Staff Backend Engineer: Digital Asset Custody Core

SoFi; Frisco (TX); On-site; USD 150,000 - 210,000; Full time

Job summary

SoFi is seeking a Staff Backend Engineer to help build the next generation of our digital asset custody platform. You will design core services powering custody, blockchain processing, wallet infrastructure, and institutional products.

Collaborate across security, platform engineering, product, treasury, and operations to build highly available systems protecting customer assets. The ideal candidate enjoys solving distributed systems problems, designing resilient APIs, and building financial

Qualifications

• 7+ years of backend software engineering experience.
• 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.
• Excellent debugging and production incident response skills.

Responsibilities

• Design and build backend services supporting SoFi's digital asset custody platform.
• Develop secure transaction orchestration services for deposits, withdrawals, transfers, staking, and treasury operations.
• Build integrations with custody providers, blockchain infrastructure, and institutional settlement networks.
• Design APIs supporting retail and institutional crypto products.
• Develop services supporting wallet lifecycle management and blockchain interactions.
• Improve platform resiliency through redundancy, disaster recovery, observability, and automated recovery mechanisms.
• Optimize transaction throughput while maintaining strict security controls.
• Build scalable event-driven architectures supporting blockchain state changes and transaction processing.
• Partner closely with Security Engineering to implement cryptographic controls and authorization workflows.
• Collaborate with Product and Infrastructure teams to deliver new digital asset capabilities.

Skills

Backend engineering

Distributed systems

REST APIs

Asynchronous messaging

AWS cloud

PostgreSQL

Redis

Kafka

CI/CD

Incident response

Tools

Fireblocks

BitGo

Anchorage

Job description

SoFi is seeking a Staff Backend Engineer to help build the next generation of our digital asset custody platform. You will design core services powering custody, blockchain processing, wallet infrastructure, and institutional products.

Collaborate across security, platform engineering, product, treasury, and operations to build highly available systems protecting customer assets. The ideal candidate enjoys solving distributed systems problems, designing resilient APIs, and building financial