Rubén Expósito

With over 7 years of professional experience, I have been working in various types of companies, mostly consultancies. This has led me to work with different clients and tackle various projects with quite different approaches, from real-time messaging applications, live music streaming platforms, to applications with payment integrations like Stripe or Google Pay.

Among some of the clients/projects I have worked on are RCD Espanyol, B4Work, Zyncro, and Bacco, and in some of these projects, I have served as both a programmer and a technical lead.

As a freelancer, I look for projects where I can not only develop but also help the client in creating their idea and advise them on both the technical and product aspects.

To carry out my projects, I use Kotlin on Android or Swift on iOS. I always try to integrate a style guide and customize the app from the beginning of the project, giving it that unique touch to the product. I have integrated a lot of libraries, mentioning some of them: Firebase, ReactiveX, Coroutines, Realm, Room, Stripe, SocketIO, Lottie, Alamofire, etc...

If the application requires a backend, I would consider an mBaaS like Firebase, Back4App, Parse... for MVPs or build a traditional server with Spring Boot (Kotlin) or Node.JS if the product requires more complexity, connected to a MySQL (SQL) or MongoDB (noSQL).

Although it is not my specialty, I can design application components using Figma.