Senior Backend & Full-Stack Engineer: AI Infra + Equity (SF)

Photon is seeking a Senior Backend / Full Stack Engineer to own complex engineering problems from architecture to production. You will work on distributed messaging infrastructure, developer-facing APIs, internal platforms, and tooling that makes building on Photon effortless. This role emphasizes solving hard problems, owning outcomes, and shaping the architecture and engineering culture of Photon. Expect significant autonomy and direct influence on tech decisions.