Fullstack AI Engineer

spawn; San Francisco (CA); On-site; USD 140,000 - 200,000; Full time

Job summary

Spawn is seeking a fullstack engineer to tackle ambitious AI problems, building elegant frontend in TypeScript and wiring scalable AWS infrastructure.

In this role, you’ll prototype a new agent framework, scale a real-time preview engine, and help write specs rather than simply follow them. You’ll own features end-to-end and participate in architecture discussions, shaping the product with creativity.

Qualifications

• Build frontend experiences in TypeScript with a focus on product feel.
• Prototype AI-powered agent frameworks and real-time preview engines.
• Collaborate to define specs and architecture, not just follow them.

Responsibilities

• Prototype a new agent framework using LLM-generated app logic.
• Scale a real-time preview engine that updates as a user types their prompt.
• Help write specs and participate in architecture discussions, delivering end-to-end features.

Skills

TypeScript

Frontend development

AWS

LLMs

Job description

Spawn /spɔːn/,verb. the act of creating something from nothing.

Join us in turning words into worlds.

As a fullstack engineer at Spawn, you’ll work on some of the most technically ambitious and creatively expressive problems in AI.

• One week you might be prototyping a new agent framework using LLM-generated app logic.
• The next, you might be scaling a real-time preview engine that updates as a user types their prompt.
• You won’t be handed specs – you’ll help write them.

We expect the right person might love building with LLMs, know how to ship magical frontend experiences in Typescript, and be just as comfortable wiring up infrastructure in AWS. But more than any specific technology, we’re looking for someone who obsesses over product feel, and wants to be part of defining a new category.