Senior Technical Account Manager | Seoul at Castaigroupinc

Why Cast AI? Cast AI is an automation platform that operates cloud-native and AI infrastructure at scale. By embedding autonomous decision-making directly into Kubernetes and cloud environments, Cast AI continuously optimizes performance, reliability, and efficiency in production. The old way doesn't work. As Kubernetes and AI environments grow, manual decisions don’t. Cast AI replaces tickets, alerts, and manual tuning with continuous automation that adapts infrastructure as conditions change. Efficiency and cost savings follow naturally from that automation. Over 2,100 companies already rely on Cast AI, including Akamai, BMW, Cisco, FICO, HuggingFace, NielsenIQ, Swisscom, and TGS. Global team, diverse perspectives We're headquartered in Miami, but our impact is international. We take a global and intentional approach to diversity. Today, Cast AI operates across 34 countries spanning Europe, North America, Latin America, and APAC, bringing a wide range of perspectives into how we build and lead. Unicorn momentum In January 2026, we achieved unicorn status with a strategic investment from Pacific Alliance Ventures, the corporate venture arm of Shinsegae Group (a $50+ billion Korean conglomerate). Our valuation now exceeds $1 billion, and we're just getting started. Join us as we build the future of autonomous infrastructure. Cast AI Technical Account Management Cast AI is expanding its Customer Success presence in South Korea, one of our key growth markets in APAC, and we're looking for a Senior Technical Account Manager to manage important customers in this region. As a Senior TAM, you will be the technical leader and trusted advisor for your assigned accounts, independently managing complexity across enterprise Kubernetes environments and building the deep, long-term relationships that drive real outcomes. This is a high-impact role at a fast-growing company where your work will be visible from day one. A Glimpse into the Customer Success Team Our customer-obsessed technical account management team is dedicated to delivering world-class assistance to our clients. They are the bridge between our customers and the wider Cast AI organization, representing the customer's voice to Cast AI and the voice of Cast AI to the customer. The team ensures that our customers are successful in their use of our platform. Requirements: • Located in Seoul. • Business-level fluency in English; Korean fluency required for customer-facing work. • Bachelor's or Master's degree in Computer Science, Engineering, or a related field. • 5+ years of hands-on experience working with Kubernetes in production environments, including deep expertise in cluster architecture, workload optimization, and incident resolution. • CKA, CKAD, CKS, or equivalent advanced certifications strongly preferred. • 5+ years of professional experience in cloud computing across one or more major platforms (AWS, Azure, GCP), with demonstrable expertise in cost optimization, infrastructure design, and FinOps principles. • Proven track record of owning enterprise accounts end-to-end — including renewals, expansion, and executive relationship management. • Ability to lead technical discussions at the architect and VP level, as well as translate complex infrastructure concepts for business stakeholders. • Strong executive presence, outstanding written and verbal communication skills, and the ability to operate autonomously in a fast-paced, distributed environment. • Prior experience in a technical pre-sales, solutions architecture, or senior TAM capacity at a cloud-native or SaaS company is a strong plus. Responsibilities: • Technical Leadership - Serve as the primary technical authority for your portfolio, acting as the first point of escalation and an extension of your customers' engineering teams. • Strategic Account Ownership - Build and maintain executive-level relationships; develop multi-year account plans that align Cast AI's roadmap to customer business outcomes. • Customer Onboarding - Lead complex technical onboarding across enterprise-scale Kubernetes environments, coordinating cross-functionally with engineering, product, and support. • Renewals & Expansion - Own the renewal process and proactively identify and execute upsell and cross-sell opportunities in partnership with Account Executives. • FinOps Business Reviews - Lead monthly and quarterly business reviews (remote and in-person), presenting cost savings, automation outcomes, and strategic recommendations backed by data. • Voice of the Customer - Synthesize customer feedback into actionable product insights; act as an internal advocate influencing Cast AI's roadmap. 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. • Extra days off to help maintain a healthy work-life balance. Hiring process • Screening call with Recruiter • Hiring Manager interview • 1-2 additional interviews based on the role • Culture Check interview with an executive *As part of our standard hiring process, we would like to inform you that a background check may be conducted at the final stage of recruitment through our third-party provider, Checkr. *Please note that Cast AI does not provide any form of visa sponsorship/work permit. #LI-Remote