Senior Software Engineer

FERMÀT is the leading commerce AI platform that partners with the world's largest brands to deliver dynamic, personalized shopping experiences. Our technology powers the customer journeys behind enterprises like GNC, Backcountry, and Glossier and allows them to deliver best-in-class shopper engagement and conversion while enabling them to stay on the cutting edge of what's possible in agentic commerce.

We're backed by VMG, Bain Capital Ventures, Greylock, and QED, and have been named The Information's #1 commerce startup. We're a 60+ person team based in SF, NYC, and Bangalore — come build the infrastructure of the future of commerce with us!

About the Role:

We’re looking for exceptional engineers who can operate across teams, stacks, and problem spaces, and turn ambitious ideas into production-grade systems.

This is not a narrowly scoped, team-specific role. You’ll work wherever impact is highest across our platform: core infrastructure, customer-facing features, data systems, internal tooling, or new product initiatives.

We’re especially interested in engineers who are AI-native in their workflow. You use modern AI tools to increase velocity, improve quality, and explore solutions faster. You have strong product instincts, operate with high agency, and care deeply about shipping meaningful outcomes.

If yo