AltLayer, a layer 2 scalability blockchain built on Ethereum, said it appointed Amrit Kumar as chief operating officer.

Kumar, 34, will be responsible for executing the company’s global operations strategy and supporting its aim of building custom roll-ups-as-a-service for Web3 applications and innovators, the Singapore-based firm said in a statement.

Before AltLayer, Kumar co-founded Zilliqa Research, where he held the positions of president and chief science officer.

AltLayer employs about 25 people and builds pay-as-you-go blockchains for decentralized applications (dapps) and Web3 applications. A dapp is a digital app that uses blockchain technology to keep users’ data out of the hands of the organizations behind it. Web3 is the next generation of the internet that promotes decentralized protocols and aims to reduce dependency on large tech companies.

Layer 2 refers to a set of off-chain systems or separate blockchains built on top of layer 1s. A layer 1 network is the base layer, or the underlying infrastructure of a blockchain.