Deploy AI voice agents in minutes with 95.7% workflow accuracy, benchmarked ahead of 6 platforms. Pilot on real calls before you sign anything. Backed by Y Combinator.
About the role
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. Found on 1752vc Careers, the job board for startup and VC roles.
What they're looking for
- 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
- 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. We expect you to use AI to move faster, but you must understand and be able to explain, debug, and fix the code yourself
- 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, and work directly with customers to scope and build solutions with them
More about this role
Retell AI is using first-principles thinking to reimagine the call center with cutting-edge voice AI. Thousands of companies now use Retell's AI voice agents to handle sales, support, and logistics calls that once required large teams of human agents. Backed by Y Combinator, Alt Capital, and other leading investors, we've scaled to $80M in ARR with a team of 50, up from $5M at the start of 2025, and are now valued at over $1.5B.
Our vision for 2026 is to build a modern CX platform where entire contact centers are powered by AI. Instead of basic automation that needs constant human tuning, we're creating intelligent AI “workers” that act as frontline agents, QA analysts, and managers, continuously executing, monitoring, and improving every customer interaction.
We're growing fast and looking for ambitious builders who want to tackle hard technical problems, move quickly, and have a real impact on one of the fastest-growing voice AI companies in the world.
Let's build the future together.
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