Hi Dear sir,
To be honest, Freelancer site is first time for me.
However, I will make Dobuled Effort and show you high skills if you hire me.
I have rich experience modern JS frameworks and Technique using React, Vue, Next, Angular, Grapql, TypeScript and other related language.
So, I 'm very familiar with Unit Test, SEO, and so on.
Please send a message so that we can discuss more.
Looking forward to hearing for you.
Thanks