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Software Developer Contract Jobs in O Fallon, IL

CACI

Software Engineer

Saint Louis, MO

Software Engineer Job Category: Engineering Time Type: Full time Minimum Clearance Required to ... and contract wage rates, relevant prior work experience, specific skills and competencies ...

CACI

Software Engineer

Saint Louis, MO · On-site

Software Engineer Job Category: Engineering Time Type: Full time Minimum Clearance Required to ... and contract wage rates, relevant prior work experience, specific skills and competencies ...

CACI

Junior Application Developer

Saint Louis, MO

$53K - $106K/yr

Contribute to modern web-based software that directly supports national security missions. Gain ... and contract wage rates, relevant prior work experience, specific skills and competencies ...

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Showing results 21-40

All JobsSoftware Developer Contract JobsSoftware Developer Contract Jobs in O'Fallon, IL

Software Developer Contract information

See O Fallon, IL salary details

$44.8K

$104.3K

$154.8K

How much do software developer contract jobs pay per year?

As of Sep 6, 2026, the average yearly pay for software developer contract in O'Fallon, IL is $104,330.00, according to ZipRecruiter salary data. Most workers in this role earn between $84,000.00 and $121,300.00 per year, depending on experience, location, and employer.

What is a software developer contract?

A Software Developer Contract job is a temporary or project-based position where a developer is hired for a specific duration, typically through a contract agreement. Contractors may work independently, for an agency, or directly with a company to develop, test, and maintain software applications. These roles often offer flexibility but may not include benefits like health insurance or paid time off. Contract developers are usually paid hourly or per project and may work remotely or on-site depending on the employer's needs.

What are the key skills and qualifications needed to thrive as a software developer contract?

A successful Software Developer Contract requires strong programming abilities, solid knowledge of software development methodologies, and relevant project or domain expertise, often supported by a degree in computer science or a related field. Familiarity with languages like Java, Python, or JavaScript, as well as tools such as Git, Agile frameworks, and certification in areas like AWS or Scrum, is highly valued. Excellent problem-solving skills, adaptability, effective communication, and an ability to quickly integrate into new teams are crucial soft skills. These competencies enable contract developers to deliver high-quality solutions while efficiently navigating diverse projects and rapidly changing work environments.

What are the typical work arrangements and expectations for contract software developers?

Contract Software Developers are usually hired for specific projects or defined timeframes, which can range from several weeks to multiple months, often working remotely or on-site depending on client needs. They are expected to quickly understand project requirements, deliver code efficiently, and collaborate with both in-house teams and other contractors, maintaining flexibility to adapt to different workflows and tools. Because contract roles may not include the same onboarding experience as permanent positions, self-motivation and strong independent work habits are important. This work arrangement provides valuable exposure to various industries and technologies, often expanding a developer’s professional network and enhancing career versatility.

Are software developers still in high demand?

Yes, software developers remain in high demand due to ongoing digital transformation across industries, the need for new applications, and the growth of cloud computing and cybersecurity. Strong programming skills in languages like Java, Python, or JavaScript, along with experience in agile environments, enhance job prospects for contract software developers.

How much do contract software developers make?

Contract software developers typically earn between $50 and $150 per hour, depending on experience, location, and project complexity. Rates can vary based on skills such as proficiency in specific programming languages, frameworks, and the duration of the contract.

What are the most commonly searched types of Software Developer jobs in O'Fallon, IL?

The most popular types of Software Developer jobs in O'Fallon, IL are:

What are popular job titles related to Software Developer Contract jobs in O'Fallon, IL?

For Software Developer Contract jobs in O'Fallon, IL, the most frequently searched job titles are:

What cities near O'Fallon, IL are hiring for Software Developer Contract jobs?

Cities near O'Fallon, IL with the most Software Developer Contract job openings:

Software Developer Contract jobs near you
Infographic showing various Software Developer Contract job openings in O'Fallon, IL as of August 2026, with employment types broken down into 74% Full Time, and 26% Contract. Highlights an 100% In-person job distribution, with an average salary of $104,330 per year, or $50.2 per hour.

***2 SOFTWARE DEVELOPERS - EDUCATION***

Matrix Systems Group

Saint Louis, MO • On-site

Full-time

Re-posted 8 days ago

Job description

Company Description

Matrix Systems Group is an Information Technology and Services company that places talented professionals in long-term consulting roles in a variety of industries. Some of the titles we look for include Developers, Project Managers, Business Analysts and Network Administrators. We occasionally have permanent positions on our team as well.

Why Work for Matrix Systems Group?

 - We typically place our people in long-term contracts - 1-2 years some with options for renewal

 - You choose the type of employment you prefer - direct (W2) or contractor (1099) (note that this may depend on the specific contract being filled)

 - No micromanagement!!

Job Description

SOFTWARE DEVELOPER - The selected candidate will develop and maintain existing and future data systems pertaining to Special Education. Possible projects include a re-write of the Special Education Database System, assisting with the I-STAR development program and other projects. This work will enable policymakers, educators and others to access information related to Special Education more easily and ultimately will improve learner outcomes. This assignment is expected begin in December - January and last for 2-3 years.

This job might be for you if:

  • You have at least 3 years of experience with each of the following: ASP.NET, VB.NET and SQL Server
  • You have at least 1 year of experience with each of the following: Javascript, and either Crystal Reports or SSRS
  • You have experience as a front-end developer supporting a large application with a diverse user base
  • You have experience with educational data systems (preferred but not required


You can complete our quick and mobile-friendly application process by clicking on "I'm Interested." When you apply please make sure that your current / correct contact information is on your resume so we can reach you. If this opportunity is not what you are looking for at this time, please feel free to refer someone you know.

We appreciate your interest in Matrix Systems Group!


Qualifications

When you apply, please include information on the following:

1) Will you be available to work M-F in Springfield IL and when will you become available?

2) Are you working on a Corp2Corp arrangement? If so please provide contact information for your employer.  We may be able to do a subcontractor arrangement for the right candidate.

3) You approximate salary requirements for working in Springfield, IL.  Or if doing C2C let me know if I need to discuss with your employer.


Also let me know if you have any questions. Thank you!

Apply