Senior Software Engineer I, L3 Messaging Team (Remote) We're recruiting a Senior Software Engineer I to own the technical direction of a mission-critical messaging platform serving hundreds of healthcare organizations across the United States. THE ROLE Our client is a fast-growing, mission-driven organization transforming patient engagement at scale. They've built the leading platform powering communications for underserved populations, with proven impact reaching millions. Now they're looking for a seasoned backend engineer to lead their Messaging Team technical direction and mentor the next generation of engineering talent. You'll own complex features end-to-end, drive architectural decisions that shape how millions of patient communications are delivered, and share team lead responsibilities with your peers. This is a highly visible, technically autonomous role with direct impact on health equity outcomes. WHO WE'RE LOOKING FOR 5+ years hands-on backend engineering with Ruby on Rail...