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SoFi is seeking a Staff Backend Engineer to design and build the next generation of its digital asset custody platform. This role sits at the center of crypto infrastructure, working closely with Security, Platform Engineering, Product, Treasury, and Operations teams to build highly available systems responsible for protecting customer assets.
Key responsibilities include designing and building backend services supporting SoFi's digital asset custody platform; developing secure transaction orchestration services for deposits, withdrawals, transfers, staking, and treasury operations; building integrations with custody providers, blockchain infrastructure, and institutional settlement networks; designing APIs supporting retail and institutional crypto products; developing services supporting wallet lifecycle management and blockchain interactions; improving platform resiliency through redundancy, disaster recovery, observability, and automated recovery mechanisms; optimizing transaction throughput while maintaining strict security controls; building scalable event-driven architectures supporting blockchain state changes and transaction processing; partnering closely with Security Engineering to implement cryptographic controls and authorization workflows; and collaborating with Product and Infrastructure teams to deliver new digital asset capabilities.
Required qualifications include 7+ years of backend software engineering experience, strong experience with distributed systems and cloud-native architectures, experience building highly available production services, strong understanding of REST APIs, asynchronous messaging, and event-driven systems, experience with AWS or comparable cloud platforms, experience with PostgreSQL, Redis, Kafka, or similar technologies, strong understanding of CI/CD and modern software development practices, and excellent debugging and production incident response skills.
Nice-to-have qualifications include experience working with digital assets or blockchain infrastructure, experience integrating with custody platforms such as Fireblocks, BitGo, or Anchorage, experience building financial services infrastructure, familiarity with blockchain transaction lifecycle and wallet architecture, experience designing secure approval workflows, understanding of distributed consensus and cryptographic systems, and experience supporting institutional financial platforms.
