As a Full-Stack Developer working on various test-taking solution projects, my main responsibilities include:• Understanding client needs and requirements, then plan and implement the solution independently or in a collaboration with the team• Fully developing and implementing features utilizing primarily Java, JSF and PostgreSQL• Ensuring seamless deployment and maintenance of systemsAdditionally, I've acquired experience in:• Optimizing and refactoring modules to improve their efficiency and maintainability and documenting the code as well• Clean Architecture• Developing application modules using Core Java concepts, including Object-Oriented Programming, Collections Framework, Exception Handling, and Data Structures• Creating clear and concise documentation for systems and processes• UI/UX, manual testing, and debugging processes