How DoorDash Rearchitected its Cache to Improve Scalability and Performance

DoorDash rearchitected the heterogeneous caching system they were using across all of their microservices and created a common, multi-layered cache providing a generic mechanism and solving a number of issues coming from the adoption of a fragmented cache.

How Docs-as-Code Helped Pinterest Improve Documentation Quality

Over the past few years, Pinterest engineers have been working to adopt Docs-as-Code across the organization. By using the same tools and processes for both code and documentation, they’ve improved overall documentation quality and team satisfaction. The shift also helped transform Pinterest’s documentation culture, fostering collaboration, improving quality control, discoverability, and more.

Rust Rewrite Enables Cloudflare to Boost CDN Performance and Enhance Security

By adopting Rust for one of its core subsystems, Cloudflare succeeded in reducing response time by 10 ms and boosting performance by 25%. Additionally, the company emphasized that Rust made their system more secure and reduced development time.

Uber Adopts Amazon OpenSearch for Semantic Search to Better Capture User Intent

To improve search and recommendation user experiences, Uber migrated from Apache Lucene to Amazon OpenSearch to support large-scale vector search and better capture search intent. This transition introduced several infrastructure challenges, which Uber engineers addressed with targeted solutions.

Enhancing A/B Testing at DoorDash with Multi-Armed Bandits

While experimentation is essential, traditional A/B testing can be excessively slow and expensive, according to DoorDash engineers Caixia Huang and Alex Weinstein. To address these limitations, they adopted a “multi-armed bandits” (MAB) approach to optimize their experiments.