Variance - Product Engineer

San Francisco / Californiafull-timemid

EngineeringProduct Engineer

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Quick Summary

Overview

At Variance we are teaching machines to make the hardest judgement calls at scale. That means building AI agents for the high-precision gray-area of stopping fraud, scams, and abuse. We’re a small,

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EngineeringProduct Engineer

At Variance we are teaching machines to make the hardest judgement calls at scale. That means building AI agents for the high-precision gray-area of stopping fraud, scams, and abuse.

We’re a small, talent-dense team in San Francisco, tackling problems that touch billions of events and entities. Our customers include several Fortune 500s and global marketplaces and we're scaling to free millions of hours of human effort. If you thrive on extreme ownership, moving fast, and working directly with founders, you’ll feel at home here.

You’re a fit if you:

Care deeply about craftsmanship and have strong opinions about your work
After familiar with our tech stack: React/Next.js, Typescript, MySQL, and ClickHouse for agent context but we value strong fundamentals over any specific technology.
Thrive on owning features end-to-end, from backend to polished UI to production
Are thrilled by the prospect of building AI interfaces being used to literally save lives

What you’ll do

Ship features end-to-end with iteration cycles measured in hours, not quarters
Scale our product into new industries and workflows through fast pilots and live demos
Work directly with the founders on massive-scale, frontier problems
Design systems where AI must decide in real time, balancing precision, speed, and user trust.

Our culture

We believe in ownership, urgency, and craft. We enjoy spirited debate, wild ideas, and building things we're proud of. We're fully in-person in San Francisco.

What we offer