Facebook Engineering recently published how it built its general-purpose key-value store, known as ZippyDB. ZippyDB is Facebook’s biggest key-value store, which has been in production for more than six years. It offers flexibility to applications in terms of tunable durability, consistency, availability, and latency guarantees. (Read more on InfoQ)

Netflix recently published a blog post detailing how it built a reliable device management platform using an MQTT-based event sourcing implementation. To scale its solution, Netflix utilizes Apache Kafka, Alpakka-Kafka and CockroachDB. (Read more on InfoQ)

Slack recently published the details of how it built an email address classification engine that can determine if an email address is internal or external. Slack engineers utilized an eventually consistent near real-time representation of the data in its system and implemented a drift detection mechanism to fix erroneous data, keeping the engine’s operation in order. (Read more on InfoQ)

Uber recently shared how it re-architected its fulfilment service, one of Uber’s foundational platform services. Following a two-year-long effort involving 30+ teams and hundreds of developers, Uber engineers “built a strong foundation for modelling various types of physical fulfilment categories in the new platform and migrated all existing transportation use cases.” (Read more on InfoQ)

In a recent blog post, the PayPal engineering team published how it uses premortem analysis as part of its regular software design process. The team adopted a customized version of premortem analysis last year, which highly benefited PayPal engineering. Premortem is a strategy in which a team imagines that a project failed and then works backward to determine what could lead to this failure. (Read more on InfoQ)

Slack recently posted a detailed description of the software architecture of its new role management system. Slack needed to build a system that was more flexible than the one it previously had. It created a custom containerized Go-based permission service that integrates with its existing systems over gRPC. As a result, its customers’ admins now have granular control over what their users can do. (Read more on InfoQ)

Lightbend today announced the launch of Akka Serverless open beta, with general availability later this year. Akka Serverless is a Platform-as-a-Service (PaaS) offering that aims at cloud-native application development. It is built on Lightbend’s Akka Platform technology and delivered via a model similar to existing serverless offerings. (Read more on InfoQ)

Uber recently detailed the architecture of its internally built API gateway. It described how independent layered components handle each request in the gateway, with each layer being responsible for a different facet of the request lifecycle. A combination of YAML and Apache Thrift defines the gateway configuration, and a code-generated artifact in Go makes up the gateway implementation. (Read more on InfoQ)

eBay recently announced that it adopted AsyncAPI for its external asynchronous API contracts. In March 2021, eBay launched its first AsyncAPI-based contracts for its new business event notification capabilities. (Read more on InfoQ)

Airbnb recently described how it built Himeji, a scalable centralized authorization system. Himeji stores permissions data and performs permission checks as a central source of truth. It uses a sharded and replicated in-memory cache to improve performance and lower latencies and has served checks in production for about a year. (Read more on InfoQ)