Senior Software Engineer, Backend

About the Company

Retell AI is using first principles to reimagine the call center with cutting-edge voice AI. Backed by Y Combinator and Alt Capital, we have scaled to $60M ARR and are building a modern CX platform where entire contact centers are powered by intelligent AI workers.

Responsibilities

• Build foundational architecture for prompt orchestration, testing frameworks, observability dashboards, and telephony integrations
• Design scalable backend systems and DevOps workflows for reliable performance across millions of calls
• Lead complex projects from architecture to production, driving delivery and monitoring
• Collaborate with product and design teams to create intuitive APIs and interfaces
• Support customer onboarding, troubleshoot issues, and turn feedback into product improvements

Requirements

• 2+ years of backend development experience
• Strong foundation in CS fundamentals (CS/CE/EE degree or equivalent)
• Experience with scalable, high-performance backend systems involving concurrency, data, storage, or distributed components
• Ability to thrive in fast-moving, ambiguous startup environments
• Strong communication and collaborative skills

Preferred Qualifications

• Startup experience
• Experience with infrastructure, databases, or large-scale backend systems