SoFi Logo

SoFi

Staff Backend Engineer, Custody Core (Crypto Security)

Reposted 8 Days Ago
Easy Apply
Hybrid
Frisco, TX
154K-264K Annually
Senior level
Easy Apply
Hybrid
Frisco, TX
154K-264K Annually
Senior level
Design and build backend services for a digital asset custody platform, including secure transaction orchestration, wallet lifecycle management, integrations with custody providers and blockchain infrastructure, resilient APIs, high-availability systems, observability, and close collaboration with security and product teams.
The summary above was generated by AI

Employee Applicant Privacy Notice

Who we are:

Shape a brighter financial future with us.

Together with our members, we’re changing the way people think about and interact with personal finance.

We’re a next-generation financial services company and national bank using innovative, mobile-first technology to help our millions of members reach their goals. The industry is going through an unprecedented transformation, and we’re at the forefront. We’re proud to come to work every day knowing that what we do has a direct impact on people’s lives, with our core values guiding us every step of the way. Join us to invest in yourself, your career, and the financial world.

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.

This role sits at the center of crypto infrastructure, working closely with Security, Platform Engineering, Product, Treasury, and Operations to build highly available systems responsible for protecting customer assets.

The ideal candidate enjoys solving distributed systems problems, designing resilient APIs, and building financial infrastructure where security and reliability are first-class requirements.

What you’ll do:

  • 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

What you’ll need:

  • 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

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
  • Understanding of distributed consensus and cryptographic systems
  • Experience supporting institutional financial platforms
Compensation and Benefits
The base pay range for this role is listed below. Final base pay offer will be determined based on individual factors such as the candidate’s experience, skills, and location. 
 
To view all of our comprehensive and competitive benefits, visit our Benefits at SoFi page!
SoFi provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion (including religious dress and grooming practices), sex (including pregnancy, childbirth and related medical conditions, breastfeeding, and conditions related to breastfeeding), gender, gender identity, gender expression, national origin, ancestry, age (40 or over), physical or medical disability, medical condition, marital status, registered domestic partner status, sexual orientation, genetic information, military and/or veteran status, or any other basis prohibited by applicable state or federal law.The Company hires the best qualified candidate for the job, without regard to protected characteristics.Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.New York applicants: Notice of Employee RightsSoFi is committed to an inclusive culture. As part of this commitment, SoFi offers reasonable accommodations to candidates with physical or mental disabilities. If you need accommodations to participate in the job application or interview process, please let your recruiter know or email [email protected].Due to insurance coverage issues, we are unable to accommodate remote work from Hawaii or Alaska at this time.
Internal Employees
If you are a current employee, do not apply here - please navigate to our Internal Job Board in Greenhouse to apply to our open roles.

Similar Jobs at SoFi

An Hour Ago
Easy Apply
Remote or Hybrid
United States
Easy Apply
106K-198K Annually
Mid level
106K-198K Annually
Mid level
Fintech • Mobile • Software • Financial Services
Manage and scale the Employee Stock Purchase Plan (ESPP) and full-value awards (RSU/PSU), oversee daily equity operations, approve analyst work, lead automation and integrations, operationalize global mobility and tax sourcing, and design employee education on equity and LTI.
Top Skills: AlteryxExcelFidelity Netbenefits (Sps)PythonSQL
Yesterday
Easy Apply
Hybrid
Easy Apply
138K-172K Annually
Senior level
138K-172K Annually
Senior level
Fintech • Mobile • Software • Financial Services
Owns fraud strategy across business onboarding, SMB lending, deposits, and commercial payments. Designs KYB, beneficial ownership, entity resolution, payment fraud, and credit-abuse controls; builds SQL and Python analytics; and implements rules through a governed rules engine. Partners with Fraud Operations, Credit, AML/BSA, EPD, and product teams to monitor performance, balance fraud mitigation with customer experience, and lead strategic initiatives.
Top Skills: AchBaselayerCamundaEin ValidationInscribeKybLexisnexisMiddeskOcrolusOscilarPersonaPlaidPythonReal-Time PaymentsSafeSentilinkSocureSQLTin MatchingTruepicVeriffWire Payments
Yesterday
Easy Apply
Hybrid
Easy Apply
160K-275K Annually
Expert/Leader
160K-275K Annually
Expert/Leader
Fintech • Mobile • Software • Financial Services
Owns SoFi’s authentication and device trust strategy across web and mobile. Designs defenses against account takeover, scams, credential attacks, MFA abuse, phishing, emulator automation, and payment fraud. Leads device intelligence, signal development, risk decisioning, step-up authentication, account recovery, 3DS, CNP, and tokenization strategies. Orchestrates fraud technology vendors, translates threat intelligence into policy changes, establishes performance metrics, and mentors fraud strategy teams while balancing fraud prevention, customer friction, and growth.
Top Skills: 3DsBehavioral BiometricsBiocatchDevice FingerprintingDevice IntelligenceEmulator DetectionEntity ResolutionFido2IovationNetwork ReputationOauthOidcPasskeysPythonSQLThreatmetrixTokenizationTransmit Security MosaicVm Detection

What you need to know about the Los Angeles Tech Scene

Los Angeles is a global leader in entertainment, so it’s no surprise that many of the biggest players in streaming, digital media and game development call the city home. But the city boasts plenty of non-entertainment innovation as well, with tech companies spanning verticals like AI, fintech, e-commerce and biotech. With major universities like Caltech, UCLA, USC and the nearby UC Irvine, the city has a steady supply of top-flight tech and engineering talent — not counting the graduates flocking to Los Angeles from across the world to enjoy its beaches, culture and year-round temperate climate.

Key Facts About Los Angeles Tech

  • Number of Tech Workers: 375,800; 5.5% of overall workforce (2024 CompTIA survey)
  • Major Tech Employers: Snap, Netflix, SpaceX, Disney, Google
  • Key Industries: Artificial intelligence, adtech, media, software, game development
  • Funding Landscape: $11.6 billion in venture capital funding in 2024 (Pitchbook)
  • Notable Investors: Strong Ventures, Fifth Wall, Upfront Ventures, Mucker Capital, Kittyhawk Ventures
  • Research Centers and Universities: California Institute of Technology, UCLA, University of Southern California, UC Irvine, Pepperdine, California Institute for Immunology and Immunotherapy, Center for Quantum Science and Engineering

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account