With the rewrite of our core product web application, we moved from a PHP/JavaScript tech stack to a Next.js stack. One of the most significant changes for developers was the switch to TypeScript, which most of us had not had a lot of experience with, previously.

From April 2020 until the end of 2021, we have put trivago’s web frontend on a new tech stack. Having moved away from a quite large PHP codebase and our home-grown JavaScript framework Melody, trivago now runs on a Next.js application, written in TypeScript.

Have you ever wondered about how to create components that not only change their appearance according to the viewport’s width but instead also transform according to their parent element’s sizing? This might be the case when you have a card component that has the classical vertical layout on mobile:

I’m happy to share that trivago has released a Prettier plugin which sorts import declarations in TypeSCript and JavaScript modules for a given configured order. Throughout this article, I’ll explain to you the motivation behind this Prettier plugin and how it works in detail.

When techies hear about email marketing and designing HTML emails, they typically roll their eyes and think of a very boring field of work. In this article, we hopefully can explain to you why this is wrong from our perspective. Our team built a solution that our marketers use to easily design HTML emails with predefined modules within our email marketing platform Salesforce Email Studio, which is part of the Salesforce Marketing Cloud (SFMC). This article gives you an overview of our approach as well as why and how we built such predefined modules for Email Studio on our own.

After almost a decade, we decided to rebuild our in-house Business Intelligence web application to better support the organization. It is always challenging to replace software with a long history and a high degree of complexity. Nevertheless, we successfully completed the project because we fundamentally challenged and re-thought all aspects of the project.

At trivago we are working heavily on the web platform and, based on the scale that we need to serve our users, our applications need to cater for many different kinds of environments and conditions.

Over the past few months, I was given the opportunity to try out the life of a Product Owner (PO), alongside retaining my responsibilities as an engineer. The life of a PO has always intrigued me since I joined trivago 2 years ago, and I always found myself unofficially taking on roles that were traditionally done by them. Things like reaching out to stakeholders for collaboration, thinking about KPIs and impact, and general "aligning". Perhaps it's because I simply love the sound of my own voice, but I've always felt a particularly high level of gratification from contributing in meetings. "Aligning" is an overused word in the workplace, but it is the best to describe where I derive my professional gratification from, outside of building things with code.

trivago open sourced a Prettier plugin for the Twig template language. It is available under the Apache 2.0 license, and you can access it on trivago's Github space.

The trivago core product runs on our own frontend framework Melody. Melody uses a Twig-inspired template language because when it was introduced, it had to be interoperable with our existing codebase, which was based on the Symfony PHP framework with Twig as the default template language.

At the end of last year, to celebrate our continued sponsorship of the Open Source community, we hosted a small conference with special guests at our Düsseldorf campus. We initially hoped to welcome Tobias Koppers and Sean Larkin from Webpack, plus some internal speakers. What we didn't expect was the huge amount of fantastic speakers who wanted to present their projects to the community. In the end, Sean unfortunately couldn't make it but we did have a chance to welcome Marvin Hagemeister, Juan Picado, Norbert de Langen and Pia Mancini as speakers, plus our own amazing talents.

At trivago we live diversity. We have 55 localised platforms and internally you can find talents from around 90 different nationalities all working towards providing a better experience to our customers. We are constantly evolving as we face organisational, societal and industrial challenges. That's why we identify a lot with this year's theme "A New Dawn", as we too explore the meaning and evolution of our approaches and practices. This year we have decided to support IxDA20 through sponsorship for the first time. It reflects our belief and increasing efforts to invest in Design and Research at trivago as we strive for an inclusive world.

In the beginning of 2019, the trivago Magazine team decided to switch over from a JavaScript Single Page Application to Server-Side Rendering. This article describes the why, the how, and further challenges of this journey.

We are originally from South Korea and we've been in Germany for about three years.

We often check the Facebook and Instagram posts from Life at trivago, so we could easily find out about trivago Tech Camp 2019 through social media.

tl;dr: continuously monitor your CDN and origin servers on layer 3 with tools like MTR. Layer 3 issues on external middleware can have a significant impact on layer 7 web performance.