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Transaction jobs in o'fallon USA

34 transaction jobs found in o'fallon: showing 1 - 34

Senior Data Engineer
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$115000 - 184000 per year | Date posted: 02 Oct 2026
. Behind every transaction is a sophisticated technology ecosystem that processes billions of payment events with speed
Pharmacy Technician / Pharm Tech Apprenticeship
Company: Walgreens |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 02 Oct 2026
from a transaction-based environment to a much more patient-centric one. As a Walgreens Pharmacy Technician or Pharmacy Technician
Senior Data Engineer
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$115000 - 184000 per year | Date posted: 02 Oct 2026
. Behind every transaction is a sophisticated technology ecosystem that processes billions of payment events with speed
Software Engineer Ii – Notification Manager
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$92000 - 147000 per year | Date posted: 28 Sep 2026
high-volume transaction events and delivers customer-facing notifications through email, SMS, and API channels. Engineers... transaction processing systems. Success Measures (First 12 Months) A successful Software Engineer II on the Notification
Retail Associate
Company: Ross Stores |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 26 Sep 2026
and saying "hello" throughout the Store as well as saying "thank you" with every register transaction. Provides prompt
Principal Software Engineer
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 25 Sep 2026
, digital identity, authentication, or high-scale transaction processing environments is strongly preferred. Mastercard
Manager, Product Operations & Customer Success
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 24 Sep 2026
. Knowledge of Mastercard Send, MoneySend, Visa Original Credit Transaction capabilities, or other push-payment platforms
Senior Software Engineer
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$115000 - 184000 per year | Date posted: 23 Sep 2026
, and scalability Domain knowledge in payments and transaction processing systems Bachelors or master's degree in computer science
Universal Banker
Company: Central Bank |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 22 Sep 2026
to identify customer needs and recommend appropriate solutions. Strong attention to detail and accuracy in transaction processing
Senior Product Manager -technical
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$104000 - 177000 per year | Date posted: 22 Sep 2026
- Technical that will provide innovative, secure, and reliable solutions for core Mastercard transaction switching systems. The
Crew Member
Company: Andy's Frozen Custard |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 22 Sep 2026
treats with accuracy, serves treat(s) to customers Handles transaction for customer and accepts payment or makes change
Director, Customer Performance
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 21 Sep 2026
, as well as closely monitor new risk signals in transaction data, while ensuring their merchants remain compliant with local... and transaction processing (including authentication and authorization), understanding of network rules and ideally relevant
Lead Performance Engineer
Company: Wipro |

Location: O'Fallon, MO, USA

| Salary: US$80000 - 158000 per year | Date posted: 19 Sep 2026
-transaction platforms (e.g., financial systems, payment processing, or large enterprise SaaS) running in a Cloud environment
Lead Performance Engineer
Company: Wipro |

Location: O'Fallon, MO, USA

| Salary: US$80000 - 158000 per year | Date posted: 19 Sep 2026
-transaction platforms (e.g., financial systems, payment processing, or large enterprise SaaS) running in a Cloud environment
Senior Software Engineer
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$115000 - 184000 per year | Date posted: 19 Sep 2026
, and scalability Domain knowledge in payments and transaction processing systems Bachelors or master's degree in computer science
Software Engineer Ii - Decision Management Program
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$92000 - 147000 per year | Date posted: 18 Sep 2026
platform processes high-volume transaction events and delivers customer-facing notifications through email, SMS, and API.... Experience working in high-volume transaction processing systems. Success Measures (First 12 Months) A successful Software
Manager, Product Management - Mdes Localization
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 16 Sep 2026
and reliability of outputs. Working knowledge of payment tokenization, transaction processing, and credit or debit card payments
Senior Software Engineer
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$115000 - 184000 per year | Date posted: 10 Sep 2026
-solving techniques. -Ability to evaluate and optimize application performance in high-volume, transaction-oriented
Shift Manager
Company: Andy's Frozen Custard |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 09 Sep 2026
indicators to drive sales and transaction growth Maintain a calm demeanor during periods of high volume or unusual events
Pharmacy Technician / Pharm Tech Apprenticeship
Company: Walgreens |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 01 Sep 2026
from a transaction-based environment to a much more patient-centric one. As a Walgreens Pharmacy Technician or Pharmacy Technician
Dirt Cheap - Assistant Store Manager
Company: Wallis Companies |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 31 Aug 2026
register executing each of the five steps of the transaction: greeting, quick transaction, suggestive sell, correct change
Senior Software Engineer
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$115000 - 184000 per year | Date posted: 29 Aug 2026
to each qualified transaction processed by Mastercard, increasing the security, accessibility, and simplicity of data for participating
Software Engineer Ii
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$92000 - 147000 per year | Date posted: 26 Aug 2026
and high-performance transaction processing systems. Experience working with development, testing, and release teams in Agile
Senior Software Engineer
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$115000 - 184000 per year | Date posted: 19 Aug 2026
transaction processing workloads. Mentor engineers and promote software engineering and operational excellence best practices... of high-volume transaction systems. Hands-on experience supporting containerized workloads on Kubernetes, PCF, AWS, or Azure
Seasonal Sales Associate (store 3118)
Company: GameStop |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 18 Aug 2026
behaviors during every transaction, and expressing gratitude to every guest for choosing GameStop. Fully support the overall
Universal Banker
Company: Central Bank |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 15 Aug 2026
to identify customer needs and recommend appropriate solutions. Strong attention to detail and accuracy in transaction processing
Store Manager (store 3118)
Company: GameStop |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 14 Aug 2026
transaction and thank every guest for shopping at GameStop; prioritize guests over tasks and demonstrate that commitment... and reconcile daily business transaction totals correctly and accurately in the POS system. Ensure that all closeout paperwork
Senior Software Engineer
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$115000 - 184000 per year | Date posted: 14 Aug 2026
for reliability, performance, and scalability Domain knowledge in payments and transaction processing systems Bachelors or master
On The Run - Fast Track Assistant Store Manager
Company: Wallis Companies |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 30 Jul 2026
on all customer requests, complaints, or suggestions. Operate the register executing each of the 5 steps of a transaction: greeting..., quick transaction, suggestive sell, correct change, proper closing Report to work in accordance with company uniform
Dirt Cheap - Fast Track Assistant Store Manager
Company: Wallis Companies |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 29 Jul 2026
on all customer requests, complaints, or suggestions. Operate the register executing each of the 5 steps of a transaction: greeting..., quick transaction, suggestive sell, correct change, proper closing Report to work in accordance with company uniform
Senior Software Engineer
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: US$115000 - 184000 per year | Date posted: 17 Jul 2026
for all. About the Role Join Mastercards Transaction Stream team in OFallon, MO, and help build the applications and services... systems for reliability, performance, and scalability Domain knowledge in payments and transaction processing systems
Manager, Software Engineering
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 15 Jul 2026
, low latency transaction processing systems (such as payments transaction switching, high frequency trading systems
Manager, Software Engineering
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 08 Jul 2026
, scalability analysis, and system tuning. Ensure applications are designed and optimized for high-volume, low-latency transaction... available, and resilient distributed systems. Experience building and operating high-volume, low-latency transaction processing platforms
Manager, Software Engineering
Company: Mastercard |

Location: O'Fallon, MO, USA

| Salary: unspecified | Date posted: 07 Jul 2026
-critical platforms. Proven track record of delivering distributed/scalable systems and high-volume transaction applications