F

Founding Backend Engineer - Core Product Systems

fal • United States
Visa Sponsorship Relocation
This Job is No Longer Active This position is no longer accepting applications

Founding role on a small team owning fal's core product systems including billing, pricing, accounts, and API keys. You will design and evolve high-impact backend systems in Python and TypeScript, ensuring correctness, resilience, and operational health. Requires 5+ years of experience in production backend systems with strong PostgreSQL and API design skills.

Key Highlights
Founding role on a small, high-leverage team (~4 people) owning core business-critical systems.
Primary focus on billing, fraud, and pricing systems that directly impact revenue and customer trust.
End-to-end ownership from data model design to rollout and operational health/on-call.
Key Responsibilities
Own billing and pricing systems including metering, usage roll-ups, pricing logic, and customer/admin surfaces.
Design APIs, data models, and product contracts for other teams to build on.
Expand ownership to accounts, access/identity, API keys, and model discovery systems.
Engineer for correctness and resilience, focusing on source of truth, idempotency, auditability, permissions, and observability.
Own operational health and on-call duties for the systems built.
Partner across product, infra, finance, revenue, security, and customer-facing teams to automate manual workflows.
Technical Skills Required
Python PostgreSQL TypeScript
Benefits & Perks
Competitive salary and equity
Relocation assistance
Visa sponsorship
Health, dental, and vision insurance
Regular team events and offsites
Nice to Have
Experience with usage-based billing, metering, or pricing tools (e.g., Stripe, Orb, Metronome).
Experience with identity and access management, including permissions, SSO, and API keys.
Experience with developer platforms, model registries, or usage/observability dashboards.
Experience with generative AI or inference APIs.

Job Description

fal is the generative media ecosystem powering the next generation of AI products. We build the infrastructure, tools, and model access that teams need to move from idea to production, and do it at scale without compromise. For developers and enterprises, fal is the foundation that makes generative media not just possible, but practical: a unified platform where high-performance inference, orchestration, and observability come together to unlock new categories of AI-native products.As generative media reshapes industries across a market projected to grow by hundreds of billions over the next decade, fal is becoming the ecosystem that ambitious teams build on.This is a
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