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Computer System Programmer Jobs in Saint Louis, MO

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Computer System Programmer information

See Saint Louis, MO salary details

$16

$48

$79

How much do computer system programmer jobs pay per hour?

As of Jul 13, 2026, the average hourly pay for computer system programmer in Saint Louis, MO is $48.36, according to ZipRecruiter salary data. Most workers in this role earn between $35.05 and $60.53 per hour, depending on experience, location, and employer.

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

To thrive as a Computer System Programmer, you need strong programming abilities in languages such as C, C++, or Java, along with a degree in computer science or a related field. Familiarity with operating systems, integrated development environments (IDEs), and version control systems like Git is typically required. Attention to detail, analytical thinking, and effective problem-solving are essential soft skills that distinguish top performers. These competencies ensure the development of reliable, efficient, and maintainable systems that meet organizational and user needs.

What is the difference between Computer System Programmer vs Software Developer?

AspectComputer System ProgrammerSoftware Developer
CredentialsTypically requires a degree in computer science or related field; certifications like CompTIA or Microsoft may be beneficialSimilar educational background; often holds degrees in computer science, software engineering, or related fields
Work EnvironmentWorks mainly in IT departments, focusing on system-level programming, operating systems, and hardware integrationWorks in various industries, developing applications, web, mobile, or enterprise software
Industry UsageCommonly employed in technology firms, government agencies, and organizations with complex IT infrastructureWidely used across tech companies, startups, and businesses developing consumer or enterprise software

While both roles require programming skills and a similar educational background, Computer System Programmers focus on system-level software and hardware integration, whereas Software Developers create applications and user-facing software solutions.

What are computer system programmers?

Computer system programmers are professionals who write, test, and maintain the software that enables computers and networks to function effectively. They typically work on system-level software such as operating systems, network distribution software, and compilers, ensuring that computer hardware and software work seamlessly together. Their role often involves debugging, updating, and optimizing existing code to improve system performance and security. Computer system programmers may also collaborate with hardware engineers and other IT professionals to integrate new technologies into existing systems.

What are the typical collaboration dynamics between computer system programmers and other IT professionals?

Computer system programmers frequently collaborate with system analysts, network engineers, and software developers to ensure that new or modified systems integrate seamlessly with existing infrastructure. They often participate in meetings to discuss technical requirements, troubleshoot issues alongside IT support teams, and work closely with quality assurance professionals to test system functionality. Strong communication and teamwork skills are essential, as these collaborations are crucial for identifying potential problems early and ensuring project success.
What are popular job titles related to Computer System Programmer jobs in Saint Louis, MO? For Computer System Programmer jobs in Saint Louis, MO, the most frequently searched job titles are:
What job categories do people searching Computer System Programmer jobs in Saint Louis, MO look for? The top searched job categories for Computer System Programmer jobs in Saint Louis, MO are:
Computer System Programmer jobs near you
Test Systems Engineer (Mid) #799

Test Systems Engineer (Mid) #799

Allen Integrated Solutions

Saint Louis, MO • On-site

Full-time

Re-posted 9 days ago

Job description

Test Systems Engineer (Mid)
Location: Springfield, VA
Clearance: Active TS/SCI Required
Overall Assignment Description:
Mid-level Test Systems Engineers perform Application, System and Integration Testing across the National System of Geospatial-intelligence (NSG), Allied System of Geospatial-intelligence (ASG) and Federal Agencies to ensure timely and accurate GEOINT.
Duties include:
  • Performs test and evaluation across the National System of Geospatial-intelligence (NSG), Allied System of Geospatial-intelligence (ASG) and Federal Agencies.
  • Performs testing of applications and application programming interfaces (APIs) in DevOps pipelines utilizing quality assurance measures established by the government and industry best practices.
  • Performs independent integration testing on the system software or hardware to determine the system's compliance with specified requirements.
  • Plans and executes manual tests, and automated test scripts using scripting and programming languages.
  • Supports technical investigations for defects discovered during test activities.

Qualifications
Required:
  • Bachelor's degree or higher in Engineering, Computer Science, Information Technology, Management Information Systems, or related STEM degree program, or 6+ years of experience as a Test Systems Engineer.
  • 6+ years of test management and defect tracking tools.
  • Experience with traditional, Agile, and DevOps development practices and associated testing strategies.
  • TS/SCI clearance adjudication or ability to obtain SCI and pass a polygraph

Desired:
  • Master's degree in Computer Science, Information Technology, Management Information Systems, or related STEM degree program.
  • Experience with three or more of the following; JMeterand, Jenkins, Docker, Postman, Swagger, Nexus, Apigee or GitHub/GitLab (or equivalent software packages), Java, Bash, Curl, XML, JSON, SQL, Python, Javascript, and AWS and C2S.
  • Working knowledge of Model Based Systems Engineering, processes, tools and languages.
  • Working knowledge of Software Development Frameworks.

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