Hi
Nice to meet you.
I've reviewed your description for a while.
1. Wireframe is ready - OK
2. PSD files for UI is ready - OK
3. The API is already and built in PHP - OK
4. DB is mysql and ready - OK
So you want frontend only and integrate to backend.
My main skills are below:
Backend: PHP, RoR, Laravel, Smarty, Symfony, Yii and Codeigniter, Node.js and other CMS frameworks such as Drupal, Joomla, WordPress, Shopify and , RESTful API, PHP etc
Frontend: AngularJS, Angular2/4/5/6/7, Html5 and CSS , React JS, Vue.js, Django
Database: MySQL, MS SQL, MongoDB
Please let me know your opinion.
Thanks