Retell AI
Customer Success Engineer (Contract)
About this role
Retell AI seeks a Mandarin-speaking Customer Success Engineer on a contract basis to support enterprise customers deploying and scaling AI voice agents in production. You'll combine technical problem-solving with customer relationship building, helping teams integrate voice AI into their systems while collaborating with product and engineering teams.
What you'll do
- Support technical onboarding and deployment for enterprise customers using AI voice agents
- Build and design AI voice agents alongside customers, including conversation flows and deployment strategies
- Debug and troubleshoot technical issues across APIs, webhooks, SIP, telephony, authentication, and integrations
- Identify product gaps through customer feedback and translate needs into actionable improvements
- Help customers launch new AI use cases and expand product adoption
- Partner with engineering teams to work directly in customer codebases when needed
What they're looking for
- AI voice agent development and deployment
- Technical troubleshooting (APIs, webhooks, SIP, telephony)
- Integration design and debugging
- Conversation flow design
- Customer relationship management
- Fluent Mandarin and English (speaking, reading, writing)
- Full-stack software development
- Enterprise system architecture understanding
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Retell AI
Retell AI builds AI products and is developing design systems to enhance the connection between design and code across its platform. The company is hiring Design Engineers to prototype in code, maintain design systems, and ensure design consistency.
- Website
- retell.ai
Likely interview questions
- Tell us about a time you debugged a complex integration issue in production—what was your approach?
- How would you handle a customer who is struggling with SIP configuration and telephony integration?