The Senior Full-Stack Developer must have strong experience in building modern web applications using React and Next.js for the frontend and Java Spring Boot for the backend. The candidate should be skilled in developing and integrating RESTful APIs, working with relational databases, and applying sound software architecture principles. A minimum of 5 years of professional experience in software development is required. The role demands the ability to write clean, secure, and scalable code while working independently or within a team. Good communication skills and proficiency in English are essential for effective collaboration and documentation.