Fullstack Senior Developer for SaaS Platform

We are a small team building a SaaS platform to help customers find candidates quickly using smart filters and manage a large candidate database of hundreds of millions of records. We need one senior developer who can take ownership of multiple projects and help keep the platform running smoothly. Experience with Ruby on Rails, Typescript, or Golang is important, and knowledge of DevOps is a plus. The ideal freelancer should be comfortable working independently, solving complex problems, and contributing across the full stack.