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Software Developer Contract Jobs in O Fallon, IL

Boeing Company

Software Engineer - Embedded 4

Hazelwood, MO · On-site

$121K - $159K/yr

This posting is for a contract assignment and is not a full-time employment offer with Boeing ... DevOps & DevSecOps - 9+ years' experience developing and deploying C++ software for embedded ...

New

Booz Allen Hamilton

Agentic AI Developer

O Fallon, IL · On-site

$99K - $225K/yr

Experience with software design patterns * Knowledge of embedding models, vector databases, and ... as well as contract-specific affordability and organizational requirements. The projected ...

Cognizant Technologies

C++ developer

Saint Louis, MO

$47.75 - $64.25/hr

Louis, MO Duration: 6+ Months Contract ONLY EAD GC, GC OR USC. Qualifications We are seeking C/C++ developers with Telecom experience. 3+ yrs C/C++ experience Software Documentation experience ...

Infojini Inc

C# Developer

Saint Louis, MO

$47.75 - $64.25/hr

Infojini Consulting is recognized as one of the fastest growing IT services and software ... C# Developer Location: St. Louis, MO Contract : 7 months contract to hire Roles and ...

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Showing results 41-60

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 Aug 16, 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 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.

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 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 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 67% Full Time, 11% Part Time, 4% Temporary, and 18% Contract. Highlights an 90% In-person, and 10% Remote job distribution, with an average salary of $104,330 per year, or $50.2 per hour.

Software Engineer - Embedded 4

Boeing Company

Hazelwood, MO • On-site

$121K - $159K/yr

Other

Posted 3 days ago

New

Boeing rating

8.5

Company rating: 8.5 out of 10

Based on 612 frontline employees who took The Breakroom Quiz

33rd of 540 rated manufacturers

Job description

This posting is for a contract assignment and is not a full-time employment offer with Boeing. Candidates selected for roles will be employed as contract workers through a Boeing approved 3rd party for the duration of the specified project.
Leads the design, development, test, debugging and maintenance of software that is integrated into embedded devices and systems and meets industry, customer, safety and regulation standards. Leads review, analyses, and translation of customer requirements into the design of software products for embedded devices and systems. Reviews code for embedded systems software to run on specific specialized hardware. Leads integration of embedded software with hardware components. Leads analyses, monitoring and improvement of the efficiency and stability of embedded software systems. Leads testing and debugging of software for embedded devices and systems. Researches and leads implementation of current and emerging technologies, tools, frameworks, and changes in regulations relevant to software development and hardware technologies. Advises on software and hardware integration domains. Leads tracking and evaluation of internal and supplier software team performance to ensure product and process compliance to project plans and industry standards. Leads embedded software project management functions.
Required Qualifications:
- Bachelor of Science degree from an accredited course of study, in Computer Engineering, Software Engineering, Computer Science or other technical degree
- Hands-on experience or familiarity with Continuous Integration / Continuous Deployment (CI/CD) software build pipeline techniques and software factories such as DevOps & DevSecOps
- 9+ years' experience developing and deploying C++ software for embedded applications
- This position requires the ability to obtain clearances for Special Access Programs
Preferred Qualifications:
- Ability to work independently and in teams
- Experience working on an Agile team in a collaborative environment
- Experience with the following industry tools or software development techniques:
o RHEL 9+
o Microservice Containers (Docker/POD and Kubernetes)
o CMake
o Git
o CI/CD DevSecOps (Jira, Gitlab, Ansible, & Artifactory)
o Cameo (UML, SysML)
o Automated Testing, SAST, and DAST ( Google Test, Cucumber, Coverity, and SonarQube

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