SoFi

Staff Software Engineer, AI Developer Experience

SoFi
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1 day ago
Seattle, WA, USA or San Francisco, CA, USAStaff+
H1B sponsor

Responsibilities

  • Own the end-to-end design, development, and operation of AI Gateway, model routing, evaluation platform, and harness vending systems.
  • Develop usage telemetry, cost allocation, and chargeback mechanisms for transparent AI spending visibility.
  • Lead feature architecture, implementation planning, workstream parallelization, and cross-team dependency alignment.
  • Facilitate design reviews, evaluate architectural trade-offs, and establish coding and architecture standards.
  • Automate build, testing, and deployment workflows; resolve production incidents and implement post-incident improvements.
  • Maintain a 6-to-12-month technical vision and make build-versus-adopt decisions across the tooling ecosystem.
  • Partner with internal engineering teams to understand workflows, drive adoption, and improve platform capabilities.
  • Mentor engineers through code and design feedback.

Requirements

  • Bachelor’s degree plus 3–4 years of experience or master’s degree plus 2–3 years of experience in software engineering, computer science, or a related field.
  • Advanced programming expertise in at least one of Java, Kotlin, Python, Go, or Scala.
  • Proven expertise in distributed systems, including security, concurrency, fault tolerance, horizontal scaling, and idempotence trade-offs.
  • Track record of technical leadership in feature delivery, cross-functional alignment, and production-platform architecture.
  • Hands-on experience building AI-assisted developer tooling and LLM-based systems, including coding assistants, autonomous agents, prompt engineering, or tool-execution frameworks.
  • Hands-on experience with AWS or GCP, containerization, modern CI/CD pipelines, and operational on-call ownership.
  • Product-oriented mindset focused on internal developers, platform adoption, and user sentiment.
  • Strong written and verbal communication skills, including technical design documentation and stakeholder presentations.
  • Experience building or operating LLM evaluation pipelines, model proxies, or semantic request-routing layers is preferred.
  • Experience with internal developer platforms, developer tooling, CLI workflows, cost telemetry, usage-based metering, FinOps instrumentation, or regulated fintech environments is preferred.
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.

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