Software Engineer (Rollup)

Location: US or Europe

Salary: $200K - $250K

About the company Our client is building decentralised infrastructure for the Ethereum ecosystem. Their flagship liquid restaking protocol is designed to lower barriers for at-home stakers and counter centralisation risks from existing staking pools. They are also building an Ethereum based rollup that enables credibly neutral transaction sequencing and ensures value flows back to Ethereum’s L1 validators.

They are backed by leading crypto VCs, major exchanges and global financial institutions, and are expanding the team with people ready to shape the future of Ethereum’s infrastructure. The role We’re looking for an ambitious Senior Blockchain Engineer and Researcher to play a key role in advancing the company’s Ethereum Layer 2 rollup.

Your primary focus will be designing and developing smart contracts and execution machines. You’ll build smart contract solutions that aggregate and optimise transaction batches, and re-architect existing rollup solutions to become based. These contracts will power decentralised sequencing and validator reward mechanisms, contributing to a sustainable rollup ecosystem.

Requirements 4+ years of professional blockchain development experience Extensive experience architecting blockchains and rollups Hands-on experience with Layer 2 solutions such as Arbitrum, Optimism, Taiko or other rollup architectures, with a solid understanding of decentralised sequencing and the Ethereum L2 ecosystem Experience developing secure smart contracts, with a focus on unit and fuzz testing using Foundry Extensive experience with deployment and security best practices Personal attributes Research-oriented mindset with the grit to deliver an exceptional product Open to feedback without ego and hungry to explore new ideas Independent problem solver with a strong sense of ownership, plus solid communication and team skills Nice to have TypeScript and backend development Experience working in a scrum or agile setup