Conversational AI Engineer (relocate to Tokyo, Japan)

Conversational AI Engineer (relocate to Tokyo, Japan)Join a small but ambitious team developing a new AI-driven consumer product that’s already live in 5 countries. You'll focus on crafting seamless and helpful conversational experiences, working at the cutting edge of LLMs, prompt design, and real-world dialogue systems.This is an in-person role based in Tokyo. Remote work isn’t possible due to the close collaboration required across teams.What You’ll Be Doing:• Designing and implementing smart, user-friendly conversation flows that feel natural and contextual.• Building reliable systems for understanding intent, managing dialogue state, and handling edge cases.• Experimenting with different prompting strategies to guide model behavior effectively.• Connecting conversational interfaces with backend services and data sources.• Turning product ideas into fully working features with production-level Python code.• Maintaining reusable templates, prompts, and documentation for future scaling.• Sharing your ideas, demos, and learnings with a tight-knit team of engineers and product thinkers.What You’ll Need to Succeed:• Strong Python skills and professional software engineering experience.• Proven track record building applications with modern LLMs (chatbots, assistants, or agents).• Deep familiarity with prompt tuning, context handling, and dialog orchestration.• Experience integrating with APIs, deploying to production, and writing maintainable code.• Knowledge of conversational frameworks and retrieval techniques (e.g. RAG).• Comfortable working autonomously and collaboratively in a fast-paced setting.• Willing to relocate to Tokyo and work onsite (visa sponsorship provided).Bonus If You Bring:• Experience with LangChain, vector search, or orchestration libraries.• Familiarity with vector DBs like FAISS or Pinecone.• Knowledge of cloud platforms (AWS, GCP, or similar).• Exposure to multimodal systems or user-facing AI products.• Awareness of usability principles for conversational UX.What's in It for You:• Work on a high-impact product with international reach from day one.• Build practical AI features used by real people.• Join a deeply collaborative team with big ambitions and lots of autonomy.• Visa sponsorship, relocation assistance, and a competitive package.• Be part of a long-term, global effort to make everyday tasks more intuitive through AI.Next Steps:If you’re excited about building conversational tools that people genuinely want to use, we’d love to hear from you. Send over your CV or drop us a message to learn more in confidence.