About Hupo We are an AI-native start-up building sales enablement products in the banking, financial services, and insurance industry; already trusted by dozens of enterprise customers (including Fortune 500 companies). Role at a Glance Title: Senior Full Stack Engineer - AI Products Team: Engineering Employment Type: Full-time Location Singapore: Hybrid Southeast Asia (SEA): Remote (Must align with SEA timezones) What You'll Do Build and ship AI-driven products across the sales lifecycle (lead qualification, meeting prep, live assistance, roleplay, outbound, follow-ups) Develop LLM orchestration and RAG pipelines using CRM data, product knowledge, and customer context Work on real-time and voice features, including low-latency pipelines, transcription, and in-call AI support Design and implement agentic workflows (multi-step AI tasks, automation, outbound sequences) Integrate with CRM systems, communication platforms, and enterprise data sources Contribute to scalable, multi-tenant architecture for enterprise clients Take features from concept to production, including design, implementation, and iteration What We're Looking For Must-Haves 4+ years of experience in backend or full-stack engineering Strong proficiency in Node.js and TypeScript Experience building and shipping AI-powered features in production Experience in voice or real-time systems (STT, TTS, streaming) Solid understanding of system design (APIs, async workflows, real-time systems, data modeling) Comfortable working in fast-moving, ambiguous environments Nice-to-Haves Experience with LLM workflows, RAG pipelines, or agentic systems Experience building multi-tenant SaaS platforms Familiarity with cloud infrastructure (e.g. AWS)