General - DoorDash Engineering Blog

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General Atlantis Hardening and Review Fatigue

Explore the nuances of using infrastructure-as-code (IaC) with PR automation when making infrastructure changes.

Dmitriy Dunin

Ron Waisberg

8 Minute Read

General Machine Learning

Best Practices for Regression-free Machine Learning Model Migrations

Migrating functionalities from a legacy system to a new service is a fairly common endeavor, but moving machine learning (ML) models is much more challenging. Successful migrations ensure that the new service works as well or better than its legacy version. But the complexity of ML models makes regressions more likely to happen and harder ...

Ying Chi 14 Minute Read

General

Rebuilding our Pricing Framework for Better Auditability, Observability, and Price Integrity

Learn how we migrated our pricing logic to microservices

Zhengli Sun 9 Minute Read

General

Using java.time to Increase Code Readability and Reduce Errors

Given the importance of time in our services and the need to scale, java.time works much better than primitives.

Kevin Huang 6 Minute Read

General

Using a Decision Engine to Power a First Class Customer Experience

DoorDash's decision engine empowers customer service agents to deliver consistent, effective solutions for customer issues.

Preetha Vijaya Saraswathi

Derrick Hu

Kevin Nguyen

Alex Liu 8 Minute Read

Backend Culture Data General Machine Learning Mobile Web

2020 Hindsight: Building Reliability and Innovating at DoorDash

DoorDash recaps a number of its engineering highlights from 2020, including its microservices architecture, data platform, and new frontend development.

WayneCunningham 8 Minute Read

General

Future-proofing: How DoorDash Transitioned from a Code Monolith to a Microservice Architecture

In 2019, DoorDash’s engineering organization initiated a process to completely reengineer the platform on which our delivery logistics business is based. This article represents the first in a series on the DoorDash Engineering Blog recounting how we approached this process and the challenges we faced. In traditional web application development, engineers write code, compile it, ...