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Software jobs in o'fallon USA

115 software jobs found in o'fallon: showing 51 - 100

Lead Site Reliability Engineer
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$122000 - 207000 per year | Date posted: 01 Jul 2026
during the application build phase in software run principals that includes operational design, automation, capacity planning
Site Reliability Engineer Ii
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$76000 - 127000 per year | Date posted: 01 Jul 2026
in software run principles that include operational design, automation, capacity planning, and monitoring that leads to fault... faster, more reliable software delivery and operations. Troubleshooting - Capability to systematically identify, diagnose
Senior Site Reliability Engineer
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$163000 per year | Date posted: 01 Jul 2026
for changes that improve reliability and velocity. Support the application CI/CD pipeline for promoting software into higher..., pipeline management, and software design. Systematic problem-solving approach, coupled with strong communication skills
Senior Site Reliability Engineer
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$96000 - 163000 per year | Date posted: 01 Jul 2026
the application CI/CD pipeline for promoting software into higher environments through validation and operational gating... with algorithms, data structures, scripting, pipeline management, and software design. Systematic problem-solving approach, coupled
Senior Site Reliability Engineer
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$96000 - 163000 per year | Date posted: 01 Jul 2026
in software run principles that include operational design, automation, capacity planning, and monitoring that leads to fault..., to enable faster, more reliable software delivery and operations. Troubleshooting - Capability to systematically identify
Lead Site Reliability Engineer
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$122000 - 207000 per year | Date posted: 01 Jul 2026
during the application build phase in software run principals that includes operational design, automation, capacity planning
Site Reliability Engineer Ii
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$76000 - 127000 per year | Date posted: 01 Jul 2026
in software run principles that include operational design, automation, capacity planning, and monitoring that leads to fault..., more reliable software delivery and operations. Troubleshooting - Capability to systematically identify, diagnose, and resolve
Systems Administrator
Company: O’Fallon |

Location: O'Fallon, MO, USA

| Salary: US$72404.8 - 90521.6 per year | Date posted: 01 Jul 2026
, and other technology assets Install, configure, and maintain software applications Implement and monitor network security detection tools... and software Install, maintain, troubleshoot, and repair telecommunications equipment Provide help desk support to end users
Ai Pdlc Enablement Lead
Company: Kforce |

Location: O'Fallon, MO, USA

| Salary: US$70 - 80 per hour | Date posted: 30 Jun 2026
, including data privacy, security, and compliance 10+ years of experience in software development, platform engineering
Commercial Hvac Estimator
Company: GPAC |

Location: O'Fallon, MO, USA

| Salary: US$120000 per year | Date posted: 29 Jun 2026
, organized documentation, and estimating software literacy Coachable, detail-oriented, team-focused Why Its a Great
Software Engineer Ii
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$92000 - 147000 per year | Date posted: 29 Jun 2026
potential. Title and Summary Software Engineer II Overview: Mastercards Global Credit Authorization team is seeking... a Software Engineer II (C/C++) who is passionate about building high-performance, mission-critical systems that operate at global
Assembly
Company: O'Fallon Casting |

Location: O'Fallon, MO, USA

| Salary: US$22.5 - 29.1 per hour | Date posted: 26 Jun 2026
where accuracy is paramount, and enter all required information into the Company software in a timely manner. 8. Shall attend... job. Must have average working knowledge of personal computers and related software.
New Mortgage Loan Officer Turn Your Network Into Real Income
Company: Satori Mortgage |

Location: O'Fallon, MO, USA

| Salary: US$50000 - 250000 per year | Date posted: 26 Jun 2026
: how to run a file start to finish, the lender options, the software. You'll get proven prospecting systems to turn your network
Lead Software Engineer
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 26 Jun 2026
potential. Title and Summary Lead Software Engineer Our Purpose We connect and power an inclusive digital economy... for you! Role As a Lead Software Engineer, you will be responsible for: Design and develop secure, reliable, and scalable
Manager, Software Engineering
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 26 Jun 2026
potential. Title and Summary Manager, Software Engineering Our Purpose We connect and power an inclusive digital economy... goals Role As a Manager, Software Engineering, you will provide strong technical and people leadership, drive high
Site Reliability Engineer Ii
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$76000 - 127000 per year | Date posted: 26 Jun 2026
in software run principles that include operational design, automation, capacity planning, and monitoring that leads to fault..., more reliable software delivery and operations. Troubleshooting - Capability to systematically identify, diagnose, and resolve
Senior Site Reliability Engineer
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$96000 - 163000 per year | Date posted: 26 Jun 2026
in software run principles that include operational design, automation, capacity planning, and monitoring that leads to fault..., to enable faster, more reliable software delivery and operations. Troubleshooting - Capability to systematically identify
Msp Level 3 Technician
Company: TeamLogic IT, Lake St Louis, MO |

Location: O'Fallon, MO, USA

| Salary: US$75000 - 105000 per year | Date posted: 24 Jun 2026
support for a variety of IT systems, including servers, networks, and software applications. Troubleshoot and resolve complex... Management: Lead and manage IT projects, including system migrations, network installations, and software deployments. Coordinate
Senior Technical Program Manager
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$96000 - 163000 per year | Date posted: 23 Jun 2026
and managing software projects with advanced knowledge of the Software Development Lifecycle. Excellent written and verbal
Vice President, Software Supply Chain Security
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 23 Jun 2026
potential. Title and Summary Vice President, Software Supply Chain Security Our Purpose Mastercard powers economies..., Software Supply Chain Security Who is Mastercard? Mastercard is a global technology company in the payments industry
Front Desk Coordinator - O'fallon, Mo
Company: The Joint Chiropractic |

Location: O'Fallon, MO, USA

| Salary: US$18 - 20 per hour | Date posted: 22 Jun 2026
and maintain up-to-date patient records using POS software Assist with clinic marketing efforts and community outreach Maintain
Site Reliability Engineer Ii
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$76000 - 127000 per year | Date posted: 18 Jun 2026
in software run principles that include operational design, automation, capacity planning, and monitoring that leads to fault... faster, more reliable software delivery and operations. Troubleshooting - Capability to systematically identify, diagnose
Senior Service Management Engineer
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$96000 - 163000 per year | Date posted: 18 Jun 2026
products. We support our developers during the application build phase in software run principals that includes operational... with cryptography and certificate lifecycle management, data structures, scripting, pipeline management, and software design
Electrical Estimator
Company: GPAC |

Location: O'Fallon, MO, USA

| Salary: US$125000 per year | Date posted: 17 Jun 2026
utilizing Estimating software applications Knowledge of general construction practices Knowledge of the National Electrical
Customer Service Representative
Company: Ashley Furniture HomeStore |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 17 Jun 2026
and efficient store operations. Technology & Systems: Utilize point-of-sale systems, retail management software, Microsoft
Assistant Store Manager - Sales
Company: Total Wine & More |

Location: O'Fallon, MO, USA

| Salary: US$22.19 - 31.96 per hour | Date posted: 16 Jun 2026
, and developing a sales-focused team Familiarity with point-of-sale systems and inventory management software Ability to work
Call Center Associate - Investment & Retirement Services
Company: Software Guidance & Assistance |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 13 Jun 2026
Software Guidance & Assistance, Inc., (SGA), is searching for a Call Center Associate - Investment & Retirement
Senior Software Engineer
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$115000 - 184000 per year | Date posted: 12 Jun 2026
potential. Title and Summary Senior Software Engineer Who is Mastercard? Mastercard is a global technology company in the... programs with agile, intelligent decision management capabilities worldwide. A Senior Software Engineer is an experienced
Lead Technical Program Manager
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 12 Jun 2026
such as APIs, integrations, SSO, and software development lifecycles. Mastercard is a merit-based, inclusive, equal opportunity
Machine Operator B
Company: O'Fallon Casting |

Location: O'Fallon, MO, USA

| Salary: US$22.5 - 29.1 per hour | Date posted: 10 Jun 2026
where accuracy is paramount, and enter all required information into the Company software in a timely manner. Shall maintain work... and related software. Must be able to handle the physical demands of the job.
Manager, Platform Engineering - Big Data Engineering
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 10 Jun 2026
Establish and mature CI/CD pipelines and engineering workflows to enable efficient, high-quality software delivery Drive..., scalability, and performance Oversee monitoring, observability, and operational health across platform services Software
Lead Software Engineer
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 08 Jun 2026
potential. Title and Summary Lead Software Engineer Overview Mastercard is a global technology company in the payments... a Lead Software Engineer to lead the architecture and design of microservices responsible for both API and web authentication
Senior Software Engineer
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$115000 - 184000 per year | Date posted: 06 Jun 2026
potential. Title and Summary Senior Software Engineer Who is Mastercard? Mastercard is a global technology company in the... secure, scalable, and high-performing software for Mastercards Identity Solutions platform. As a Senior Software Engineer
Teacher
Company: Archdiocese of Saint Louis |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 05 Jun 2026
management software to enter grades, behavior reports/discipline incidents and communicate with parents. Ability to maintain
Manager Software Engineering
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 05 Jun 2026
potential. Title and Summary Manager Software Engineering Overview Leads a team of software engineers delivering..., and ensures high-quality, scalable, and secure software delivery aligned to business priorities. Key Responsibilities Lead
Teacher
Company: Archdiocese of St. Louis |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 04 Jun 2026
management software to enter grades, behavior reports/discipline incidents and communicate with parents. Ability to maintain
Ai Engineering Coach
Company: The Brixton Group |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 04 Jun 2026
of experience in software development or technology consulting. Requires experience in large, complex, and regulated enterprise
Advanced Mri Technologist, Full-time
Company: Mercy |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 04 Jun 2026
and software, mostly MRI equipment, to assist in the diagnosis and treatment of patients. This role requires proficiency... imaging equipment and using imaging software to acquire high-quality diagnostic images. Skilled in effectively communicating
Software Engineer Ii
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$92000 - 147000 per year | Date posted: 04 Jun 2026
potential. Title and Summary Software Engineer II Overview: We work to connect and power an inclusive, digital economy... on software that operates at global scale, where speed, reliability, and resilience matter every day. As a Software Engineer II
Payroll Processor
Company: SAK Construction |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 28 May 2026
and compliance Setup payroll tables within software for payroll processing Other duties and special projects as assigned IDEAL..., construction contractor preferred) Experience with Vista by Viewpoint software a plus ++ SAK Construction is an Affirmative
Senior Software Engineer
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$115000 - 184000 per year | Date posted: 28 May 2026
potential. Title and Summary Senior Software Engineer Who is Mastercard? Mastercard is a global technology company in the... Technology Development team is seeking a Senior Software Engineer to drive innovation and enhance customer experience through
Manager, Technical Program Management
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 27 May 2026
whats next. About the Role Technical Program Managers at Mastercard interact with product managers, software development managers... and BDD in the software development processes Experience delivering technical programs and knowing where to look
Senior Software Engineer
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$115000 - 184000 per year | Date posted: 26 May 2026
potential. Title and Summary Senior Software Engineer Who is Mastercard? Mastercard is a global technology company... transaction processing across global payment networks. Role As a Senior Software engineer, you will be responsible
Manager Software Engineering
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 22 May 2026
potential. Title and Summary Manager Software engineering Our Purpose We work to connect and power an inclusive, digital... the software engineering team for successful product delivery through Testing with utmost quality. Work with product
Senior Software Engineer - Java Full Stack Engineer
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$115000 - 184000 per year | Date posted: 21 May 2026
potential. Title and Summary Senior Software Engineer - Java Full Stack Engineer All About Us MasterCard is a technology.... Participate in the gathering of business requirements. Ensure software designs align with MasterCards Enterprise Architecture
Senior Software Engineer
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$115000 - 184000 per year | Date posted: 21 May 2026
potential. Title and Summary Senior Software Engineer All About Us MasterCard is a technology company in the global... gathering of business requirements. Ensure software designs align with MasterCards Enterprise Architecture and leverage
Senior Site Reliability Engineer
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 19 May 2026
for changes that improve reliability and velocity. Support the application CI/CD pipeline for promoting software into higher..., pipeline management, and software design. Systematic problem-solving approach, coupled with strong communication skills
Customer Service / Inside Sales Representative
Company: unknown |

Location: O'Fallon, MO, USA

| Salary: US$40000 - 55000 per year | Date posted: 16 May 2026
role is preferred Comfortable using computers and customer management software Excellent phone and written communication
Facility Compliance Specialist
Company: C3 Industries |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 15 May 2026
, but not required. Microsoft efficient, with ability to learn new software's. Ability to perform monotonous tasks with great efficiency
Lead Software Engineer
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 15 May 2026
potential. Title and Summary Lead Software Engineer Overview Mastercard is a global technology company in the payments...), we are building a standardized, secure, cloud first software delivery ecosystem and delivering a world class developer experience