Sr. Software Engineer - Platform Permissions

Summary

Senior Software Engineer responsible for designing, building, and operating AppFolio's authorization platform that manages access control across all products. Will optimize permission-check performance at scale, build libraries and interfaces for other engineering teams to integrate access control, lead migrations of legacy permissions logic, and mentor engineers while driving quality through testing, feature flags, and observability. Requires 7+ years of production systems experience, fluency with AI coding agents, and depth in Ruby on Rails, Go, or React with TypeScript.