General - DoorDash Engineering Blog

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General Pioneering DoorDash’s Platform Evolution in Pittsburgh

Learn about the platform evolution team DoorDash is building in our newest Engineering office in Pittsburgh PA

Brian Bailey

3 Minute Read

General

Building Frictionless MFA to Protect Against Account Takeovers

Multi-factor authentication is key to preventing account takeovers, but must be used carefully in order to not disrupt the user experience

Qi Guo 8 Minute Read

General

DoorDash 2021 Summer Intern Survey Post

DoorDash interns get experience that is not taught in any classroom. Learn about some of the projects they worked on this past summer.

Austin Kim 16 Minute Read

Culture General

Drumroll! DoorDash Engineering is coming to Chicago.

Learn about DoorDash's newest office in Chicago and all the opportunities to work on the Merchant Finance team

Varsha Dudani 5 Minute Read

Culture General

6 Principles for Building a World Class TPM Team

Learn about the principles DoorDash used to build and run a high-functioning and impactful TPM organization.

Sophia Vicent 18 Minute Read

General

From Monolith to Microservices: Reducing the Migration’s Pain Points

In this second article in our monolith to microservices series we talk about the benefits of the monolith we needed to replace or mitigate

Ivar Lazzaro 17 Minute Read

General

Our June 19th Outage Explained

Learn more about the outage DoorDash suffered on June 19th 2021. What happened, and our steps to mitigate similar events in the future.

Ryan Sokol 6 Minute Read

General

DoorDash Expands International Presence with Toronto Tech Hub

DoorDash announces the opening of its newest and first international engineering office in Toronto.

Qaiser Habib 3 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

Culture General

What to Expect from DoorDash’s Technical Interview

Follow these helpful tips when preparing for DoorDash's technical interview.

Kirtan Patel 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

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