Focus and Contrast

The Deezer logo as seen by someone with Protonapia (Red-Green Color-blindness). This image was created using the Chrome extension ChromeLens, which allows you to view a website as seen by someone with a variety of visual conditions, from color-blindness to those with partial sight. In the last article, we looked…

Women’s Voices — A Product Marketing Story

Part. 1: Women’s Voices — A Product Story Part. 2: Women’s Voices — A Brand Story Part. 3: Women’s Voices — A Data Story Part. 4: Women’s Voices — A…

1001 ways to code your projects, 1 way to meet your needs

Have you ever noticed that there are about 1001 ways to do something, especially in software development? As I tell every developer who joins my team, especially interns or junior devs, no one knows everything and every solution should be considered. I was recently confronted with 1001 ways of doing…

My first job as a Web Engineer, from doubt to fulfillment

This is what you’ll typically find in the ‘requirements’ section of a tech job vacancy: “Has strong knowledge in several languages, is “full-stack”, is able to create strong architecture, scalable and flexible, has experience in understanding large and complex code bases, must be proactive and organized, has a great team…

Deezer Research @RecSys 2017 — 11th ACM Recommender Systems Conference

A key aspect of Deezer product is providing our users with a personalized listening experience. To pick the perfect tracks for the right moment, a wide variety of signal processing and machine learning algorithms are involved in Deezer’s…

Women & Hip-Hop

Playlist inspired by the article: Women & Hip-Hop playlist - Listen now on Deezer | Music Streaming nielswww.deezer.com Introduction Hip-Hop was born in 1973 on 1520 Sedgwick Avenue in the Bronx, NYC. On January 4th 2018, it became the most consumed music genre in the United States, surpassing rock for the first time in history. In between those years, Hip-Hop and especially rap music…

Visualize your music DNA with Data

At Deezer, we take the world of music and make it personal. That’s why we designed Flow, your personal soundtrack, and a dynamic home page to help you find your perfect tracks in no time. But does personal content only revolve around music recommendation? Of course not! This article will…

Lifting our 2,000 favorite tracks limit

Co-authored by Virgile Carron Adding tracks to favorites is one of Deezer’s most important features. It’s been here for ten years now. It’s the best way to save the content that you love and above all to help us suggest awesome music according to your tastes. It’s also the essence…

Some Fun with Deezer Data and Elastic Graph

A year ago the Elastic team released the Graph product, whose promise is to offer: a new way to discover, and explore, the relationships that live in your data. Here we will describe how Graph could be used on Deezer data to rebuild our “Similar Artists” feature. What do we…

FOSDEM 2018

What is FOSDEM? FOSDEM (Free and Open-source Software Developer’s European Meeting) is one of the largest European open-source and non-commercial conference, taking place annually at the Université Libre de Bruxelles. This year it offered more than 650 lectures presented by 600 speakers on 50 different themes. It’s a real place to share and…

Creating cron job vitals with Prometheus Pushgateway

Software Engineering is often all about automating what can be automated. That’s why we build cron jobs. cron is a utility that can be found in any Unix-like system, used to schedule tasks and commands that need to be executed repeatedly (i.e. every hour or every day). For example, we…

Deezer ConTEST, where Product and QA meet

As the event will take place in Paris, this post is available both in French and in English (scroll down for the English version). Nous organisons Deezer ConTEST, premier événement qui associera une quarantaine de participants dans le cadre d’une journée de challenges, de brainstorming et de chasse aux…

A better way to search for music through query suggestion

At Deezer, we are fully aware that the number one reason why users subscribe to our service is to access the depth of our catalogue of 50 million tracks. And for that the Search is key. Some history To provide a best in class user experience, the Search team at Deezer had…

From Paris to Bordeaux, an interview with Deezer’s CTO

On this (special) occasion, the…

From a few insights to a key feature

Product conception is based on a multitude of factors: data analytics, market research, benchmark, feedback from users/stores/customer support, user testing, intuition…And it always requires a few steps (and sometimes more than expected) to go from the initial concept or hypothesis to the final product pushed to all users. During my…

What The Bug? Our method to detect outliers

Who are we? We are the Data-Analytics team. Insights, numbers, dashboards… we provide data to our company. The goal? Help business and product teams in designing music and digital experiences that will be the best they can be for our users. Why do we need to detect outliers? As a tech data team, we rely on different KPIs. We check…

Matching Albums through Cover Art Fingerprinting

Deezer @ Kaggle Days Paris — 5 Takeaways from the Presentations and the Competition

I was lucky enough to attend the second edition of Kaggle Days, which took place in Paris in January. 200 Data Scientists from all over the world gathered over two days for exciting Data Science-oriented conferences, workshops, brainstorming sessions… and an offline Kaggle competition! If you haven’t heard of Kaggle…

Akka as a bridge between REST and Kafka

Source: sciencing.com At Deezer, we love to play different chords, and to play with different technologies. Here we will present a solution to the problem of receiving millions of messages per day from a REST endpoint, processing them and pushing them back to Kafka. Inspired by The Reactive…

Releasing Spleeter: Deezer R&D source separation engine

In a nutshell We are releasing Spleeter to help the research community in Music Information Retrieval (MIR) leverage the power of a state-of-the-art source separation algorithm. It comes in the form of a Python Library based on Tensorflow, with pretrained models for 2, 4 and 5 stems separation. Spleeter will be presented…

Using a “go links” service in your organization

When I joined Deezer three years ago, the onboarding process (called DeezCover) was undergoing a complete redesign, so mine was relatively brief. I struggled to find my way around the company’s organization and documentation as I stepped into my new job. Of course, there was an internal Wiki, but you…

Deezer Introduces Search by Lyric

Musicathon — Let’s Rock IT Innovation

Web and Surf Summit afterglow: a Product Manager’s review

Women’s Voices — A Data Story

Part. 1: Women’s Voices — A Product Story Part. 2: Women’s Voices — A Brand Story Part. 3: Women’s Voices — A Data Story Part. 4: Women’s Voices — A…