Applied AI Engineer (Customer Facing)
About The Position
Retell AI is transforming customer experience with Voice AI for enterprises, including customers like CVS/Aetna, American Airlines, Lenovo, and Grab. We're building the infrastructure that powers millions of AI-powered phone conversations every month—and we're just getting started. We're hiring an Applied AI Engineer to work directly with enterprise customers to design, build, and deploy production AI voice applications. As an Applied AI Engineer, you'll sit at the intersection of AI, software engineering, and customer success. You'll partner closely with customer engineering teams to integrate Retell into their products, solve complex technical challenges, optimize AI workflows, and help customers successfully launch and scale Voice AI in production. This is an ideal role for someone who enjoys building software, solving ambiguous technical problems, and working directly with customers. You'll collaborate daily with Engineering, Product, and Customer Success while helping shape the future of enterprise AI. This is a full-time position based in our Redwood City headquarters.
Requirements
- Bachelor's degree in Computer Science, Computer Engineering, Electrical Engineering, or a related technical field.
- 2+ years of software engineering or customer-facing technical experience building and deploying production applications.
- Strong programming skills in Python, TypeScript, or similar languages.
- Experience working with APIs, SDKs, and distributed systems.
- Excellent debugging and problem-solving skills.
- Strong communication skills and the ability to work directly with technical customers.
- Available to work standard U.S. business hours with overlap with our Pacific Time team and enterprise customers.
Nice To Haves
- Experience building AI or LLM-powered applications.
- Experience with Voice AI, speech technologies, or conversational AI.
- Experience with cloud infrastructure (AWS, GCP, Azure).
- Experience with telephony, SIP, Twilio, or real-time communications.
- Startup experience.
- Customer-facing engineering, solutions engineering, or consulting experience.
- Willingness to travel up to 10% for customer workshops, launches, and onsite engagements.
Responsibilities
- Design, build, and deploy production AI voice applications.
- Partner with customer engineering teams to integrate Retell APIs and SDKs.
- Develop custom workflows, automations, and conversational AI experiences.
- Help customers architect scalable AI systems for production.
- Debug production issues across APIs, webhooks, telephony, SIP, authentication, latency, and infrastructure.
- Investigate AI behavior and improve prompt quality, reliability, and performance.
- Work directly in customer codebases when needed.
- Own technical implementation from proof of concept through production launch.
- Lead technical onboarding for enterprise customers.
- Serve as the primary technical advisor during implementation.
- Guide customers on AI best practices, architecture, and deployment strategies.
- Help customers expand into new AI use cases across their organizations.
- Partner closely with Product and Engineering to improve the platform.
- Turn customer feedback into product improvements.
- Identify recurring customer pain points and propose scalable solutions.
- Help define best practices for deploying enterprise Voice AI.
Benefits
- 100% coverage for medical, dental, and vision insurance
- $70/day DoorDash credit for unlimited breakfast, lunch, dinner, and snacks
- $200/month wellness reimbursement (gym, fitness classes, etc.)
- $300/month commuter reimbursement (gas, Caltrain, etc.)
- $75/month phone bill reimbursement
- $50/month internet reimbursement
- Meaningful Equity
- US Visas: Retell AI is open to sponsoring work authorization for qualified candidates, including H-1B, TN, L-1, E-3, F-1 (OPT/CPT), and O-1 visas.
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What This Job Offers
Job Type
Full-time
Career Level
Mid Level
