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fal

Senior/Staff Software Engineer, Core Product Systems

fal
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about 1 month ago
San Francisco, CA, USASenior / Staff+
H1B Sponsor

Base Salary

$180k - $250k/yr

Responsibilities

  • Own billing and pricing systems, including metering, usage roll-ups, pricing logic, and customer and administrative surfaces.
  • Design APIs, data models, and product contracts that other teams and customers can safely depend on.
  • Expand ownership to accounts, access and identity, API keys, model discovery, and usage, cost, and access surfaces.
  • Engineer for correctness and resilience through source-of-truth design, idempotency, auditability, permissions, observability, and graceful failure.
  • Own operational health and participate in on-call for the systems built.
  • Partner with product, infrastructure, finance, revenue, security, and customer-facing teams to turn manual workflows into durable systems.

Requirements

  • 5+ years building reliable production backend systems with Python and/or TypeScript.
  • Strong PostgreSQL skills, including schema design, queries, migrations, and performance.
  • Experience designing APIs and data models for complex product or business domains.
  • Ability to ship product and internal surfaces using React, Next.js, and TypeScript.
  • Strong systems and product judgment involving source of truth, idempotency, auditability, permissions, observability, workflows, edge cases, and customer trust.
  • Experience with usage-based billing, metering, or pricing systems such as Stripe, Orb, or Metronome is a differentiator.
  • Experience with identity and access systems, developer platforms, model registries, usage or observability dashboards, generative AI, inference APIs, or developer-facing AI products is a plus.
  • Comfort working in ambiguous, cross-functional environments where product, business logic, and infrastructure overlap.

Benefits

  • Competitive salary and equity
  • Learning and growth opportunities
  • Relocation assistance and visa sponsorship to San Francisco
  • Health, dental, and vision benefits
  • Regular team events and offsites