AgentMail is building the identity and communication infrastructure for AI agents, starting with email. We are looking for a Senior Engineer with backend and infra focus to architect systems for agents as the end users. Responsibilities: • Design APIs that are intuitive for both humans and LLMs • Architect high-throughput, low-latency systems • Write and review clean, idiomatic code • Maintain comprehensive documentation • Lead and manage a team of 4-6 engineers Qualifications: • Has 3+ years of work experience as an engineer working on infrastructure at a tech company • Has architected software used in production by millions of users Compensation: • $250k - $400k base salary • 1.0% - 2.0% equity • Breakfast, lunch, and dinner (Doordash) • Medical, dental, and vision insurance • Equinox membership