To lead the technical direction of public API development, the full-time Senior Back-End Engineer will manage the architecture of provider search, ranking, and copay lookup systems while mentoring engineers and driving execution in a fully remote environment. Key responsibilities Drive technical direction, implementation, and production support for client-facing gRPC APIs and SDKs Make long-term public API design decisions, ensuring versioning, backward compatibility, and reliable integrations Design and evolve ranking logic to balance relevance, network status, and cost in provider search results Required qualifications 8+ years of experience building backend services and distributed systems Deep experience with search systems and architecture at scale Proven track record of shipping public APIs and SDKs with a focus on versioning and compatibility Demonstrated ability to operate as a technical lead and influence engineering practices Experience with GCP data infrastructure at scale, including AlloyDB/Postgres and BigQuery