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Computer Programmer Jobs in Belleville, IL (NOW HIRING)

Garmin

Software Engineer 1 - Avionics

Saint Louis, MO · On-site

Bachelor's Degree in Computer Science, Electrical Engineering, Computer Engineering, Software Engineering, Aerospace Engineering, Math, Physics or related field OR an equivalent combination of ...

The Timberline Group

Senior Software Developer

Saint Louis, MO · On-site +1

$53 - $70/hr

Senior Software Developer(s) to design custom software solutions based on client requirements. This ... Individuals will apply advanced theoretical knowledge of computer science principles and concepts ...

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All JobsComputer Programmer JobsComputer Programmer Jobs in Belleville, IL

Computer Programmer information

See Belleville, IL salary details

$32.1K

$63.1K

$92.8K

How much do computer programmer jobs pay per year?

As of Jul 13, 2026, the average yearly pay for computer programmer in Belleville, IL is $63,109.00, according to ZipRecruiter salary data. Most workers in this role earn between $49,000.00 and $77,700.00 per year, depending on experience, location, and employer.

What are computer programmers?

Computer programmers are professionals who write, test, and maintain the code that allows software programs and applications to function. They translate designs and instructions created by software engineers or developers into logical sequences that computers can follow. Programmers use various programming languages, such as Python, Java, or C++, to create and troubleshoot software to ensure it runs smoothly. Their work is essential to the development of websites, apps, operating systems, and a wide range of digital tools.

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

To thrive as a Computer Programmer, you need strong proficiency in programming languages (such as Python, Java, or C++), problem-solving skills, and a relevant degree or equivalent experience. Familiarity with software development tools, version control systems like Git, and sometimes certifications in specific languages or frameworks are commonly required. Attention to detail, communication skills, and the ability to work both independently and collaboratively are standout soft skills in this field. These competencies ensure high-quality, efficient code development and effective teamwork in rapidly evolving technical environments.

What Does a Computer Programmer Do?

A computer programmer designs, tests, writes, debugs, and maintains the computer program code. The coding language is written for the computer to be able to comprehend it and take specific actions according to those commands. Computer programmers can work with existing code or create something entirely new. The objective of coding is to develop programs that act on specific controls and behaviors. Coders need to be able to work with specialized algorithms, logic, and app domain, as well. But the other key goal of a computer programmer is to design interfaces that regular non-technical users can easily understand and use.

What is the difference between Computer Programmer vs Software Developer?

AspectComputer ProgrammerSoftware Developer
CredentialsTypically requires a bachelor's degree in computer science or related fieldUsually requires a bachelor's degree, often with additional experience or certifications
Work EnvironmentOften works in coding, debugging, and maintaining softwareDesigns, develops, tests, and maintains software applications
Industry UsageCommonly employed in IT, software firms, and tech departmentsFound in a wide range of industries including tech, finance, healthcare

While both roles involve coding and software creation, Computer Programmers primarily focus on writing and debugging code based on specifications, whereas Software Developers are involved in designing and building complete software solutions. The roles often overlap, but Developers typically have broader responsibilities in the software development lifecycle.

What are some typical challenges computer programmers face when working on large team projects?

Computer programmers working on large team projects often encounter challenges such as coordinating code changes, maintaining consistent coding standards, and managing dependencies between different components. Effective communication and the use of version control systems like Git are essential to prevent conflicts and ensure smooth collaboration. Additionally, programmers must often adapt to varying coding styles and workflows, making flexibility and a collaborative mindset important for success in team environments.
More about Computer Programmer jobs
What are the most commonly searched types of Computer Programmer jobs in Belleville, IL? The most popular types of Computer Programmer jobs in Belleville, IL are:
What are popular job titles related to Computer Programmer jobs in Belleville, IL? For Computer Programmer jobs in Belleville, IL, the most frequently searched job titles are:
What cities near Belleville, IL are hiring for Computer Programmer jobs? Cities near Belleville, IL with the most Computer Programmer job openings:
Computer Programmer jobs near you
Infographic showing various Computer Programmer job openings in Belleville, IL as of July 2026, with employment types broken down into 1% As Needed, 81% Full Time, 15% Part Time, 2% Contract, and 1% Nights. Highlights an 82% Physical, 1% Hybrid, and 17% Remote job distribution, with an average salary of $63,109 per year, or $30.3 per hour.
Automation Engineer (Experienced)

Automation Engineer (Experienced)

DMC Engineering

Saint Louis, MO • Hybrid

Full-time

Re-posted 6 days ago

Job description

(Hybrid)
Description
Do you like a challenge? Do you enjoy programming and working with electrical/mechanical systems? Consider a career as an Automation Engineer at DMC, with opportunities available in 13 of our office locations nationwide (excluding Austin).

Automation Engineers at DMC apply their programming skills and understanding of engineering fundamentals to provide solutions that involve developing software to interface with and control hardware. Our engineers work independently as well as collaborate with teams and clients, including maintaining daily communication, assisting with project management and developing business relationships.

About DMC
DMC is a leading engineering consulting firm, delivering high-caliber engineering and custom software development services globally. Specializing in innovative solutions for manufacturing, testing, and product development, our expertise spans industries from aerospace to consumer-packaged goods to healthcare, and more. Our engineers excel in staying ahead of cutting-edge technologies and delivering top notch solutions. We prioritize technical excellence and cultivate a collaborative environment for independent and team-based work, reflecting our commitment to professional growth and providing forward-thinking solutions to clients.

Responsibilities

  • Programs applications in accordance with DMC programming standards and best practices to meet and exceed customer requirements
  • Commissions solutions at customer sites (domestic/international travel as needed), troubleshooting electrical and mechanical systems
  • Works with most industrial PLC/HMI/SCADA platforms (Siemens, Rockwell, Ignition, etc.)
  • Continuously learns relevant technologies with guidance, gaining knowledge in sales, business development, and project processes
  • Supports system architecture design, performs engineering tasks at all stages, and takes on both leading and supporting roles
  • Mentors and technically advises new team members
  • Conveys deliverables to customers through various communication methods and develops and maintains relationships

Requirements
Must be authorized to work in the U.S. without employer sponsorship now or in the future.

  • Bachelor of Science in Mechanical, Electrical, or Computer Engineering (or related field)
  • Minimum GPA of 3.4
  • 5-7+ years of relevant experience
  • Proficient in programming, including text-based languages and object-oriented concepts
  • Quickly learns new technologies, understands complex systems, and builds on established patterns and models
  • Efficiently manages multiple projects, works directly with customers, and responds to their needs
  • Experience designing projects in industrial automation systems (e.g. PLCs, Motion Control, Process Control, HMI, SCADA, Robots, Machine Vision, etc.)
  • Interest in working across a variety of industries
  • Experience leading and/or mentoring technical project teams (preferred)
  • Strong written and verbal communication skills, with the ability to develop project proposals
  • 25% - 40% travel

Compensation:
Starting compensation is based on industry, relevant experience and location standards.

  • Engineer Levels II & III (3-5 years relevant experience): $95,000 - $115,000
  • Engineering Levels III & Above (5-10 years relevant experience): $115,000 - $165,000+

Additional Information:

  • Benefits/Culture/Bonuses and More!
  • Office Locations
  • DMC Website
  • Engineering Blogs
  • Additional Career Opportunities

#LI-Hybrid