Staff Backend Engineer, Custody Core (Crypto Security)
Core
Design and develop core services for SoFi's digital asset custody platform, including secure transaction orchestration, wallet infrastructure, and blockchain integration.
Role type
Staff Backend Engineer (Crypto Infrastructure)
Builds
Digital asset custody platform, secure transaction services, wallet lifecycle management, and institutional settlement integrations
Domain
Financial Services / Cryptocurrency / Blockchain
Deliverable
production ML models | product features
Required skills
Distributed systems design, Cloud-native architecture, REST API design, Asynchronous messaging, Event-driven architecture, Cryptographic controls, Production incident response, Scalability optimization
Preferred skills
Digital assets experience, Custody platform integration (Fireblocks/BitGo), Financial services infrastructure, Blockchain transaction lifecycle, Distributed consensus
Technologies
AWS, PostgreSQL, Redis, Kafka
Responsibilities
Design and build backend services for digital asset custody; Develop secure transaction orchestration for deposits, withdrawals, and transfers; Build integrations with custody providers and blockchain infrastructure; Design APIs for retail and institutional crypto products; Improve platform resiliency via redundancy and disaster recovery; Optimize transaction throughput with strict security controls; Partner with Security Engineering on cryptographic controls.
Seniority
Staff, hands-on IC with strategic impact
