[Hiring] Customer Success Engineer @Retell AI

Role Description

We're hiring a Mandarin-Speaking Customer Success Engineer on a long-term 1099 contract to help enterprise customers successfully deploy and scale AI voice agents in production. You'll work directly with customers to build AI voice agents, design integrations, troubleshoot deployments, and solve technical problems. The role sits at the intersection of software engineering, customer success, and AI deployment. You'll work closely with Engineering, Product, and Customer Success while partnering directly with customer technical teams.

Key Responsibilities

• Enterprise Customer Deployments
  • Support technical onboarding and deployment for enterprise customers.
  • Help customers launch and scale AI voice agents.
  • Build trusted relationships with customer engineering teams.
• Technical Consulting
  • Build AI voice agents alongside customers.
  • Design conversation flows and deployment strategies.
  • Debug APIs, webhooks, SIP, telephony, authentication, integrations, and latency issues.
  • Troubleshoot production deployments and technical issues.
  • Work directly in customer codebases when needed.
• Partner with Product & Engineering
  • Identify product gaps through customer feedback.
  • Translate customer needs into actionable product improvements.
  • Work closely with Product and Engineering teams.
• Customer Growth
  • Help customers launch new AI use cases.
  • Identify opportunities to expand product adoption.
  • Become a trusted technical partner to enterprise customers.

Qualifications

• Must be able to read, write, and speak in Mandarin and English.
• Bachelor's degree in Computer Science, Computer Engineering, Electrical Engineering, or a related technical field.
• 2-8 years of professional software engineering experience, with a strong backend focus (e.g., building and maintaining services, APIs, and data pipelines in production).
• Strong backend fundamentals: you can write clean, working code on your own (Python, Node.js, or similar), design and integrate REST/webhook APIs, work with databases, and reason about system design, authentication, and error handling.
• Able to pass a hands-on backend technical assessment (live coding or take-home) without relying on AI tools.
• Proven ability to debug complex issues across systems by reading logs, tracing requests, and isolating root causes in customer integrations.
• Excellent communication skills: you can explain technical concepts clearly to both engineers and non-technical stakeholders.
• Must be available to work some overlapping hours with our Pacific Time-based team and customers.

Requirements

• Experience with AI, LLMs, or Voice AI.
• Startup experience.
• Enterprise customer experience.
• Willingness to travel occasionally for customer launches or onsite work.

Benefits

• Employment Type: Full-Time 1099 Contractor
• Location: Remote
• Compensation: $6000–$7500 USD/Month, based on experience
• Hours: Must be open to working some overlapping hours with our Pacific Time team and customers.