Member of Technical Staff, Platform Engineer

Arca is seeking a Member of Technical Staff, Platform Engineer to own the core infrastructure, backend systems, and developer experience that enable a small engineering team to ship AI agents into a regulated wealth management domain. The role focuses on building reliable, cost-effective, and high-performance systems, including safe execution sandboxes for agents, internal tooling for efficiency, and scalable data pipelines to support rapid growth through acquisitions. This position requires a systems thinker who values ownership, speed, and reliability in a collaborative, in-office environment.