The New Training Log

Building a Micro Frontend App in a Month at Strava Background The original Training Log was built and released in 2013. The log is a calendar of an athlete’s activities, represented as color-coded, scaled bubbles based on each activity’s type and stats. Weekly totals summarize the activity for each week and displays progress attained on that week’s goals. Written in Coffeescript…

Scaling Club Leaderboard Infrastructure for Millions of Users

Convert a Universal (FAT) Framework to an XCFramework

Background Strava consumes various third party frameworks via Carthage to power our application. These frameworks are either built from an Xcode project stored in a Github repository (Carthage’s github directive in the Cartfile) or distributed as prebuilt artifacts (Carthage’s binary directive in the Cartfile). The binary dependencies are typically distributed as…

My Summer on Platform at Strava

Airbrake for Scala Services My first project focused on integrating Strava’s Scala microservices with…

A summer of Android

I’m Artem, one of the Android interns at Strava in San Francisco during Summer 2019. I’m from Canada and have studied at the University of Manitoba for my Bachelors of Computer Science for the past four years. Team I’m on: During the summer I was on the Experience team, which works on the…

Striving for iOS App Performance

Getting Started This year, Strava achieved a milestone of 1 billion new activities in 18 months*. The first billion activities were recorded over 8 years. Our rapid growth has created new engineering opportunities. One of the focus areas in the past year was our app’s performance. As…

A Richer Activity, Part 1

If you were sitting down to make a ride-tracking platform for cyclists, you’d probably consider storing certain ride details as part of the design. Perhaps you’d pick out some key fields to store like speed, distance, climb, date, time, and bike model. You’d figure a relational database table would work…

Rebuilding the Segment Leaderboards Infrastructure: Part 4: Accessory Systems

An Exploration into the Inspiration of Memes

The Boring Option

Earlier this month the Strava Foundation Engineering team completed a multi-year project to handle the rollover of activity IDs into a 64 bit integer format. This work culminated with a final year-long project to move read and write access of segment effort data from our monolithic Rails app to behind…

Upgrading Kafka at Strava

My name is Daniel Schofield and I am a Senior at the University of Maryland. I have had the pleasure of interning at Strava on the Infrastructure team for the past 3 months. While I am an avid runner that has used Strava for a while, my interest…

The Art and Science Behind Effective Product Goal Setting

As analysts at Strava, we work on many different subject areas that range from defining how we track the usage of features our teams build and supporting experiments, to sizing opportunities for new projects and investing in forward thinking research. However, one of the most exciting areas that analysts support…

Time to Learn React!

The web guild at Strava is responsible for maintaining and improving the Ruby/Rails/JavaScript/CSS platform, processes, and culture. We believe that an up-to-date, modern web platform is not only more secure and faster, but also makes our engineers more productive and happier. As part of a company wide Guild Week, during…

Scala Practices that Powered Streak Challenges

This summer, I helped implement streak challenges at Strava by working on the new challenges infrastructure as an intern on the API team. This entailed implementing and deploying two new Scala services, which introduced me to several cool things like Scala, how Kafka works and how to deploy a Docker…

Strava’s Longest Intern Ever Interns Again

My journey at Strava began in June 2016 as a summer intern on iOS. I was taking a gap year from school the following year, and ended up staying on the iOS team for the year. I then transferred to the Infrastructure team for my second summer, after which I…

You too can strive as a non-traditional intern

Hello everyone, I’m Daniel and I came from a non-traditional coding background. I can’t describe how happy I was when I got an offer for a summer internship at Strava! I worked as an iOS intern alongside a team of amazing web, Android, and iOS engineers. Here, I will tell…

Reaching my Summit during my Strava internship

Running and Scala Services — A Strava Intern Story

Fun. Challenging. Rewarding. This combination of words was not what I expected to experience while working full time at a tech company. I can honestly say that working at Strava has truly set the standard for how I want to be treated at a company, and also the type of…

It takes a team to get FIT

Update to Privacy Zones functionality

Android Launch Performance

As an athlete, two ways to improve performance are building strength or improving efficiency. If you train consistently, you start to see improvements. The path to improving software performance has some similarities like how you might see steady improvements over time, only to reach a temporary plateau before breaking through…

Strava’s New End-to-End Testing Setup

Building Local Legends

Most Strava athletes love competition! Pushing hard to beat someone in the final stretch of a race. Achieving a new personal best at your local road race. Or perhaps simply pushing yourself to keep up with your training partner in a workout. Athletes crave these things, and it drives them…

A Summer of Strive

When I was offered an internship at Strava, I could not pass up an opportunity to spend the summer in San Francisco. As an…

Building Activity Tagging With an Iterative Approach

Have you ever done an activity with a friend, but forgot to record it? Wouldn’t it be awesome if you could turn back the clock and remember to record? Or maybe you ran with a friend who didn’t record and you wanted to introduce to Strava. You’re not alone! A…