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Senior Software Engineer - Backend

Retell AI· Engineering
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San Carlos, CA$215k - $290k + equityfull-timePosted 11mo ago

About the role

Builds and designs core backend systems powering AI-driven conversations, focusing on real-time audio, telephony, 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 on scalable, high-performance backend systems involving concurrency, data, storage, or distributed components
  • Ability to take ownership and build core systems that are fast, reliable, and correct
  • Thrives in fast-moving, ambiguous environments with quick learning and problem-solving skills
  • Strong communication and collaboration skills
  • Startup experience or experience with infrastructure, databases, or large-scale backend systems (preferred)

Skills

Required:Backend developmentCS fundamentals
Nice to have:DevOps workflows

Benefits

  • 100% coverage for medical, dental, and vision insurance
  • $70/day DoorDash credit for unlimited meals and snacks
  • $200/month wellness reimbursement
  • $300/month commuter reimbursement
  • $75/month phone bill reimbursement
  • $50/month internet reimbursement
Last updated Nov 22, 2025. 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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