Software Developer Jobs in O Fallon, IL

1-15 of 131 Jobs

Software Engineer

  • O Fallon, IL
  • 15 hours ago
  • O Fallon, IL
  • 15 hours ago

ECS is seeking a Software Engineer to work in our O'Fallon, IL office. Possesses and applies comprehensive knowledge of developing, creating, and modifying general computer applications software...

Software Developer

  • O Fallon, IL
  • 15 hours ago
  • O Fallon, IL
  • 15 hours ago

ECS is seeking a Software Developer to work in our O'Fallon, IL office....

Tableau Developer

  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 1 day ago
  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 1 day ago

Location : Mohali City : Mohali State : Punjab (IN-PB) Country : India (IN) Requisition Number : 40765 Role Purpose : Associate Manager Controls Analytics will be responsible for building Tableau...

Senior Software Engineer - SQL/Java

  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 1 day ago
  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 1 day ago

Overview Enterprise Mobility is the worlds largest car rental operator and an industry leader in mobility and technology. Were one of the top global travel companies, ranking ahead of many...

Remote Work

Software Developer II - Change Data Capture (CDC)

  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 1 day ago
  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 1 day ago

Company Overview: For more than 50 years, NISC has worked to develop technology solutions for our customers, who we call our "Members". Those Members are comprised primarily of 960+ utilities and...

Position Summary Role Overview: As a Full-stack Software Engineer, you will actively engage in your engineering craft, taking a hands-on approach to multiple high-visibility projects. Your...

Senior Software Engineer Siebel

  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 2 days ago
  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 2 days ago

This is a remote position; however, the candidate must reside within 30 miles of one of the following locations: Boston, MA; San Francisco Bay Area, CA; Dallas, TX; Salt Lake City, UT; Seattle,...

Power BI Developer

  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 2 days ago
  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 2 days ago

Seeking a Power BI Developer who supports a business line within the People Analytics function by developing scalable, self-sustaining Power BI dashboards and reports using HR-related data (e.g.,...

Software Developer NEW

  • O Fallon, IL
  • 2 days ago
  • O Fallon, IL
  • 2 days ago

Software Developer CACI Today Secret Unspecified Unspecified IT - Software O Fallon, IL (ON-SITE/OFFICE) Software Developer Job Category: Information Technology Time Type: Full time Minimum Clearance...

Full Stack Developer

  • O Fallon, IL
  • 2 days ago
  • O Fallon, IL
  • 2 days ago

Responsible for activities associated with delivery of software solutions associated with customer-defined systems and software projects by working in close collaboration with software developers/engineers...

Programmer Analyst (Mid-Level or Senior)

  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 2 days ago
  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 2 days ago

Programmer Analyst (Mid-Level or Senior) Company: The Boeing Company The Boeing Company is looking for a highly experienced and detail-oriented Programmer Analyst (Mid-Level or Senior) to join the...

Applied Analytics Developer

  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 2 days ago
  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 2 days ago

Salary Not Available Applied Analytics Developer 9th Way Insignia Location: Saint Louis, MO - 63123 Positions available: 1 Job #: ... Source: 9th Way Insignia Posted: 7/22/2025 Expires: 1/18/2026...

Developer - IT Lead to Order

  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 2 days ago
  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 2 days ago

+ Ensuring product quality and timeliness of work, providing advice and guidance, resolving problems to meet engineering guidelines + Provide follow on support for post-production release features...

.NET Developer

  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 3 days ago
  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 3 days ago

.NET Developer** **Location** Remote **Responsibilities:** 1. **Software Development:** 2. Adhering to defined standards and design principles. o Implement design, develop high quality code, and...

Camel K Developer

  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 3 days ago
  • Saint Louis, MO (15 miles from O Fallon, IL)
  • 3 days ago

Kforce has a client in Saint Louis, MO that is seeking a Camel K Developer. Responsibilities Analyze and migrate existing ETL workflows and transformations from MuleSoft to Apache Camel K Develop...

Demographic Data for O Fallon, IL

Moving to O Fallon, IL? Find some basic demographic data about O Fallon, IL below.


Local
National
36,068
805
Medium

Software Developer Online Courses and Training Opportunities

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Agile Software Developer Nanodegree Program
Learn best practices for using an Agile framework to build better products faster and more efficiently. Our exclusive content is co-created and continually refined with industry leaders. Each...
Open Source Software Development: Linux for Developers
Start your open source software (OSS) adventure today by learning the key concepts of developing open source software and how to work productively in a Linux environment. Open source software...
Discover Software Course
In this course, you will gain practical skills in software applications, explore word processing with Google Docs, delve into artificial intelligence using Google Translate, master logic and...

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Salary for Software Developer Jobs in O Fallon, IL

Estimated salary range based on data from US Bureau of Labor Statistics (BLS) and iHire research efforts.

Highest Education Level

Software Developers in O Fallon, IL offer the following education background
Bachelor's Degree
47.3%
Master's Degree
35.7%
Associate's Degree
6.5%
Vocational Degree or Certification
4.4%
High School or GED
2.9%
Doctorate Degree
2.5%
Some College
0.4%
Some High School
0.2%