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SoFi

Staff Backend Engineer, Custody Core (Crypto Security)

SoFi · CA - San Francisco; WA - Seattle; NY - New York City; TX - Frisco; UT - Cottonwood Heights; MT - Helena; FL - Jacksonville

Posted about 2 months ago

or apply directly on SoFi's site. We never take the application ourselves.

Is this posting real?

This role has been open
55 days
SoFi's roles stay open a median of 44 days
Reposted
No
Salary listed
No
7% of SoFi's roles list one
Ghost-job risk at SoFi
high
28 stale, 5 reposted of 61 open
Hiring momentum
122 roles opened in the last 90 days
↑ up vs. the prior 90 days
Last confirmed on the employer's board
2026-09-28

Measured from postings appearing on and disappearing from SoFi's own greenhouse board since 2026-08-03. Full hiring picture for SoFi.

About this role

The Staff Backend Engineer will design and develop core services for SoFi's digital asset custody platform, focusing on secure custody and blockchain transaction processing. This role involves building backend services, developing secure transaction orchestration, and improving platform resiliency while collaborating with various teams to enhance digital asset capabilities.

Our read on this posting2.4out of 5
benefits
1/5
freshness
1/5
career value
5/5
role clarity
5/5
pay transparency
0/5

Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of SoFi as an employer.

What you need

  • 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 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

Nice to have

  • 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

Worth weighing

  • No specific salary figures provided; compensation is based on individual factors
  • The role requires collaboration with multiple teams, which may indicate a dynamic work environment
  • Experience with specific technologies and systems is heavily emphasized, which may limit candidates without that background

Summarised from SoFi's posting. Read the full original.

Listed by SoFi on their greenhouse job board, last confirmed open on 2026-09-28. PitchMeAI is not the employer.

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