10,000+ Sdn Software Engineer jobs in O'Fallon, ILSet Job AlertWant more jobs like this?We’ll send you jobs that match this search criteria. Get jobs in O'Fallon, IL delivered to your inbox every week.Enter emailSend me The Muse newsletters for the best in career advice and job search tips.Get Jobs!By signing up, you agree to our Terms of Service & Privacy Policy.SDN Software EngineerAt Leidos -O'Fallon, ILPosted on Oct 10View JobSoftware Development Engineer I- NGAAt Esri -St. Louis, MOPosted on Dec 7View JobSoftware Engineer IV- Oracle HCM DeveloperAt Spectrum -St. Louis, MOPosted on Dec 4View JobLead Software Engineer - JavaAt Enterprise Mobility -St. Louis, MO / RemotePosted on Nov 27View JobSoftware Engineer IIIAt Edward Jones -St. Louis, MOPosted on Nov 28View JobSenior Web Application DeveloperAt Siemens Digital Industries Software -St. Louis, MOPosted on Oct 25View JobSenior Systems EngineerAt World Wide Technology -O'Fallon, IL + 8 locationsPosted on Sep 23View JobSDN Software EngineerAt Leidos -O'Fallon, ILPosted on Dec 17View Job2025 Summer Intern: Software EngineerAt Spectrum -St. Louis, MOPosted on Dec 3View JobSoftware Engineer IVAt Edward Jones -St. Louis, MOPosted on Dec 19View JobNetwork Engineer (SDN)At Leidos -O'Fallon, ILPosted on Oct 11View Job2025 Summer Intern: Inside Plant EngineerAt Spectrum -St. Louis, MOPosted on Dec 3View JobSenior Salesforce EngineerAt Edward Jones -St. Louis, MOPosted on Dec 6View JobSoftware EngineerAt Leidos -O'Fallon, ILPosted on Dec 19View JobData Driven Software DeveloperAt Leidos -O'Fallon, ILPosted on Oct 3View JobSenior DevOps Software EngineerAt Leidos -O'Fallon, ILPosted on Oct 25View JobMiddle GDATM Software EngineerAt Leidos -St. Louis, MOPosted on Dec 14View JobMiddle GDATM Software EngineerAt Leidos -St. Louis, MOPosted on Dec 14View JobSystems Engineer / ArchitectAt Leidos -O'Fallon, ILPosted on Dec 12View JobSenior Solution ArchitectAt Leidos -O'Fallon, ILPosted on Nov 9View Job