System jobs in o'fallon USA
125 system jobs found in o'fallon: showing 1 - 50
Lead Software Engineer (c/c++)
Company: Mastercard |
for you to join Mastercard on the global credit card authorization team. The system facilitates billions of transactions among issuers, acquirers..., and service providers. You will have the chance to lead projects that enhance this system each releaseLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 19 Jul 2026
Shift Lead
Company: Walgreens |
maintenance by ensuring clean, neat, orderly store condition and appearance, including requesting store or system repairsLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 19 Jul 2026
Channel Projects, Order Specialist - Inside Parameters
Company: Schneider Electric |
of services and system studies; freight claims; post-delivery quality issues; and claims resolution. This customer-facing roleLocation: O'Fallon, MO, USA
| Salary: US$68000 - 102000 per year | Date posted: 18 Jul 2026
Search Consultant/remote Recruiter
Company: GPAC |
at any phone number or email you provide, including via text message using an automated dialing system and/or artificialLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 18 Jul 2026
Software Development Engineer Ii
Company: Mastercard |
. Support system performance optimization, scalability improvements, and reliability initiatives. Design applicationsLocation: O'Fallon, MO, USA
| Salary: US$92000 - 147000 per year | Date posted: 18 Jul 2026
Manager, Business Analysis
Company: Mastercard |
development lifecycle, APIs, platform architecture, system integrations, and enterprise technology ecosystems ExperienceLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 18 Jul 2026
Lead Software Development Engineer
Company: Mastercard |
messaging patterns. - Drive adoption of asynchronous processing and distributed system design best practices. Cloud Native... experience. - 3+ years leading large-scale distributed system initiatives. - Expert-level Java, Spring Boot, REST APIsLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 18 Jul 2026
Lead Software Engineer
Company: US Tech Solutions |
specifications, test plans, and deployment strategies. Performs system maintenance, incident management, root cause analysisLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 17 Jul 2026
Citizens First Specialist
Company: O’Fallon |
services, assisting with citizen concerns/complaints and monitoring work order progress in GovQA computer system to ensure... and health files; - entering new hire data into Munis (Finance computer system), UKG (Human Resources computer systemLocation: O'Fallon, MO, USA
| Salary: US$23.56 - 35.34 per hour | Date posted: 17 Jul 2026
Senior Software Engineer
Company: Mastercard |
to create maintainable and extensible testing and validation systems Contribute to system architecture discussions, ensuring... solutions are testable, observable, secure, and performant Translate business and system requirements into well-designedLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 17 Jul 2026
Senior Product Manager - Technical
Company: Mastercard |
, scalability, resiliency, and system performance considerations. Familiarity with payments messages (ISO 8583/20022) IdentifiesLocation: O'Fallon, MO, USA
| Salary: US$104000 - 177000 per year | Date posted: 17 Jul 2026
Senior Software Engineer
Company: Mastercard |
by identifying bottlenecks, validating system behavior under load, and supporting tuning efforts. Apply secure coding practices... knowledge of performance engineering concepts, including load testing, bottleneck identification, and system behavior analysisLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 17 Jul 2026
On The Run - Store Manager
Company: Wallis Companies |
to communicate in person and on telephone system X Working conditions: Convenience Store X DisclaimerLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 16 Jul 2026
Dirt Cheap - Assistant Store Manager
Company: Wallis Companies |
to communicate in person and on telephone system X Working conditions: Convenience Store X DisclaimerLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 16 Jul 2026
Shipping Lead
Company: Merric Millwork & Seating |
management system, acquiring additional stock as required, and distributing items from stock to fulfill requisitions. Keeps teamLocation: O'Fallon, MO, USA
| Salary: US$22 - 26 per hour | Date posted: 16 Jul 2026
Senior Site Reliability Engineer
Company: Mastercard |
response processes. Troubleshoot and resolve routine and some complex system issues, escalating when necessary to maintain... system health. Contribute to documentation, knowledge sharing, and best practices to enhance team operational proceduresLocation: O'Fallon, MO, USA
| Salary: US$96000 - 163000 per year | Date posted: 16 Jul 2026
Pharmacy Technician
Company: CVS Health |
the health care system and their personal health care by improving access, lowering costs and being a trusted partnerLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 16 Jul 2026
Senior Vice President, Services Enterprise Architecture
Company: Mastercard |
strategies, and operates the architecture system (patterns, policyascode, alignment mechanisms) that enables thousandsLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 16 Jul 2026
Manager Software Engineering
Company: Mastercard |
design principles, algorithms, data structures, and system design. Lead architecture and design discussions while balancing... operational events. Drive improvements in system resiliency, availability, disaster recovery readiness, and operationalLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 16 Jul 2026
Hvac Estimator
Company: GPAC |
you regarding gpac's services at any phone number or email you provide, including via text message using an automated dialing systemLocation: O'Fallon, MO, USA
| Salary: US$70000 - 125000 per year | Date posted: 15 Jul 2026
Lead Software Engineer - Level 6
Company: ICONMA |
, and deployment strategies. Performs system maintenance, incident management, root cause analysis, and problem resolution in complexLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 15 Jul 2026
Security Officer Patrol Specialist
Company: Allied Universal |
by law. For more information: . If you have difficulty using the online system and require an alternate methodLocation: O'Fallon, MO, USA
| Salary: US$18 per hour | Date posted: 15 Jul 2026
Manager, Product Management
Company: Mastercard |
flows, and system architecture at a conceptual level. Ability to analyze data to inform product decisions. ExperienceLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 15 Jul 2026
Senior Site Reliability Engineer
Company: Mastercard |
response processes. Troubleshoot and resolve routine and some complex system issues, escalating when necessary to maintain... system health. Contribute to documentation, knowledge sharing, and best practices to enhance team operational proceduresLocation: O'Fallon, MO, USA
| Salary: US$96000 - 163000 per year | Date posted: 15 Jul 2026
Patient Experience Partner- Progress West
Company: BJC HealthCare |
BJC HealthCare system? The focus of this role will be on the patient, patient family and the employee, (interactionLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 14 Jul 2026
Vice President, Software Engineering - Dmp
Company: Mastercard |
processing across Decision Managements intelligent system on behalf of a suite of market-facing products. This is a hybridLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 13 Jul 2026
Maintenance Mechanic Water And Sewer
Company: City of O'Fallon |
and wastewater system maintenance. Skill in using specialized equipment, hand tools, power tools, computers, and mobile devicesLocation: O'Fallon, MO, USA
| Salary: US$27.28 - 28 per hour | Date posted: 12 Jul 2026
Customer Sales Consultant
Company: Lou Fusz Subaru of O'Fallon |
and ability to follow a system or discipline for success Excellent written and verbal communication skills The abilityLocation: O'Fallon, MO, USA
| Salary: US$3000 per month | Date posted: 11 Jul 2026
Customer Sales Consultant
Company: Lou Fusz Automotive Network |
and ability to follow a system or discipline for success Excellent written and verbal communication skills The abilityLocation: O'Fallon, MO, USA
| Salary: US$3000 per month | Date posted: 11 Jul 2026
Maintenance Mechanic Water And Sewer
Company: O’Fallon |
and wastewater system maintenance. Skill in using specialized equipment, hand tools, power tools, computers, and mobile devicesLocation: O'Fallon, MO, USA
| Salary: US$27.28 - 28 per hour | Date posted: 11 Jul 2026
Director, Project Management (ai)
Company: Mastercard |
or program data to support business decisions and drive continuous improvement, including process design, system optimizationLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 11 Jul 2026
Manager, New Hire Services & Onboarding Process Design & Optimization Lead (gbsc People & Capability)
Company: Mastercard |
system enhancements, intake model changes, and operating model evolution. Partner with Product & Engineering to optimizeLocation: O'Fallon, MO, USA
| Salary: US$112000 - 179000 per year | Date posted: 10 Jul 2026
Quality Inspector / Romer Arm Operator
Company: WB Industries |
of blueprint reading, geometric tolerancing, and inspection documentation. Experience working within an AS9100 quality systemLocation: O'Fallon, MO, USA
| Salary: US$28 - 30 per hour | Date posted: 09 Jul 2026
Lead Security Issue Manager
Company: Mastercard |
stakeholders. In this position, you will: - Perform quality control over new issues submitted into the system - EngageLocation: O'Fallon, MO, USA
| Salary: US$109000 - 180000 per year | Date posted: 09 Jul 2026
Vice President, Software Engineering - Dmp
Company: Mastercard |
processing across Decision Managements intelligent system on behalf of a suite of market-facing products. This is a hybridLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 09 Jul 2026
Lpn/rn Pediatric Home Care Premium Overnights $3000 Sign On Bonus
Company: Phoenix Home Care |
of someone's support system during the moments that matter most Pay & Perks Competitive pay based on experience Weekly pay Full-TimeLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 08 Jul 2026
Lpn/rn Pediatric Home Care Weekends
Company: Phoenix Home Care |
of someone's support system during the moments that matter most Pay & Perks Competitive pay based on experience Weekly pay Full-TimeLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 08 Jul 2026
Flight Coordinator I
Company: Air Evac Lifeteam |
(CAD) system. The Flight Coordinator is the primary connection between the Flight Team and the resources they require... appropriate job-related tools to include but not limited to the utilization of a Computer Aided Dispatch (CAD) system, mappingLocation: O'Fallon, MO, USA
| Salary: US$20.5 - 22.5 per hour | Date posted: 08 Jul 2026
Manager, Emergency Management, Environmental Health & Safety
Company: BJC HealthCare |
departments, BJC system partners, public safety agencies, emergency medical services, emergency management agencies, healthcareLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 08 Jul 2026
Lead Software Engineer
Company: Mastercard |
contribute hands-on development, drive testing strategy, improve system design and testability, and mentor engineers to elevate..., system, and User Acceptance Testing (UAT) activities. Analyze logs, traces, and system behavior to validate functionalityLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 08 Jul 2026
Manager, Software Engineering
Company: Mastercard |
, scalability analysis, and system tuning. Ensure applications are designed and optimized for high-volume, low-latency transaction.... Partner with engineers to identify and eliminate performance bottlenecks through effective system design and algorithmLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 08 Jul 2026
Senior Software Engineer
Company: Mastercard |
performance, conduct scalability assessments, identify bottlenecks, and implement performance tuning strategies to optimize system... observability, monitoring, logging, and operational readiness capabilities to support system reliability, supportabilityLocation: O'Fallon, MO, USA
| Salary: US$115000 - 184000 per year | Date posted: 08 Jul 2026
Software Engineer Ii
Company: Mastercard |
application and system performance, identifying opportunities for optimization and scalability improvements. Troubleshoot complexLocation: O'Fallon, MO, USA
| Salary: US$92000 - 147000 per year | Date posted: 07 Jul 2026
Medical Laboratory Scientist - Mls Ii
Company: BJC HealthCare |
the laboratory computer system accurately, meeting published turn around times for routine testing and statsLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 07 Jul 2026
Now Hiring It And Telecom Field Technicians
Company: HARDY INDUSTRIES |
you might be installing an operating system, the next you're drilling through walls and running structured cabling across entire buildingsLocation: O'Fallon, MO, USA
| Salary: US$18 - 25 per hour | Date posted: 06 Jul 2026
Manager, Advertising Technology & Revenue Enablement
Company: Mastercard |
stories and work with technology teams and developers to test, validate and implement Collaborate with system engineering... testing management and business inquiries. Understand your team's technologies and be able to evaluate system designsLocation: O'Fallon, MO, USA
| Salary: US$109000 - 180000 per year | Date posted: 06 Jul 2026
Lpn/rn Pediatric Home Care
Company: Phoenix Home Care |
of someone's support system during the moments that matter most Pay & Perks Competitive pay based on experience Weekly pay Full-TimeLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 06 Jul 2026
Lab Associate Ii - Days
Company: BJC HealthCare |
in appropriate system. Perform phlebotomy, positive patient identification, and positive patient interaction, proper collectionLocation: O'Fallon, MO, USA
| Salary: unspecified | Date posted: 05 Jul 2026
Automotive Technician / Mechanic | Up To $50/hr* & Weekends Off | Weldon Spring
Company: Christian Brothers Automotive |
Available Through The CBA Flywheel Learning System Job Description Job Title: Automotive Technician / Mechanic Location: 100Location: O'Fallon, MO, USA
| Salary: US$50 per hour | Date posted: 04 Jul 2026
Automotive Service Manager | Up To $125k Annually* & Weekends Off | Weldon Spring
Company: Christian Brothers Automotive |
For Awesome Swag & Rewards Continuous Training Available Through The CBA Flywheel Learning System Future Franchise Leadership