My name is Dennis Valverde, I'm General Manager of Go-Labs, a software development company based in Costa Rica with experience in mobile and web development.
I have read your post looking for people with experience in iOS, Android, PHP and .net and I want to tell you that we have developers available in order to start a partnership with you. Let's talk via Skype or other way in order to know more about us and the available profiles.
We are based in Ciudad Quesada, san Carlos.
Clients in United States, Canada, Spain, Ecuador and Costa Rica can give you a reference of our capabilities and how Go-Labs has changed and improved their way to make business.
In mobile technologies, we develop native applications in Android and iOS, also we have experience developing hybrid apps using frameworks like PhoneGap, Titanium and Ionic. If you need a web site with mobile compatibility, we have developers with vast skills in web concepts like Mobile First and Responsive Design.
On web development, we work with the last technologies available in the market, our technology stack in frontend and backend include languages and frameworks like HTML5, CSS3, Javascript, ASP.NET, PHP frameworks (Laravel, Codeigniter, etc), Ruby on Rails, Wordpress, the MEAN Stack (MongoDB, ExpressJS, AngularJS, NodeJS) and more.