,100.00 and $151,200.00 per year, depending on experience, location, and employer.

What is C programming?

C programming refers to the use of the C language, a powerful and widely-used programming language developed in the early 1970s. It is known for its efficiency, portability, and close-to-hardware capabilities, making it ideal for system software, embedded systems, and application development. C provides a foundation for many modern languages and is often taught as a first programming language due to its straightforward syntax and deep understanding of computer architecture. Learning C can help programmers write high-performance code and understand fundamental programming concepts.

What are the key skills and qualifications needed to thrive as a C programmer, and why are they important?

To thrive as a C Programmer, you need a strong understanding of C language syntax, algorithms, data structures, and typically a degree in computer science or related field. Familiarity with development tools like GCC, debugging tools (such as GDB), version control systems (like Git), and sometimes knowledge of embedded systems or operating system internals is essential. Attention to detail, problem-solving skills, and the ability to communicate technical concepts clearly make someone stand out in this role. These skills ensure efficient, reliable, and maintainable software development, which is critical for performance-sensitive and foundational system applications.

What are some common challenges faced by C programmers when working on large-scale projects?

C programmers working on large-scale projects often encounter challenges such as managing memory efficiently, debugging complex pointer-related bugs, and ensuring code modularity for easier maintenance. Collaboration with other developers requires clear documentation and adherence to coding standards to prevent integration issues. Additionally, since C lacks many of the built-in safeguards of modern languages, programmers must be diligent about testing and code review to avoid security vulnerabilities and undefined behaviors.

What is the difference between C Programming vs Software Developer?

AspectC ProgrammingSoftware Developer
Required CredentialsTypically a degree in Computer Science or related field; knowledge of C languageDegree in Computer Science, Software Engineering, or related; proficiency in multiple programming languages including C
Work EnvironmentOften embedded systems, operating systems, or hardware-related projectsWeb, mobile, desktop applications, and enterprise software development
Industry UsageEmbedded systems, firmware, OS developmentSoftware applications across various industries

While C Programming focuses on writing code in the C language for system-level and embedded projects, Software Developers have a broader role that includes designing, coding, and maintaining software applications using multiple languages. C programmers often work in specialized environments, whereas Software Developers work across diverse platforms and industries.

Are C programming language programmers still in demand?

C programming language programmers are still in demand, especially in systems programming, embedded systems, and performance-critical applications. Knowledge of C remains valuable for working with hardware, operating systems, and developing firmware, making it a relevant skill in various industries.

What can I do with C programming?

C programming skills enable you to develop system software, embedded systems, and performance-critical applications. It is widely used in operating systems, device drivers, and firmware development, often requiring knowledge of low-level programming and debugging tools.

What is the salary of a C programmer?

The salary of a C programmer varies based on experience, location, and industry, but typically ranges from $60,000 to $110,000 annually in many regions. Entry-level positions may start lower, while experienced developers with expertise in embedded systems or low-level programming can earn higher salaries.

What are the most commonly searched types of C Programming jobs in Illinois?

The most popular types of C Programming jobs in Illinois are:

What are popular job titles related to C Programming jobs in Illinois?

For C Programming jobs in Illinois, the most frequently searched job titles are:

What job categories do people searching C Programming jobs in Illinois look for?

The top searched job categories for C Programming jobs in Illinois are:

C Programming jobs near you
Infographic showing various C Programming job openings in Illinois as of August 2026, with employment types broken down into 1% Internship, 77% Full Time, 18% Part Time, 3% Contract, and 1% Nights. Highlights an 87% Physical, 3% Hybrid, and 10% Remote job distribution, with an average salary of $113,799 per year, or $54.7 per hour.

I&C Engineer/Designer

Donohue & Associates, Inc.

Naperville, IL

$75K - $150K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 29 days ago

Job description

We are seeking an I&C Engineer/Designer to join our team. The ideal candidate will be responsible for designing, developing, and implementing control systems for water/wastewater treatment facilities. The role involves working closely with our multidisciplinary engineering teams to ensure that all systems meet the required specifications and quality standards.

Responsibilities:

  • Design and develop control systems for water/wastewater treatment facilities.
  • Collaborate with our multidisciplinary engineering teams to ensure system functionality and efficiency.
  • Create electrical drawings and schematics using AutoCAD.
  • Ensure that all projects meet safety and quality standards.

Requirements:

  • Bachelor's degree in Electrical Engineering, Automation, or related field.
  • 5+ years' experience in designing and implementing control systems.
  • Proficiency in AutoCAD.
  • Strong analytical and problem-solving skills.
  • Excellent communication and team collaboration abilities.

An employee-owned engineering consulting firm since 1997, Donohue & Associates has multiple offices across the upper Midwest. We work in multi-discipline teams to provide municipal and industrial clients with client-focused services for drinking water, wastewater, and stormwater infrastructure. Engineering News-Record ranks Donohue among the Top 25 Wastewater Treatment Plant Design Firms, and our innovative design teams consistently receive awards for engineering excellence.

Donohue offers a competitive wage and comprehensive benefits package, including:

  • Medical, dental, and vision insurance
  • Robust 401(k) plan with company contribution
  • Paid time off and company holidays
  • Flexible work schedules around core hours
  • Short- and long-term disability/life insurance
  • Flexible spending accounts (FSAs)
  • Professional organization support
  • Discretionary annual bonuses
  • Industry-unique monthly profit-sharing plan

The anticipated salary range for this position is $75,000 $150,000. Actual compensation will depend on education, experience, expertise, licensure, certifications, geographic location, and organizational needs.

At Donohue, youll find a collaborative environment where your contributions directly influence our successand yours.

Donohue is an Equal Opportunity Employer.

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