Hi there.
I have read your project description carefully and can assure to complete this project successfully.
I have rich experience in web testing, debugging, analytics, speed optimization, wordpress website building and theme & plugin customization, Child theme development, custom widget & post type and shortcode creation, PSD/Figma/Zeplin/XD 2 WP, AJAX, html5/css3, Less/sass/scss, bootstrap, jquery/javascript, MySQL, php & software architecture.
And therefore very interesting to your project.