Staff Backend Engineer, Vaults

Role overview A small, highly technical engineering group is hiring a Staff Backend Engineer to build the offchain infrastructure behind decentralized finance protocols and vault products. The role sits at the intersection of onchain smart contracts and the applications layered on top, owning systems where correctness, reliability, performance, and security directly affect user funds and protocol integrity. It is a high-autonomy position with significant ownership across data pipelines, services, and APIs that interact closely with onchain state.

Responsibilities - Design, build, and operate backend infrastructure supporting new DeFi protocols and vault products - Develop vault management, curation, and constraint-based allocation systems - Build high-throughput blockchain indexers and data ingestion pipelines - Construct secure, performant, and well-documented APIs for protocol and application consumers - Partner with quantitative engineers on production systems, data pipelines, and services that run financial models, while smart contract engineers own onchain integration and enforcement - Apply strong judgment around correctness, reliability, and security in systems handling real capital

Requirements - Extensive experience designing and operating production backend systems - Proficiency with event-driven backend architectures - Strong PostgreSQL knowledge - Background in blockchain, DeFi, financial infrastructure, or another environment involving real capital - Ability to work independently in a high-autonomy environment - Sound judgment around correctness, reliability, and security tradeoffs

Nice to have - Experience with cross-chain blockchain indexing or large-scale data ingestion - Experience designing constraint, optimization, solver, or allocation systems - Experience reading smart contracts and integrating with EVM-based protocols - Hands-on experience operating financial systems where correctness and reliability affect capital - Familiarity with Kafka and ClickHouse or similar analytical databases

Benefits and work setup - Lean, globally distributed team culture focused on impact and long-term thinking - Equal opportunities employer welcoming candidates from diverse backgrounds