Hello,
I feel i will be the best choice for you to help you in your codebase as I hold 2 years of experience with Reactjs/nextjs with well reputed fintech startup and have good hands on htmls, css, JavaScript, typescript along with many ui frameworks as well.
Being an experienced I have good knowledge about project architecture where i can write reusable, clean,well commented code with highly responsive if needed which will surely help you in your codebase.
Thanks in advance