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Software Developer Contract Jobs in O Fallon, IL

Job #214351 Chipton-Ross is seeking a Software Engineer-Developer 4 for a contract opportunity in Berkeley, MO. 100% onsite BASIC QUALIFICATIONS (REQUIRED SKILLS/EXPERIENCE) * Active Secret Security ...

Data Engineer Software Developer

Shiloh, IL · On-site

$106K - $128K/yr

The Leidos Digital Modernization Group seeks a Data Engineer Software Developer for the Global Solution Management - Operations II (GSM-O II) contract, under the Global Automations & Intelligent ...

Data Engineer Software Developer

Shiloh, IL · On-site

$106K - $128K/yr

The Leidos Digital Modernization Group seeks a Data Engineer Software Developer for the Global Solution Management - Operations II (GSM-O II) contract, under the Global Automations & Intelligent ...

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Showing results 1-20

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 Jun 11, 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 in the Software Developer Contract position, and why are they important?

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 job?

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:
Experienced Software Developer

Experienced Software Developer

Apex Systems

Hazelwood, MO • On-site

Other

Medical, Dental, Vision, Life, Retirement

This job post has expired today. Applications are no longer accepted.


Job description

Job#: 3022437
Job Description:
Apex Systems is seeking a Experienced Software Developer based out of Hazelwood, Missouri.
Experienced Software Developer
Location: Hazelwood, Missouri (Hybrid)
Employment Type: Contract
Role Overview
We are seeking an Experienced Software Developer to join our Manufacturing Quality Information Technology Team. A successful candidate will bring relevant and practical software engineering experience to support the full software life cycle. This position is responsible for the full stack development and maintenance of multiple existing Manufacturing Quality Enterprise applications.
Key Responsibilities
  • Stabilize and secure multiple applications through development, deployment, and maintenance of Java/Oracle systems and other technologies.
  • Ensure system security compliance and remediate technical debt.
  • Manage system changes and configurations, and provide production support across the enterprise to resolve software and infrastructure issues.
  • Support regulatory compliance and quality audits.
  • Continuously learn system functionality, business processes, and new technologies.
  • Execute IT strategies and objectives related to Cloud migration, DevSecOps, Agile, and AI Software Engineering.
Required Qualifications
Experience:
  • 5+ years of experience in software development, deployment, maintenance, and support.
  • 3+ years of experience in data integration development and maintenance.
  • 3+ years of experience in a Linux/Unix environment.
  • 3+ years of experience in Java.
  • 3+ years of experience in Oracle PL/SQL.
  • 1+ years of experience in an agile work environment.
  • 1+ years of professional experience in AI Software Engineering & Automation.

Additional Requirements:
  • This position requires a U.S. Person for purposes of Export Compliance.
  • Candidate must be eligible to obtain a security clearance.
Preferred Qualifications
  • Experience working with WebSphere and Spring Boot.
  • Experience with system integration toolsets and methodologies (e.g., ETL, Autosys, Pub/Sub, JSON, RESTful Web Services, Perl).
  • Experience with common industry development tools such as Visual Studio, JetBrains Suite, Git, GitLab, Azure DevOps (ADO), and JIRA.
  • Experience working with AppScan, Coverity Code Security Scans, and CyberArk.
Work Environment
This is a full-time, 12-month contract role. The position follows a hybrid work model, requiring the selected candidate to work onsite on certain days. Potential candidates must be willing to relocate prior to the contract start if out-of-state. The standard schedule is first shift.
If you feel that you meet the qualifications and criteria outlined above, please submit your resume to .
Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRateds Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico.
Everforth Apex uses a virtual recruiter as part of the application process. Click for more details. By applying for this job, you agree to receive calls, AI-generated calls, text messages, or emails from Everforth Apex and its affiliates, and contracted partners. Frequency varies for text messages. Message and data rates may apply. Carriers are not liable for delayed or undelivered messages. You can reply STOP to cancel and HELP for help. You can access our privacy policy at
Everforth Apex Benefits Overview: Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our 'Welcome Packet' as well, which an Everforth Apex team member can provide.
Everforth Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.
If you require an accommodation under the Americans with Disabilities Act to participate in an interview with a virtual recruiter or to use our website for a search or application, please contact our Benefits Department at or . Please note that this contact information is strictly to be used for medical ADA accommodations and that no other inquiries will be answered.
UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Everforth Apex Systems.