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Senior Software Engineer, Backend

Retell AI· Engineering
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San Francisco Bay Area$200k - $300kFull-timePosted 11mo ago

About the role

Senior Backend Engineer responsible for building foundational architecture and scalable backend systems for Retell AI's voice-powered platform, including real-time audio, telephony integrations, and developer tooling.

Responsibilities

  • Build foundational architecture for Retell's platform, such as 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 for quick customer onboarding.
  • Support customer onboarding, troubleshoot issues, and turn feedback into product improvements.

Qualifications

  • 2+ years of backend development experience
  • strong foundation in CS fundamentals (CS/CE/EE degree or equivalent)
  • experience with scalable, high-performance backend systems (concurrency, data, storage, or distributed components)
  • ownership mindset and ability to build core systems that are fast, reliable, and correct
  • ability to work in fast-moving, ambiguous environments
  • clear communication and cross-team collaboration
  • startup experience or high-velocity environment; bonus points for experience with infrastructure, databases, or large-scale backend systems

Skills

Required:Backend developmentConcurrency and distributed systems

Benefits

  • 100% coverage for medical, dental, and vision insurance
  • $70/day DoorDash credit
  • $200/month wellness reimbursement
  • $300/month commuter reimbursement
  • $75/month phone bill reimbursement
  • $50/month internet reimbursement
Last updated Aug 5, 2026. Interested? Apply on the company site.
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About Retell AI

Supercharge your Call Operations with Voice AI Agents

Build, test, deploy, and monitor production-ready AI voice agents at scale with ease, boosting efficiency and performance across your operations.

AI Call CenterAI Voice Agent PlatformCustomer SupportMultilingual SupportPhone Call AutomationScalable AI SolutionsSpeech Recognitionai-agents-and-applications
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