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Sales Engineer (South Korea)

Castaigroupinc

APAC Remote permanent

Posted: February 6, 2026

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Quick Summary

A Sales Engineer at Cast AI is responsible for designing and implementing automation solutions for customers, ensuring they can cut cloud costs, improve performance, and boost productivity.

Job Description

Why Cast AI?

Cast AI is the leading Application Performance Automation (APA) platform, enabling customers to cut cloud costs, improve performance, and boost productivity – automatically.

Built originally for Kubernetes, Cast AI goes beyond cost and observability by delivering real-time, autonomous optimization across any cloud environment. The platform continuously analyzes workloads, rightsizes resources, and rebalances clusters without manual intervention, ensuring applications run faster, more reliably, and more efficiently.

Headquartered in Miami, Florida, Cast AI has employees in more than 32 countries worldwide and supports some of the world’s most innovative teams running their applications on all major cloud, hybrid, and on-premises environments. Over 2,100 companies already rely on Cast - from BMW and Akamai to Hugging Face and NielsenIQ.

What’s next? Backed by our $108M Series C, we’re doubling down on making APA the new standard for DevOps and MLOps, and everything in between.

About the role

As a Sales Engineer, you will be part of our fast growing Go To Market organization and will play a crucial role in expanding our business and ensuring our clients understand and utilize our technology to its full potential. Your work will have a direct impact on our bottom line and customer satisfaction

Requirements:

• Based in South Korea

• Proven Sales Engineer experience in cloud, AI, or related tech fields.

• Exceptional presentation skills for conveying complex ideas in a compelling manner.

• In-depth knowledge of cloud tech, Kubernetes, and AI/ML concepts.

• Successful track record in building client relationships and exceeding sales goals.

• Excellent communication, negotiation, and problem-solving skills.

• Willingness to travel as needed.

• Fluency in scripting languages (Python, Bash, Powershell, etc.).

Responsibilities:

• Guide sales teams with technical expertise to ensure clients grasp the value of our products.

• Conduct captivating product demonstrations, simplifying complex technology for diverse audiences.

• Customize and deliver persuasive presentations tailored to meet client needs.

• Evaluate client technical needs, proposing solutions and collaborating with technical teams for customization.

• Stay ahead of market trends, competitors, and customer needs to keep our solutions relevant and competitive.

• Represent Cast AI at conferences and trade shows, networking with potential clients and gathering market insights.

What’s in it for you?

• Enjoy a flexible, remote-first global environment.

• Collaborate with a global team of cloud experts and innovators, passionate about pushing the boundaries of Kubernetes technology.

• Equity options.

• Get quick feedback with a fast-paced workflow. Most feature projects are completed in 1 to 4 weeks.

• Spend 10% of your work time on personal projects or self-improvement.

• Learning budget for professional and personal development - including access to international conferences and courses that elevate your skills.

• Team-building budget and company events to connect with your colleagues.

• Equipment budget to ensure you have everything you need.

#LI-Remote

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