Developed and maintained user-facing frontend webpages for one of the Major European banks with about 2 million customers using HTML,CSS, JavaScript,React JS,Bootstrap, Redux toolkit,Accessibility etc.Familiar with working alongside Banking customers to determine needs, create plans and optimize design usability and performance.Debugged existing code to identify and fix bugs or performance issues.Optimized application for maximum speed and scalability by utilizing best practices such as minification, caching techniques.Created technical documentation(LLDs) including system architecture diagrams, flowcharts and process maps.Implemented unit testing with Jest covering most of the codebase for checking various test scenarios, which in turn resulted in fewer bugs in production.Leveraged Agile methodologies to move development lifecycle rapidly through initial prototyping of enterprise- quality testing and final implementation.