We are seeking a Principal Software Engineer with a strong background in development using ReactJS, NextJS, and related JavaScript libraries. The ideal candidate will have the ability to understand requirements and convert them into technical implementations, as well as estimate frontend UI work. Experience in implementing responsive web UI according to UX designs is essential, along with knowledge of web application development standards and security principles. The candidate should have a proven ability to work on complex solutions and integrations, write clean and efficient code, and follow industry best practices. Collaboration with backend developers is crucial, and experience in rapid application development and Agile methodologies is required. The role also involves providing support during testing, UAT releases, and fixing reported bugs.