Principal Software Engineer

THE JOB

You'll work across a mature C/C++ codebase spanning three decades — from pre-standard patterns in our core authorization gateway to C++17 in our Bazel monorepo. The immediate work is maintenance and strategic modernization of these systems, but this role is explicitly designed to grow: from legacy renovation into systems design, gRPC service architecture, and new technology adoption including Rust. If you're energized by the challenge of understanding why a system was built the way it was before deciding what it should become, this is the role.

This is not a maintenance job with a maintenance ceiling. You'll work on systems that power how fans pay for live events worldwide — at a scale where a misconfiguration can cause thousands of payment failures during a major onsale. The intellectual challenge is real: strategic modernization of systems spanning three decades of C++, with a clear trajectory into new technology.

There is tremendous green-...