Scaling Ethereum with Raul Jordan and Preston Van Loon

Cryptocurrency infrastructure is a new form of software. Thousands of developers are submitting transactions to Bitcoin and Ethereum, and this transaction volume tests the scalability of current blockchain implementations. The bottlenecks in scalability lead to slow transaction times and high fees.

Over the last twenty years, engineers have learned how to scale databases. We’ve learned how to scale Internet applications like e-commerce stores and online games. It’s easy to forget, but there was a time when those systems didn’t perform well either.

Scaling a blockchain is different than scaling a relational database or a microservices infrastructure. Blockchains are peer-to-peer databases with an append only ledger shared by thousands of nodes. With different scalability solutions, there are tradeoffs between decentralization, scalability, and security. As an example, in Bitcoin, the core developers are working towards deployment and adoption of lightning network. Some would argue that this approach favors scalability over decentralization.

Today’s show is about scaling Ethereum. Raul Jordan and Preston Van Loon are developers who are part of Prysmatic Labs, a team building a sharding implementation for the Go Ethereum client. In this episode, we discuss Ethereum’s approaches to scaling, including sharding and Plasma.


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ConsenSys is actively hiring talented software developers to help build the decentralized web. Learn more about Consensys projects and open source jobs at

Azure Container Service simplifies the deployment, management and operations of Kubernetes. Check out the Azure Container Service at

Airtable is hiring creative engineers who believe in the importance of open-ended platforms that empower human creativity. Check out jobs at Airtable by going to

GoCD is a continuous delivery tool created by ThoughtWorks. It’s great to see the continued progress on GoCD with the new Kubernetes integrations–and you can check it out for yourself at


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