As a Full Stack Developer with extensive experience in web and app development, I am confident that I can help you take your web application to the next level. From your description, it is evident that enhancing the user interface and incorporating new functions are top priorities for you. This aligns perfectly with my skills as I have not only created visually appealing layouts but also improved user-friendliness and navigation for previous clients. In fact, in my current role as a Full Stack Developer in startups, I have acquired ample experience in UI design and developing advanced search functionalities.
Moreover, my proficiency with Front-end technologies like React.js, Vue.js, Angular.js will ensure a sleek interface while my back-end expertise using Node.js, Django, Flask, FastAPI will guarantee a robust back-end performance that optimizes user experience. My adeptness with databases like MongoDB, PostgreSQL, and MySQL will also be instrumental in facilitating your platform's advanced search functionality. And let's not forget Version Control (Git/GitHub), Deployments (Docker, AWS, Heroku), and Languages (JavaScript, Python, HTML5, CSS3), - all essential components of creating a cutting-edge platform.