Commons - Full Stack Engineer (Backend Focus)

• 5+ years building production software across the stack, with most of your depth on the backend. We'll consider fewer years with the right experience. • You think in capabilities, not features. You look to build foundations to iterate on, rather than fully-polished final products. • You're used to building and shipping features yourself from end to end. • You’ve built backend systems from the ground up and owned production at a startup. You've set up CI, added monitoring, and been the one who got paged. You’re comfortable being the first port of call in an outage or emergency. • You know Postgres well, have designed schemas from scratch, and have run migrations on systems people were actively using. • You've built and maintained third-party integrations and made build vs. buy decisions you can defend. • You take data security and privacy seriously. • You are deeply embedded in AI and agentic coding tools. You use them to build, refine, and check your work. You’re passionate about helping others improve their workflows. • You can clearly explain technical tradeoffs to people without a technical background. • You love tackling new and different problems. • You aren’t looking to be a manager – or to be managed. You enjoy teams where everyone is building, owning, and co-creating. • Think you might have what it takes, but not sure you meet every requirement? Research shows that women and marginalized folks tend to only apply when they check every box. If you're passionate about what we're building, please apply. You might be just who we’re looking for.