We are seeking an experienced Calypso Back Office Test Engineer with strong hands on expertise in the Calypso Automated Testing Tool (CATT) The role focuses on automating and executing test cases across Calypso Back Office modules (Settlements, Confirmations, Payments, Accounting, and Interfaces) and ensuring smooth delivery of Calypso version upgrades The candidate will play a key role in enhancing automation maturity, reducing manual effort, and improving regression test reliability within a global investment banking environment Key ResponsibilitiesDesign, develop, and maintain automated test scripts using CATT for back office modules, covering regression, functional, and version upgrade testing Validate end to end post trade workflows including trade enrichment, settlement instruction generation, matching, and accounting events Perform upgrade readiness testing ensuring successful migration of configurations, templates, and interfaces between Calypso versions Execute regression and integration testing for enhancements, patches, and release cycles Collaborate with development, business analysis, and environment support teams to troubleshoot and validate test results Utilise Calypsos pre built BO test case repository and enhance with custom automation scripts for client specific workflowsDocument test results, maintain a CATT test case repository, and manage defect lifecycle using JIRA or equivalent tools Work with business and operations teams to simulate real world trade lifecycle and settlement processing scenarios Contribute to continuous improvement through automation optimisation and test data management Required Skills and ExperienceMandatory hands on experience in Calypso Automated Testing Tool (CATT) for Back Office testing and Calypso version upgrade validation Strong functional understanding of Calypso Back Office modules: Settlements, Confirmations, Payments, Accounting, Messaging, and Reconciliation Proficiency in CATT test creation, maintenance, and automation suite execution Experience in SQL (Oracle/MS SQL) for backend validation and Unix scripting for environment checks and log analysis Good understanding of trade lifecycle for FX, Fixed Income, Money Markets, and Derivatives Excellent analytical, documentation, and communication skills Preferred SkillsExposure to Calypso interfaces and middleware testing (MQ, JMS, file based feeds) Experience in CI/CD based test automation or integration of CATT with DevOps tools Understanding of Agile testing practices and test management using JIRA / HP ALM