SoFi

Staff Backend Engineer, Custody Core (Crypto Security)

SoFi
Apply
2 months ago
Jacksonville, FL, USA +3 moreStaff+
H1B sponsor

Responsibilities

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

Requirements

  • At least 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.
  • Excellent debugging and production incident response skills.
  • Digital assets or blockchain infrastructure experience is preferred.
  • Experience integrating with Fireblocks, BitGo, or Anchorage is preferred.
  • Financial services infrastructure experience is preferred.
  • Familiarity with blockchain transaction lifecycles and wallet architecture is preferred.
  • Experience designing secure approval workflows is preferred.
  • Understanding of distributed consensus and cryptographic systems is preferred.
  • Experience supporting institutional financial platforms is preferred.

Benefits

  • Comprehensive benefits are available through SoFi's Benefits page.
  • Remote work cannot be accommodated from Hawaii or Alaska due to insurance coverage issues.

Categories

SoFi

About SoFi

5,001-10,000 employees

SoFi provides consumer banking, lending, and investing products, including student-loan refinancing, personal loans, mortgages, checking and savings, a credit card, and brokerage. It earns interest and fee revenue across SoFi Bank, N.A., and related subsidiaries, serving U.S. consumers via a mobile app. Founded in 2011 and headquartered in San Francisco, SoFi Technologies is publicly traded on Nasdaq under the ticker SOFI.

Contact me