
Job description
Join our team at Toss Commerce to build a real-time voice conversation system that enables AI to interact with customers. Design and implement the core functions of the voice-based AI agent, including prompt, agent composition, context engineering, evaluation, tool calling, and guardrail.
Design and implement the core functions of the voice-based AI agent, including prompt, agent composition, context engineering, evaluation, tool calling, and guardrail.
Ideal candidate has experience with AI/ML components, data-driven evaluation, and continuous improvement. Must design and implement a solution that considers both technical sophistication and business applicability.
Company

Finance • Tech, Software & IT Services
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Toss is Korea’s leading financial SuperApp, serving over 30 million users with a comprehensive and integrated platform for managing their financial lives and beyond. Originally launched as a money transfer service in 2015, Toss has expanded to offer over 100 services encompassing financial management, shopping, and everyday lifestyle needs. Driven by a commitment to simplicity and user experience, Toss provides an intuitive and accessible solution for a wide range of daily tasks. Recognized as a global fintech innovator – consistently ranked among CNBC’s Top 250 Fintech Companies – Toss offers a dynamic and impactful environment for professionals seeking to contribute to the future of financial technology and user-centric design.