Archives
Dec 5, 2023
Recursive Embedding and Clustering
TL;DR Large sets of diverse data present several challenges for clustering, but through a novel approach that...
Published by Gustavo Pereira, Sr. Data Scientist
Nov 14, 2023
The What, Why, and How of Mastering App Size
Our daily tasks as engineers often involve implementing new functionalities. Existing users get to enjoy the...
Published by Viktor Petrovski (Android Engineer), Dmitry Povolotskyi (Senior iOS Engineer), and Bruno Rocha (Senior iOS Engineer)
Nov 8, 2023
Spotify Wins CNCF Top End User Award for the Second Time!
This week at KubeCon + CloudNativeCon in Chicago, the Cloud Native Computing Foundation announced that...
Published by Dave Zolotusky, Principal Engineer & CNCF Technical Oversight Committee Representative
Nov 7, 2023
How We Automated Content Marketing to Acquire Users at Scale
Spotify runs paid marketing campaigns across the globe on various digital ad platforms like Facebook, Google...
Published by Bryan Maloney (Senior Engineering Manager), Christopher Tang, (Senior ML Engineer), Deepak Bhat (Senior Data Engineer), and Ryan Kim (Senior Product Manager)
Oct 25, 2023
Introducing Voyager: Spotify’s New Nearest-Neighbor Search Library
For the past decade, Spotify has used approximate nearest-neighbor search technology to power our...
Published by Peter Sobot, Staff ML Engineer
Oct 23, 2023
Announcing the Recipients of the 2023 Spotify FOSS Fund
TL;DR It’s back! Last year, we created the to help support the free and open source software projects we use...
Published by Dave Zolotusky, Principal Engineer
Oct 20, 2023
Exclude from Your Taste Profile
Are you a parent forced to put the Bluey theme song on repeat? Do you work from home and play lofi beats or...
Published by Mark Koh, Senior ML Engineer
Oct 17, 2023
Switching Build Systems, Seamlessly
At Spotify, we have experimented with the build system since 2017. Over the years, the project has matured,...
Published by Patrick Balestra, Staff Engineer
Oct 5, 2023
Managing Software at Scale: Kelsey Hightower Talks with Niklas Gustavsson about Fleet
How does Spotify manage a sprawling tech ecosystem made up of 500+ squads managing over 10,000 software...
Published by Spotify Engineering
Sep 28, 2023
How to Accurately Test Significance with Difference in Difference Models
When we want to determine the causal effect of a product or business change at Spotify, A/B testing is the...
Published by Bradley Doll (Insights Manager), Jeffrey Li (Insights Manager), and Tolga Oztan (Sr. Data Scientist)
Aug 24, 2023
Encouragement Designs and Instrumental Variables for A/B Testing
At Spotify, . Most of these tests follow a standard design, where we assign users randomly to control and...
Published by Benjamin Elbers, Data Scientist
Aug 16, 2023
Experimentation at Spotify: Three Lessons for Maximizing Impact in Innovation
As companies mature, it’s easy to believe that the core experience and most user needs have been resolved,...
Published by Gabriella Ljunggren, Data Scientist
Aug 3, 2023
Coming Soon: Confidence — An Experimentation Platform from Spotify
TL;DR: Spotify is releasing a new commercial product for software development teams: a version of our...
Published by Tyson Singer, Head of Technology and Platforms
Jul 25, 2023
Bringing Sequential Testing to Experiments with Longitudinal Data (Part 2): Sequential Testing
In of this series, we introduced the within-unit peeking problem that we call the “peeking problem 2.0”. We...
Published by Sebastian Ankargren (Sr. Data Scientist), Mattias Frånberg (Sr. Data Scientist), and Mårten Schultzberg (Sr. Manager/Staff Data Scientist)
Jul 18, 2023
Bringing Sequential Testing to Experiments with Longitudinal Data (Part 1): The Peeking Problem 2.0
At Spotify, we’re constantly improving our data infrastructure, which means we can get feedback on...
Published by Sebastian Ankargren (Sr. Data Scientist), Mattias Frånberg (Sr. Data Scientist), and Mårten Schultzberg (Sr. Manager/Staff Data Scientist)
Jun 28, 2023
Experimenting with Machine Learning to Target In-App Messaging
At Spotify, we use messaging to communicate with our listeners all over the world. Our Messaging team powers...
Published by Euan Dowers, Senior ML Engineer
Jun 22, 2023
Analyzing Volatile Memory on a Google Kubernetes Engine Node
TL:DR At Spotify, we run containerized workloads in production across our entire organization in five regions...
Published by Marcus Hallberg, Security Engineer
Jun 15, 2023
Experimenting at Scale, the Spotify Home Way
In the fast-paced world of streaming, personalization plays a vital role in enhancing user experiences. At...
Published by Nik Goyle, Product Manager
May 25, 2023
Multiple Layers of Abstraction in Design Systems
Check out our previous post — — for more about how we define APIs for design systems.
Published by Charlie Eshleman, Design Systems Engineer
May 15, 2023
Fleet Management at Spotify (Part 3): Fleet-wide Refactoring
This is part 3 in our series on Fleet Management at Spotify and how we manage our software at scale. See also...
Published by Matt Brown, Staff Engineer
May 10, 2023
TV Spatial Navigation
Very often, when developing user interfaces, a lot of focus is given to the visuals, as that’s what primarily...
Published by Sergio Avalos, Senior Engineer
May 3, 2023
Fleet Management at Spotify (Part 2): The Path to Declarative Infrastructure
This is part 2 in our series on Fleet Management at Spotify and how we manage our software at scale. See also...
Published by David Flemström, Principal Product Manager, and Alexander Buck, Senior Engineer
Apr 27, 2023
Humans + Machines: A Look Behind the Playlists Powered by Spotify’s Algotorial Technology
TL;DR Since 2017, Spotify has been working to create a better listening experience for our users by creating...
Published by Christopher Barthle, Engineering Manager
Apr 18, 2023
Fleet Management at Spotify (Part 1): Spotify’s Shift to a Fleet-First Mindset
This is part 1 in our series on Fleet Management at Spotify and how we manage our software at scale. See also...
Published by Niklas Gustavsson, VP, Engineering
Apr 13, 2023
Large-Scale Generation of ML Podcast Previews at Spotify with Google Dataflow
As of March 8, 2023, Spotify has started serving short previews for music, podcasts, and audiobooks on the...
Published by Diego Casabuena (ML Engineer, Spotify), Edgar Tanaka (ML Engineer, Spotify), Winstead Zhu (ML Engineer, Spotify), Reza Rokni (PM, Google Dataflow ML), and Danny McCormick (Senior Software Engineer, Google)
Mar 31, 2023
Load Testing for 2022 Wrapped
is Spotify’s global annual year-end campaign that celebrates our listeners with a personalized review of...
Published by Fred Wang, Senior Backend Engineer
Mar 21, 2023
Choosing a Sequential Testing Framework — Comparisons and Discussions
TL;DR Sequential tests are the bread and butter for any company conducting online experiments. The literature...
Published by Mårten Schultzberg (Staff Data Scientist) and Sebastian Ankargren (Sr. Data Scientist)
Mar 15, 2023
Encore x Accessibility: A Balancing Act
On the Encore team (Spotify’s design system), there’s nothing we love more than collaborating with our fellow...
Published by Arielle Benedek (Product Manager), Rose Marantz (Web Engineer), and Tamas Geczy (Web Engineer)
Mar 6, 2023
Getting More from Your Team Health Checks
Watch Justin and Fiona speak about ‘’ at the Spotify Engineering Conference in 2022.
Published by Justin Kotzé, Senior Agile Coach, and Fiona Siseman, Senior Agile Coach and Agile Coach Manager
Feb 21, 2023
A Multi-Year Challenge: Repairing Deep Linking & Attribution at Spotify
Deep linking and attribution are important functionalities for a growing business. Deep links seamlessly get...
Published by Erik Dornbush, Sr. Systems Engineer
Feb 15, 2023
Incident Report: Spotify Outage on January 14, 2023
On January 14, between 00:15 UTC and 03:45 UTC, Spotify suffered an outage. The impact was small at first and...
Published by Erik Lindblad, Staff Engineer
Feb 1, 2023
Unleashing ML Innovation at Spotify with Ray
As the field of machine learning (ML) continues to evolve and its impact on society and various aspects of...
Published by Divita Vohra, Sr. Product Manager, Keshi Dai, Sr. ML Engineer, David Xia, Sr. ML Engineer, & Praveen Ravichandran, Staff Research Scientist
Jan 18, 2023
Agile Coaching (AC) at Spotify: Shining a Light on the AC Career Framework
At Spotify, change is a constant, and our agile coaches are here to help teams and leaders thrive as we...
Published by Fiona Siseman, Alia Rose Connor, and Cara Lemon
Jan 5, 2023
What’s a “Listening Personality”?
We did a couple of new things in Wrapped this year, and one of these is a thing called Your Listening...
Published by glenn mcdonald, Data Alchemy
