Full-Stack AI Engineer

hiair.ai; San Francisco (CA); Hybrid; USD 150,000 - 190,000; Full time

Job summary

hiair.ai in San Francisco is seeking a high-ownership software engineer to ship features end-to-end, from database to pixel. You will work on Next.js frontend and a FastAPI backend with SQLAlchemy and PostgreSQL, ensuring latency, correctness, and a crafted user experience.

The role emphasizes shipping and measuring impact, with equity in a small, fast-moving team that ships to users within the week.

Qualifications

• Strong TypeScript/React and Python, and comfort owning a feature from database to pixel.
• Experience with production web apps and relational data modeling.
• Interest in LLM/agent systems; direct experience is a plus, not a requirement.
• A bias for shipping and for measuring what you shipped.

Responsibilities

• Build user-facing features end to end: React/Next.js on the front, FastAPI + SQLAlchemy + Postgres on the back.
• Extend the apply agents (LangGraph/LLM tool loops) and the surfaces that drive and observe them.
• Turn fuzzy product ideas into shipped, measured surfaces — instrument what you build and iterate on the numbers.
• Own reliability of what you ship: migrations, tests, and the deploy path to Cloud Run.

Skills

TypeScript

React

Python

Shipping mindset

Tools

Next.js

FastAPI

SQLAlchemy

PostgreSQL

Cloud Run

Job description

Ship the product end to end — Next.js on top, FastAPI and agents underneath.

Hybrid

$150,000–$190,000 + equity

You'll move from a Figma sketch to a Postgres migration in the same day, and you care about latency, correctness, and the feel of a UI in equal measure. This is a high-ownership role on a small team where what you ship reaches users the same week.

What you'll do

• Build user-facing features end to end: React/Next.js on the front, FastAPI + SQLAlchemy + Postgres on the back.
• Extend the apply agents (LangGraph/LLM tool loops) and the surfaces that drive and observe them.
• Turn fuzzy product ideas into shipped, measured surfaces — instrument what you build and iterate on the numbers.
• Own reliability of what you ship: migrations, tests, and the deploy path to Cloud Run.

What we're looking for

• Strong TypeScript/React and Python, and comfort owning a feature from database to pixel.
• Experience with production web apps and relational data modeling.
• Interest in LLM/agent systems; direct experience is a plus, not a requirement.
• A bias for shipping and for measuring what you shipped.