Senior On-Chain Backend Engineer

Fireblocks Inc. is seeking an experienced Backend/Full Stack Engineer to design and build scalable backend services for high-volume on-chain transactions.

You will own end-to-end components and APIs, lead integrations across DeFi protocols and blockchain nodes, and push for performance, reliability, and security across multi-chain ecosystems. You'll collaborate with product, protocol research, and platform teams to deliver features at scale, contributing to a mission-critical infrastructure