Senior MERN Stack Developer with over 6 years of experience building scalable, high-performance web applications. Specialized in ESG and sustainability platforms, translating client requirements into reliable system logic and data flows. Experienced in React, Node.js, MongoDB/PostgreSQL, and Flask APIs for big data processing and background jobs. Strong focus on clean architecture, security, and performance across distributed systems. Based in Iceland and open to remote opportunities across the EU.…Senior MERN Stack Developer with over 6 years of experience building scalable, high-performance web applications. Specialized in ESG and sustainability platforms, translating client requirements into reliable system logic and data flows. Experienced in React, Node.js, MongoDB/PostgreSQL, and Flask APIs for big data processing and background jobs. Strong focus on clean architecture, security, and performance across distributed systems. Based in Iceland and open to remote opportunities across the EU.WWWW…