Founding Backend Engineer, Billing & Platform

fal; San Francisco (CA); On-site; USD 180,000 - 230,000; Full time

Benefits offered by this job

Competitive salary and equity

Relocation assistance + visa sponsor

Health, dental, and vision benefits

Regular team events and offsites

Job summary

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.

As a founding member of fal's core product systems, you will own billing, pricing, accounts, access, API keys, and model discovery, shaping systems that directly impact revenue and customer trust.

Qualifications

• 5+ years building reliable, production backend systems (Python and/or TypeScript).
• Strong PostgreSQL — schema design, queries, migrations, performance.
• API & data-model design for complex product or business domains.
• Can ship product and internal surfaces in React / Next.js / TypeScript.
• Strong systems and product judgment; cross-functional collaboration.

Responsibilities

• Own billing and pricing first — metering, usage roll-ups, pricing logic, and related customer surfaces.
• Design APIs, data models, and product contracts for cross-team usage.
• Grow ownership to accounts, access/identity, API keys, and model discovery.
• Engineer for correctness, idempotency, observability, and on-call reliability.
• Collaborate with product, infra, finance, revenue, security, and customer teams.

Skills

Backend systems design

Python/TypeScript

PostgreSQL

API design

Observability & reliability

Tools

PostgreSQL

SQL

TypeScript

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.

As a founding member of fal's core product systems, you will own billing, pricing, accounts, access, API keys, and model discovery, shaping systems that directly impact revenue and customer trust.