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Software Developer Jobs in O Fallon, MO (NOW HIRING)

Rapsodo

Senior Software Developer

Saint Louis, MO · On-site

$53 - $70/hr

Powered by Athletes who get it, and Engineers who can do it. Role Purpose This role exists to be the connective tissue between cross-functional teams, translating complex system trade-offs into clear ...

Rapsodo

Senior Software Developer

Saint Louis, MO

$53 - $70/hr

Powered by Athletes who get it, and Engineers who can do it. Role Purpose This role exists to be the connective tissue between cross-functional teams, translating complex system trade-offs into clear ...

Rapsodo

Senior Software Developer

Saint Louis, MO · On-site

$53 - $70/hr

Powered by Athletes who get it, and Engineers who can do it. Role Purpose This role exists to be the connective tissue between cross-functional teams, translating complex system trade-offs into clear ...

Kentro

Software/Web Developer

Saint Louis, MO

Kentro is always interested in connecting with talented Software and Web Developers who are passionate about building scalable applications, developing modern user experiences, and supporting ...

Kentro

Software/Web Developer

Saint Louis, MO · On-site

Kentro is always interested in connecting with talented Software and Web Developers who are passionate about building scalable applications, developing modern user experiences, and supporting ...

Kentro

Software/Web Developer

Saint Louis, MO

Kentro is always interested in connecting with talented Software and Web Developers who are passionate about building scalable applications, developing modern user experiences, and supporting ...

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Showing results 1-20

All JobsSoftware Developer JobsSoftware Developer Jobs in O'Fallon, MO

Software Developer information

See O Fallon, MO salary details

$44.9K

$104.6K

$155.3K

How much do software developer jobs pay per year?

As of Jul 14, 2026, the average yearly pay for software developer in O'Fallon, MO is $104,629.00, according to ZipRecruiter salary data. Most workers in this role earn between $84,200.00 and $121,600.00 per year, depending on experience, location, and employer.

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

To thrive as a Software Developer, you need strong programming skills in languages like Java, Python, or JavaScript, as well as a solid understanding of computer science fundamentals and a relevant degree or equivalent experience. Familiarity with development tools such as Git, integrated development environments (IDEs), and frameworks like React or .NET is typically required, along with knowledge of agile methodologies or certifications. Problem-solving ability, attention to detail, teamwork, and effective communication are essential soft skills that help you excel in collaborative and fast-paced environments. These skills ensure you can build reliable, maintainable software and adapt to evolving project requirements and technologies.

What are some common challenges software developers face when working on team-based projects?

Software developers often encounter challenges such as coordinating with team members across different time zones, managing code integration from multiple contributors, and maintaining clear communication about project requirements. Effective use of version control systems like Git and regular participation in code reviews can help mitigate these issues. Additionally, adapting to evolving project goals and balancing technical debt with feature development are common hurdles that require strong collaboration and problem-solving skills.

What engineer makes $500,000 a year?

Senior software engineers, especially those working in high-cost-of-living areas or at major tech companies, can earn $500,000 or more annually through base salary, bonuses, and stock options. These roles typically require extensive experience, advanced technical skills, and often involve leadership or specialized expertise in areas like machine learning or cloud infrastructure.

What Do Software Developers Do?

Software developers design and create computer software programs and systems for their employer or client. Their job is to apply the principles of engineering, analytics, and computer science toward the development and testing of all kinds of software and applications. On a day-to-day basis, a software developer helps create and test software from start to finish. They discuss and analyze user requests and requirements, then research and brainstorm practical solutions to meet those needs, and determine the best course of action to create the application. As a software developer, you may develop an entirely new program or improve an existing one; you are responsible for a program’s overall framework and must design precise workflow charts that explain to programmers what code is needed for different aspects of the program.

Is AI replacing software developers?

AI is automating certain coding tasks and improving software development processes, but it is not replacing software developers. Developers are needed to design, oversee, and interpret AI tools, as well as to create complex, innovative solutions that require human judgment and expertise.

Is software developer still in demand?

Software developers are in high demand due to ongoing digital transformation across industries, with strong job growth projected in the coming years. Skills in programming languages, such as Java, Python, or JavaScript, and familiarity with development tools and frameworks increase employability in this field.

What work does a software developer do?

A software developer designs, writes, tests, and maintains computer programs and applications. They use programming languages like Java, Python, or C++ and often collaborate with teams to develop software solutions that meet user needs and specifications.

What is the difference between Software Developer vs Software Engineer?

AspectSoftware DeveloperSoftware Engineer
CredentialsBachelor's degree in CS or related field; coding certificationsBachelor's or higher in CS or Software Engineering; certifications may vary
Work EnvironmentDevelops, tests, and maintains software applicationsDesigns and develops software systems; often involved in architecture
Industry UsageCommonly used in tech companies, startups, and IT firmsUsed interchangeably with Software Developer in many organizations

While the roles often overlap, Software Developers focus on coding and building applications, whereas Software Engineers typically work on designing and architecting complex systems. Both roles require similar credentials and are integral to software creation, but their scope and responsibilities can differ based on project size and company structure.

What is a Software Developer?

A Software Developer is a professional who designs, builds, tests, and maintains computer programs or applications. They use programming languages to create software solutions that meet user needs, whether for desktop, mobile, or web platforms. Software Developers work closely with other team members such as designers, analysts, and testers to ensure the final product is functional, reliable, and user-friendly. Their responsibilities can range from writing code and fixing bugs to collaborating on system architecture and deploying updates.
More about Software Developer jobs
What are the most commonly searched types of Software Developer jobs in O'Fallon, MO? The most popular types of Software Developer jobs in O'Fallon, MO are:
What are popular job titles related to Software Developer jobs in O'Fallon, MO? For Software Developer jobs in O'Fallon, MO, the most frequently searched job titles are:
What cities near O'Fallon, MO are hiring for Software Developer jobs? Cities near O'Fallon, MO with the most Software Developer job openings:
Software Developer jobs near you
Infographic showing various Software Developer job openings in O'Fallon, MO as of July 2026, with employment types broken down into 85% Full Time, 3% Part Time, 1% Temporary, and 11% Contract. Highlights an 82% Physical, 3% Hybrid, and 15% Remote job distribution, with an average salary of $104,629 per year, or $50.3 per hour.
Software Engineer-Developer 2

Software Engineer-Developer 2

Indotronix International Corporation

Maryland Heights, MO • On-site

$50/hr

Contractor

Posted 26 days ago

Job description

Indotronix is seeking an :Software Engineer-Developer 2
Location :Maryland Heights, MO
Bachelor’s Degree
Active U.S. Secret Clearance with the ability to obtain TS/SCI
Ability to meet DoD 8140 Program Foundational qualifications
Active Secret Must

Job Description

Support the development, maintenance, and enhancement of software applications in a secure environment. Troubleshoot technical issues, analyze user feedback, conduct software research and development activities, and implement modern technologies, tools, and frameworks to support business objectives.

Key Responsibilities

  • Handle user inquiries and troubleshoot technical issues.

  • Analyze user feedback and recommend software improvements.

  • Execute and document software research and development projects.

  • Develop, maintain, and support applications using VB, C#, .NET, and .NET Framework technologies.

  • Develop and maintain database-driven applications.

  • Implement current and emerging software development tools, technologies, and frameworks.

  • Participate in testing, debugging, and software quality initiatives.

  • Support Agile development processes and continuous improvement efforts.

  • Collaborate with cross-functional teams to deliver software solutions.

Required Qualifications

  • Bachelor's degree.

  • Active U.S. Secret Clearance with ability to obtain TS/SCI.

  • Ability to meet DoD 8140 foundational requirements.

  • 1+ year of experience with VB, C#, .NET, and/or .NET Framework.

  • 1+ year of experience with SQL or other relational databases.

  • Strong analytical and problem-solving skills.

Preferred Qualifications

  • 2+ years of experience with VB, C#, .NET, and/or .NET Framework.

  • 2+ years of experience with SQL or other relational databases.

  • Experience with .NET Framework (WinForms).

  • Experience with SOAP and REST web services.

  • Experience with Windows 10/11 and Windows Server environments.

  • Experience with Azure DevOps, Jira, and CI/CD pipelines.

  • Experience with unit testing frameworks such as xUnit, JUnit, NUnit, or MSTest.

  • Knowledge of C++.

  • Agile development experience.

  • Strong mathematical and analytical skills.

  • CompTIA Security+ certification.

Education

Bachelor's degree in Computer Science, Engineering, Information Technology, Mathematics, Physics, Data Science, or a related technical field, or an equivalent combination of education and experience.

Indotronix logo

About Indotronix

Sourced by ZipRecruiter

In 1986, Indotronix established itself in the staffing space. 22 years later, Avani entered the scene, offering consulting and technology development. Finally, in 2016, the two joined forces to begin delivering talent across all areas, from Staffing to Consulting to unique platform development.

Industry

Recruiting and staffing services

Company size

1,001 - 5,000 Employees

Headquarters location

Rochester, NY, US

View All Indotronix Jobs