BigStep Technologies - BASE24 Test Engineer - Transaction Processing System

Job Description

We are looking for a Base24 Test Engineer with strong experience in payment transaction systems and switching platforms. The role involves functional, integration, and certification testing of Base24 applications (Classic/EPS), ensuring high-quality transaction processing systems for ATMs, POS, and card networks. Key Responsibilities Design, prepare, and execute test plans, test cases, and test scripts for Base24 applications. Perform functional testing, regression testing, and system integration testing for ATM, POS, and payment switch systems. Conduct end-to-end testing of ISO8583 messages and EMV-based transactions. Support certification testing with payment networks (Visa, MasterCard, RuPay, UPI, etc. Identify, log, and track defects/bugs using standard defect management tools. Work closely with development, business, and support teams to clarify requirements and resolve issues. Participate in production verification testing (PVT) and ensure smooth deployments. Maintain test documentation, reports, and knowledge repository. Required Skills & Qualifications 3+ years of hands-on experience in testing Base24 (Classic/EPS) applications. Strong understanding of payment transaction flows (ATM, POS, ISO8583, EMV). Experience in HP NonStop / Tandem environments (Guardian, OSS, TACL). Familiarity with test simulators (e.g., Mastercard, Visa simulators, FINSIM). Knowledge of defect tracking and test management tools (e.g., JIRA, ALM, Quality Center). Good understanding of card products (Debit/Credit, Magstripe, EMV, Contactless). Strong problem-solving, debugging, and analytical skills (ref:hirist.tech)