Desde el inicio de Karumi hemos intentado apostar por una forma de trabajar y unas tendencias del mercado con las que nos sentíamos identificados. En 2013, cuando surge la idea de Karumi, no existían en España consultorías “boutique”, sólo algunos freelances pero nada como lo que pretendíamos hacer. Por ejemplo, desde el principio fuimos "remote first" o lo que ahora se llama "full remote", y a lo largo de los años hicimos otras apuestas, como buscar perks y cuidados para nuestros empleados que tuvieran en cuenta su salud mental y que pudieran desconectar del trabajo. Algunas compañías nos ha ..read more

In Karumi, we have two fundamental principles that we always like to keep in mind. One is sharing our experience with the community, and the other is continuous improvement. Along with this blog post, we want to explain how we do our hiring process for a new Karumi member, how we approach it, what we have learned from previous cycles and what we need to improve for future hirings. It all started four months ago. We decided to expand the team with one tech person more; the previous hiring was around two and a half years before. Adding a new member to the Karumi team is always a good idea becau ..read more

In our latest blog post, we talked about our latest project, a fintech product we built for a US company based in California. In that blog post, we described the main challenges we faced and how we solved them. However, today we are going to review the most visible part of the project, the iOS app we built for them. Our client needed to implement an iOS app letting the user log into the application using an invitation-based system that used either invitation codes or QR codes. Once logged in, users can link their bank account to make deposits and withdrawals from the app. Additionally, they c ..read more

Some time ago, one of our clients hired us for a new challenging development. This time, we started an amazing project we’d like to share with you ? We created FinTech based project. This two blog post series review all the tech decisions we made while developing the back-end/front-end code and iOS app Our latest project is a FinTech company based in California who was looking for someone to develop their product. Through the platform online investment application, you can place your funds in a series of fixed interest accounts. Link your bank account and make deposits with zero fees to inves ..read more

Weeks ago, the Jetpack Compose team announced their first alpha release full of useful features, a lot of reference code and some documentation. It was a great moment for the Android ecosystem! We know Compose is going to change the way Android devs build apps around the world and we also wanted to help. That's why today we announce official Screenshot Testing support for Jetpack Compose in Shot. Right after the release, José Alcérreca wrote to us to mention there could be an interesting opportunity to implement screenshot testing support as part of our already implemented screenshot testing ..read more

In Karumi, we are always looking for technologies and tools that help us and help our clients to produce, evolve, and maintain their products with the highest quality and robustness in mind. Most of the time, we have to develop some mobile clients that will consume an already established backend API; or develop both the backend services and the clients using them. One tool that has been hanging in our belt for the last couple of years is OpenAPI, previously known as Swagger and we are more than pleased with it, so now, it's my turn to convince you about why you should be using it if you work ..read more

One of the biggest complaints you can find between iOS developers is that sometimes, the feedback loop you have when you are doing some fine-tuning of the UI is long. It produces a new Swift compilation, creates a new binary, then the app gets deployed to the simulator, once that's done, the system will start the app, and then you will be able to navigate to the right screen to check if those small changes are ok. Sounds familiar? Meanwhile, you can see your colleges developing websites or React Native apps that they get feedback almost immediately, and they can even modify the UI with a desi ..read more

One of the questions we face when talking with Android developers all around the world is related to the tools we use ? The selection of libraries and frameworks used by our Android team is one of the most interesting details in our development pipeline, so we will try to answer this question in this blog post ? When listing the libraries we use, we need to focus on various types of tools based on different topics: static analysis utilities, build tools, networking, persistence, permissions, user interface, core components, and testing. We have a bunch of tools we've used for years, and we w ..read more

2019 is the fifth year in a row that a functional programming event is gathering more than 600 people. In the beautiful city of Cádiz. All here to learn about this remarkable coding paradigm. If you couldn't attend or you want to know about our experience in this event, keep reading. ? This year, Jorge and I were in Cádiz since the very first day. The schedule for the Thursday event was exciting. During the morning, an unconference where anyone could propose a lighting talk took place. It was super interesting to see how awesome developers from many different companies decided to talk about ..read more

Here is the second post from our series about Kotlin Multiplatform focused on mobile app development. Check out the first steps into Kotlin Multiplatform, we always want to share with you our experience in development and we hope this kind of series will help you to build your first Multiplatform application in Kotlin. The purpose of this post is to show you how to integrate your common module into two different mobile platforms. We will also review the problems and solutions we found while using this development approach. From the UI layer to automated testing, or some troubles we found whil ..read more