• Contribute to QA testing efforts of Esprow’s products, with a primary focus on FIX Protocol, trading APIs, and multi-protocol financial systems. • Perform functional, integration, regression, system, and certification testing of trading platforms, web services, and messaging-based systems. • Analyse business and functional specifications of trading systems or matching engines and derive structured test scenarios, validation logic, and detailed test cases directly from them. • Design comprehensive validation strategies across order types, time-in-force rules, trading phases, matching priorities, and negative scenarios to ensure full coverage of exchange and matching engine behaviour. • Create detailed, comprehensive, and well-structured test plans, test cases, and test scenarios aligned with business and technical requirements. • Analyse business and functional requirements to ensure complete test coverage and validate expected system behaviour, including trade lifecycle and post-trade processing. • Analyse test results, logs, message structures, protocol flows, and FIX sessions to ensure software quality and recommend preventive and corrective actions. • Liaise with Project Managers and Development teams to clarify requirements and resolve issues prior to client releases (without acting as a traditional requirements-gathering Business Analyst). • Support client implementation and integration testing activities where required. • Contribute to automation initiatives for API and protocol-level testing where applicable. • Stay up to date with new testing tools, API testing methodologies, and best practices in protocol validation.