Senior Software Engineer, AI Agents, Seoul (8+ yrs, Founders Welcome) at a Sequoia-Backed $15B AI Company

About The Job The client is hiring for this role, and Harper, an AI career agent, is on your side of the table. Skip the application form: just talk to Harper, and in a few minutes it learns your background, then puts the strongest profiles directly in front of the client's decision-makers. 👉 Start with Harper Job Title Senior Software Engineer, AI Agents (L5), Korea Founding Team Level 8–10+ years of hands-on engineering (L5 band). Founders and whole founding teams are welcome to apply together. Salary Top of the Korean market: a salary above what leading Korean tech companies pay for the same level, plus a significant equity grant. Location Seoul, South Korea (On-site). Day-to-day work in Korean; English only with management. Company Description A platform that lets every company build better, more human customer experiences with AI agents, serving industry leaders across telecom and media, commerce, financial services, and healthcare. Based in San Francisco with offices across North America, Europe, and Asia, and now opening in Korea. Its co-founder currently serves as Board Chair of OpenAI and was previously co-CEO of Salesforce and CTO of Facebook. The most recent round raised close to $1B at a valuation above $15B. What You'll Do Build and ship production-grade AI agents for Korea's largest enterprises: mission-critical systems, not prototypes Own the Agent Development Life Cycle from pilot to deployment to continuous iteration Work directly with enterprise leaders to turn their hardest problems into agents that run at scale Shape the core platform: surface unmet needs, prototype tools, collaborate with research, product, and platform Who You Are 8–10+ years hands-on; you still ship code every week You come from a zero-to-one environment (an early-stage startup, your own company, or a small AI team), not a big-tech seat far from the product Experience building and scaling end-to-end production systems, ideally LLM or agent systems in production High agency; comfortable working directly with customers Fluent Korean for daily work and working English for management Why Join Found the Korea engineering team of a $15B company with a product already live at global enterprises Top-of-market pay for Korea: a salary above leading Korean tech companies for the same level, plus a significant equity grant Founders and founding teams welcome: co-founders can be introduced and evaluated together Interview loop: coding, then a virtual on-site (debugging + agent-building take-home, mostly in Korean), then a conversation with the Head of Engineering for APAC Unlimited PTO, medical/dental/vision for you and your family, parental leave, lunch and snacks, and a discretionary benefit stipend How This Works Harper is an AI career agent on your side, free for candidates and paid for by companies. Talk to Harper for 5 minutes. No resume form. If you're a fit, your profile goes straight to the client's hiring team, and only after you approve. Not a fit? Harper keeps sending you roles you wouldn't find on your own. Why the company is unnamed: our clients ask us not to name them publicly. You'll get the name as soon as you connect. Show more Show less