Hello serafimcosta,
Yes, we can help you to build your website.
Kindly share your requirements in details so that I can get a clear idea about the total scope of the job.
We have very good experience in website designing and development using WordPress, PHP, CodeIgniter, CakePHP, Laravel, MySQL, Ajax, HTML5, CSS3, Bootstrap, jQuery, JavaScript etc...
Let's discuss more details...
Regards
Sukant