# Staff Backend Engineer, Custody Core (Crypto Security) at SoFi

- Company: SoFi
- What the company does: Backed by IVP.
- Company website: https://www.sofi.com
- Type: Startups
- Level: Senior
- Location: CA - San Francisco; WA - Seattle; NY - New York City; TX - Frisco; UT - Cottonwood Heights; MT - Helena; FL -...
- Work setup: On-site
- Posted: 2026-07-31
- Apply by: 2026-10-12
- Apply: https://sofi.com/careers/job/7819801003?gh_jid=7819801003
- Page: https://www.1752.vc/careers/jobs/sofi-staff-backend-engineer-custody-core-crypto-security/

## About the role

We are looking for a Staff Backend Engineer to help build the next generation of SoFi's digital asset custody platform. This engineer will design and develop the core services that power secure custody, blockchain transaction processing, wallet infrastructure, and institutional digital asset products.

## What they're looking for

- 7+ years of backend software engineering experience
- Strong experience with applied cryptography, key management architectures (HSMs, KMS), or Multi-Party Computation (MPC) protocols
- Proven experience building high-stakes financial transaction systems (e.g., trading engines, payment rails, digital asset wallets) with a zero-trust, security-first mindset
- Strong understanding of blockchain fundamentals, transaction signing lifecycles, and wallet architecture
- Strong experience with distributed systems and cloud-native architectures
- Experience building highly available production services

Tags: Information Security