Hi,
I can develop that app auction website similar to Flippa but with different design and slight changes.
Please contact me for more details and samples of my work.
I'm an expert web developer, with over 10 years of experience in PHP, WordPress, HTML5, PostCSS, CSS Modules, LESS, NodeJS, AngularJS, ElasticSearch, ReactJS, Gulp, AWS, Webpack, MongoDB, Socket.io.
Best regards,
Dmitry,
Miami