# Senior/Staff Software Engineer, Core Product Systems at Fal.ai

- Company: Fal.ai
- What the company does: Easiest & most cost-effective way to use Gen AI. fal.ai is how devs integrate dozens of generative media models. FLUX, Kling, Hailuo +1000 more. Backed by Bessemer, Kleiner Perkins and Sequoia.
- Company website: https://fal.ai/
- Type: Startups (AI role)
- Level: Senior
- Location: San Francisco
- Work setup: On-site
- Pay: $180K to $250K base salary per year (USD)
- Posted: 2026-07-06
- Apply by: 2026-10-08
- Apply: https://jobs.ashbyhq.com/fal-ai/eca6ed6d-9229-4caf-a825-3e1a86d453d1
- Page: https://www.1752.vc/careers/jobs/fal-ai-senior-staff-software-engineer-core-product-systems/

## About the role

This is a founding role on the small team that owns fal's core product systems — the connected tissue the whole business runs on: usage, billing, pricing, accounts, access, API keys, and model discovery. You'll join early, own these systems end-to-end (from data model through rollout to operational health), and design the APIs and product surfaces other teams and customers depend on. These are backend systems where correctness underpins real revenue and customer trust.

## What they're looking for

- 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 judgment (source of truth, idempotency, auditability, permissions, observability) and product judgment (workflows, edge cases, customer trust)
- Thrives in ambiguous, cross-functional work where product, business logic, and infra overlap, ships a pragmatic v1 that can evolve. Priorities move fast — you're comfortable with that

Tags: Engineering