Backend
Improving Fault Tolerance with RPC Fallbacks in DoorDash’s Microservices
Failures are inevitable, so building fault tolerance through retries, replication, and fallbacks is critical to ensuring a positive user experience
Leart
Gjoni
Backend
Enabling Faster Financial Partnership Integrations Using Cadence
Read the technology review we conducted to find the right task management technology for Dashpass onboarding. Learn why we chose Cadence
Wenhan
Shen
Lev
Neiman
Backend
3 Changes to Expand DoorDash’s Product Search Beyond Delivery
Focusing on delivery allowed DoorDash to build a food search engine, but expanding beyond food with more SKUs and merchants requires a substantial upgrade.
Sonic
Wang
Xiaochang
Miao
Yongshuang
Wang
Backend Data
How We Applied Client-Side Caching to Improve Feature Store Performance by 70%
Learn about which caching libraries we considered, the analysis of our system and how we were able to use experiments to validate our approach.
Kornel
Csernai
Backend
Using Fault Injection Testing to Improve DoorDash Reliability 
When failure is inevitable, building fault tolerance with fault injection testing ensures that failures do not bring the platform down with them
Christopher
Meiklejohn
Backend General
How to leverage functional programming in Kotlin to write better, cleaner code
Is functional programming a good paradigm to use for Kotlin development? Read this guide for direct coding comparisons between FP and OOP
Jerry
Liu
Backend
Moving e2e testing into production with multi-tenancy for increased speed and reliability
Learn how we used multi-tenancy to improve production testing standards, speed and effectiveness in this new technical blog post
Santosh
Banda
Backend Web
Building a Unified Chat Experience at DoorDash
Learn how we unified our chat across all our platforms by leveraging common UI components and an extensible backend and automated it with NLP
Dan
Behar
Backend
Using Kotlin, React, and Postgres to Create a No-Code Platform for Building Customized Workflows
Building customized workflows often requires "buy" solution. Learn how we built a no code platform with Kotlin, React and Postgres
Kishore
Guruswamy
Backend
Building a Platform to Translate DoorDash into Multiple Languages
Learn how DoorDash automated the process of creating translations to enable us to offer a localized experience as we expand globally
Venkataramanan
Kuppuswamy
Arun
Dharumar
Saagarikha
Srinivasan
Backend
Using CloudFront Signed URLs with Built-In Authenticated Access to S3
Read this extremely detailed example of how to set up a cheap, public, HTTPS service that can serve up files via signed URLs.
Steve
Hoffman
Backend
Scaling a routing algorithm using multithreading and ruin-and-recreate
Learn how DoorDash expanded its logistics platform with a ruin and recreate based algorithm
Ben
Katz
Santosh
Banda
Misa
Gohara
Leart
Gjoni
Wenhan
Shen
Lev
Neiman
Sonic
Wang
Yongshuang
Wang
Kornel
Csernai
Jerry
Liu
Dan
Behar
Kishore
Guruswamy
Venkataramanan
Kuppuswamy
Arun
Dharumar
Saagarikha
Srinivasan
Ben
Katz