- London, London London, United Kingdom
- Full-time · Senior
- 7+ years
The FinApps Access team at Fireblocks builds the backbone of on-chain access for some of the world's largest financial institutions and crypto-native organizations. We operate at the intersection of blockchain protocol engineering and enterprise-grade reliability — designing systems that route, protect, and optimize transactions across dozens of chains at scale.
Responsibilities
- Design and build robust, scalable backend services supporting high-volume on-chain transaction flows across multiple blockchain networks — both EVM and non-EVM.
- Own end-to-end development of backend components and APIs — from architecture decisions to production deployment.
- Lead integrations with DeFi protocols, on-chain data sources, and blockchain nodes across a wide range of chains and ecosystems.
- Research and evaluate emerging blockchain technologies, protocols, and standards to keep Fireblocks at the cutting edge.
- Optimize existing production systems for performance, reliability, and security — reducing latency and increasing throughput.
Requirements
- Bachelor of Science (B.Sc.) or equivalent degree/experience
- Nice to have: DeFi protocols
- Nice to have: AMMs
- Nice to have: lending markets
- Nice to have: bridging infrastructure