Retell is building the new standard for automating call center communications, including sales, support, customer engagement, and retention calls.
Backed by Altman Capital, Y Combinator, and top investors, we've raised a $4.7M seed round and hit $14M ARR in 15 months.
Check us out on the Top Lean AI Native Companies Leaderboard at leanaileaderboard.com.
As a Founding Senior Full-Stack Engineer, you’ll shape the heart of Retell AI’s voice automation platform, building scalable systems and intuitive interfaces that power millions of AI-driven conversations. You’ll work across the stack—leveraging React, TypeScript, and Node.js—to deliver fast, beautiful, and reliable solutions. Collaborating closely with the founding team, you’ll bridge backend architecture (like prompt orchestration and telephony integrations) with frontend experiences (such as dashboards and analytics tools), ensuring seamless customer onboarding and impactful user experiences. This high-impact role offers rapid feedback loops, customer collaboration, and the opportunity to define a category-leading product that transforms global communication.
Retell AI - API That Turns Your LLM Into A Human-Like Voice Agent
Retell AI Basics: Everything You Need to Start Building Voice Agents
Join Retell AI to shape the future of voice automation, building scalable, impactful full-stack systems that redefine AI-driven communication.
fulltimeSan Carlos, CA, USFull cycle$185K - $215K0.05% - 0.15%3+ years
fulltimeSan Carlos$20 - $30Any (new grads ok)
contractRemote$36K - $48KAny (new grads ok)
fulltimeSan Carlos, CA, US$150K - $220K0.04% - 0.10%3+ years
fulltimeSan Carlos, CA, USFull stack$215K - $290K0.40% - 0.60%1+ years
fulltimeSan CarlosFull stack$215K - $290K0.30% - 0.60%3+ years
fulltimeSan Carlos$220K0.50%3+ years
fulltimeSan Francisco Bay AreaFull stack$215K - $290K0.30% - 0.60%6+ years
fulltimeSan Carlos$220K0.50%3+ years
fulltimeSan Carlos, CA, US$215K - $290K0.20% - 0.60%1+ years
internSan Carlos, CA, US / Remote (US)$20K - $25KAny
fulltimeSan Carlos, CA, USFrontend$215K - $290K0.40% - 0.60%1+ years