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Customer Success Engineer (Contract)
Retell AI
Remote, USA
Full Time, Contract
Entry · 2+ years experience
Remote
USD 6000-7500 monthly / month
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Role Overview
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.
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Full Job Posting
ABOUT RETELL AI
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.
Recent recognition
No. 1 Best Places to Work in the Bay Area, San Francisco Business Times 2026
Top 50 AI Apps, a16z (2025)
#3 Fastest-Growing Software Company, G2 Best Software Awards 2026
Best Agentic AI Software, G2 Best Software Awards 2026
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