Backend - DoorDash Engineering Blog

Newest Article

Backend Failure Mitigation for Microservices: An Intro to Aperture

Learn how centralizing service monitoring and controlling into a single system improves upon individual service level mitigation efforts

Cong Ma

Matt Ranney

19 Minute Read

Backend

The Beginner’s Guide to Kotlin Coroutine Internals

When our team started using Kotlin for our backend development we created this guide so our engineers could use coroutines over Java threads.

Sonic Wang 16 Minute Read

Backend

Separating User Data with Multi-tenancy To Improve User Management

Learn how multi tenancy can help enable more convenient guest checkout

Carol Wang 7 Minute Read

Backend Mobile

Improving Development Velocity with Generic, Server-Driven UI Components

Learn how Generic server driven UI enabled faster iterations and more experimentation on the DoorDash platform

Ashwin Kachhara

Alice Hyun

Afshin Dehghani 27 Minute Read

Backend Data

Building Faster Indexing with Apache Kafka and Elasticsearch

DoorDash describes how it built a faster search index using open source projects.

Satish Saley

Danial Asif

Siddharth Kumar 13 Minute Read

Backend Web

Leveraging the Pipeline Design Pattern to Modularize Recommendation Services

Learn how DoorDash engineers used a pipeline design pattern to make our recommendation page more efficient and flexible.

JoshZhu 9 Minute Read

Backend

Leveraging OpenTelemetry For Custom Context Propagation

Enabling custom content propagation allows our microservices architecture to take advantage of several powerful use-cases

Amit Gud 10 Minute Read

Backend Mobile Web

Overcoming Localization Challenges for International Expansions

DoorDash defined four key challenges to getting its platform ready for an international launch.

Noah Zempsky

Ethan Myers

Siddhartha Kakarla

Winston Zhao

Bryan Huang

Xilin Liu 18 Minute Read

Backend Web

Rebuilding and Migrating a Session Management System with Zero Downtime

Migrating DoorDash's business-critical session management system in a disruption-free manner required careful planning and monitoring.

Sin Ko

Li Pei 18 Minute Read

Backend

Migrating From Python to Kotlin for Our Backend Services

To support our migration to microservices we needed to find a new tech stack. Learn how we compared all the options and chose Kotlin

Matt Anger 14 Minute Read

Backend General

Gradual Code Releases Using an In-House Kubernetes Canary Controller

New service releases deployed into DoorDash’s microservice architecture immediately begin processing and serving their entire volume of production traffic. If one of those services is buggy, however, customers may have a degraded experience or the site may go down completely. Although we currently have a traffic management solution under development for gradual service rollouts as ...

MarcoChirico 15 Minute Read

Backend General

Optimizing OpenTelemetry’s Span Processor for High Throughput and Low CPU Costs

When companies move to microservices, they need to address a new challenge of setting up distributed tracing to identify availability or performance issues throughout the platform. While various tools offered on the market or through open-source perform this task, there is often a lack of standardization, making leveraging these tools costly or complicated. As DoorDash ...

Santosh Banda 24 Minute Read

Backend General

Examining Problematic Memory in C/C++ Applications with BPF, perf, and Memcheck

As applications grow in complexity, memory stability is often neglected, causing problems to appear over time. When applications experience consequences of problematic memory implementations, developers may find it difficult to pinpoint the root cause. While there are tools available that automate detecting memory issues, those tools often require re-running the application in special environments, resulting ...

Filip Busic 47 Minute Read