The Up Next Company

Engineer

Join Ephemera, Build the Future of Onchain Messaging
Lead design, development, and maintenance of mission-critical blockchain systems focused on tokenomics
Own end-to-end lifecycle of smart contracts: architecture, implementation, audits, deployment, upgrades
Write and deploy smart contracts governing the economics of the XMTP protocol
Design novel incentive models to reward offchain node operators and collect messaging fees
Lead development of complex token contracts: ERC-20, staking, governance, vesting, distribution, liquidity management
Architect upgradeable contracts using proxy patterns for safe, controlled change management
Champion security best practices, lead internal reviews, coordinate third-party audits, implement continuous monitoring
Manage large-scale funds in production ensuring availability, integrity, and protection of treasury and user assets
Partner with economics, product, and legal to translate tokenomics into deployable contracts
Establish engineering best practices, mentor engineers, raise the bar for security, efficiency, maintainability

Staff Smart Contracts Engineer