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Automation Test Engineer

Job in O'Fallon, St. Charles County, Missouri, 63366, USA
Listing for: Yantran LLC
Full Time position
Listed on 2026-06-27
Job specializations:
  • IT/Tech
    IT QA Tester / Automation
Job Description & How to Apply Below
Position: Automation Test Engineer - Payments

Payment Tester

We are seeking a skilled Payment Tester with hands-on experience in payment systems, specifically in Authorization, Clearing processes, and ISO message formats. The ideal candidate will play a critical role in validating payment flows, ensuring compliance with standards, and supporting end-to-end testing of payment transactions.

Key Responsibilities:

  • Perform functional and integration testing of payment systems with a focus on transaction flows.
  • Validate Authorization and Clearing processes across various payment scenarios.
  • Analyze and test ISO 8583 and ISO 20022 message formats for accuracy and compliance.
  • Collaborate with development and business teams to understand requirements and create detailed test cases.
  • Execute test plans, log defects, and ensure timely resolution.
  • Work closely with Client teams to align testing with network specifications and updates.
  • Support regression testing and automation initiatives where applicable.

Required Skills

Experience:

  • Exposure to agile and waterfall testing methodologies and tools such as RALLY and ALM.
  • Knowledge in Java/C/C++ development in Test automation
  • Experience of working with other developers to ensure that systems are designed for reliability, performance and testability
  • Experience testing across a variety of platforms: web and mobile user interface, APIs (REST and SOAP), and Mainframe and UNIX
  • Exposure in building and using automation frameworks using technologies:
    Java, JUnit, Selenium, JBehave, Soap UI/Pro, REST, JSON and XML.
  • Expert knowledge of Payments Products (Credit/Pre-paid/Debit)
  • Knowledge of payment simulation tools (Paragon, Fin Sim, T3 or similar)
  • Knowledge of ISO payment protocols (8583) desirable.
  • Preferred Qualifications:
  • Experience with other payment networks (e.g., Visa, Client) is a plus.
  • Knowledge of automation frameworks and scripting languages.
  • ISTQB or equivalent testing certification

AI tools may assist in the recruitment process; however, all hiring decisions are made by the recruitment team based on a comprehensive evaluation of candidates. "
*** is an Equal Employment Opportunity employer. We promote and support a diverse workforce at all levels of the company. All qualified applicants will receive consideration for employment without regard to race, religion, color, sex, age, national origin, or disability. All applicants will be evaluated solely on the basis of their ability, competence, and performance of the essential functions of their positions with or without reasonable accommodations.

Reasonable accommodations also are available in the hiring process for applicants with disabilities. Candidates can request a reasonable accommodation by contacting the company ADA Coordinator at ***.

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