Required Skills:JavaSpring bootNode.jsRestful API & Optimizely platform experienceAdditional Skills:Familiarity with frontend frameworks like React, AngularJS, and Next.js (for API integration)Strong understanding of OOP and SOLID principlesPerformance tuning for large-scale applicationsJob Description:Mid to Senior-Level - Looking for a backend engineer who can own the backend architecture, ensure high performance and scalability, and work well with both frontend and architecture teams. Core Te