Hiring: Payment Tester Engineer Company: AppLab Systems, Inc Location: St Louis, MO Job Posted Time: 2026-09-16 22:48:12 Employment Type: Full-time Target Skills & Keywords : C, C++, Epic Systems, Linux, Root Cause Analysis About the job Experience: •5 to 8 years of experience in the payments industry and with T3 hands on. •8 years of experience in the payments industry and with T3 hands on. Required Skills: •With 5 to 8 years of experience in the payments industry and with T3 hands on. •Perform end-to-end testing of payment transaction processing applications using •Design, develop, and execute manual and automated test cases for payment authorization, clearing, settlement, and related transaction flows. •, transaction routing, and authorization responses. •Develop and maintain automation frameworks and test scripts for regression and functional testing. •Execute testing in Unix/Linux environments •, including log analysis and troubleshooting. •Validate application functionality across multiple payment networks and transaction types. Interested candidates, please apply directly through the job posting on company's career page or try via AI auto apply on this platform. Don't miss this opportunity to join a forward-thinking team!