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1,969 Computer and IT jobs in O'Fallon, IL

Legal Technical Analyst

At Spectrum - St. Louis, MO

Posted on Nov 5

Network Controller

At Leidos - O'Fallon, IL

Posted on Sep 25

IT Support

At Per Scholas - Chicago, IL + 20 locations

Posted on Sep 23

Senior Information Systems Analyst (Computer Sys Security Anlyst 3) - 4275

At Alion Science and Technology - O'Fallon, IL

Posted on Dec 7

Enterprise Architect Director- Google Cloud Platform

At Capgemini - Peoria, IL

Posted on Sep 27

Field Service Technician C

At Hitachi Energy - Remote

Posted on Sep 25

IT Disaster Recovery Manager (Remote)

At CrowdStrike - Remote

Posted on Sep 24

Senior Solutions Consultant

At Zendesk - Remote

Posted on Sep 23

ATC - Storage Technical Solutions Architect (Remote)

At World Wide Technology - Remote

Posted on Sep 23

Client Services Representative - Contract (REMOTE)

At Broadridge - Remote

Posted on Sep 23

Consultant, Product Architect

At Nationwide Insurance - Remote

Posted on Jan 28

Consulente di Viaggi Aziendali - Opportunità Future - Portugal

At Navan - Remote

Posted on Nov 14

2025 Summer Intern: Security Analyst

At Spectrum - Maryland Heights, MO

Posted on Sep 26

Cybersecurity

At Per Scholas - Chicago, IL + 13 locations

Posted on Sep 23

Salesforce Technical Architect

At Capgemini - Shelbyville, TN

Posted on Sep 23

Vulnerability researcher III (Remote, IND)

At CrowdStrike - Remote

Posted on Sep 23

Consultor de Viajes Corporativos - Oportunidades Futuras - Portugal

At Navan - Remote

Posted on Nov 14

Security Advisor, Falcon Complete (Remote)

At CrowdStrike - Remote

Posted on Sep 23

Manager, Training Delivery - SIEM Specialty (Remote)

At CrowdStrike - Remote

Posted on Sep 23

Platform Operations Associate Consultant (Remote, GBR)

At CrowdStrike - Remote

Posted on Sep 23