Full Stack Engineer (AI Systems)

Role Summary

Our client is looking for a Full Stack Engineer – AI Systems to build AI-native product experiences that transform advanced AI capabilities into intuitive, production-ready workflows. This role combines frontend, backend, and AI engineering to develop intelligent features that are reliable, scalable, and user-centric.

Working closely with product, backend, and machine learning teams, this position will focus on designing end-to-end AI workflows, integrating large language models (LLMs), and delivering seamless user experiences across web applications.

Responsibilities

• Build end-to-end product features across frontend, backend, and AI integrations.
• Design and develop AI agent workflows that support planning, tool usage, failure handling, and recovery across multiple steps.
• Integrate LLMs, memory systems, and external tools into scalable, production-grade applications.
• Design responsive AI interactions with streaming capabilities, partial results, and low-latency performance.
• Improve system reliability, observability, and fallback mechanisms for AI-powered features.
• Collaborate closely with product, backend, and machine learning teams to deliver features from concept to production.
• Continuously iterate and improve product functionality based on user feedback, production insights, and real-world usage.

Requirements

• Strong experience in full stack software engineering across frontend and backend development.
• Solid understanding of system design, scalable architecture, and API development.
• Experience building AI-powered applications using Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), or similar technologies.
• Ability to work effectively in fast-paced environments with evolving requirements.
• Strong ownership mindset with experience delivering features from ideation through production deployment.
• Excellent problem-solving skills and the ability to make pragmatic engineering decisions in ambiguous situations.

Preferred Technical Skills

• Experience with some or all of the following technologies is preferred:
• Next.js
• Python
• Node.js
• PyTorch
• OpenAI, Anthropic, or open-source Large Language Models (LLMs)
• SQL and NoSQL databases
• Kubernetes
• Docker

About the Company

Our client is a stealth AI startup backed by one of Southeast Asia's leading technology companies and is currently building its global founding team.

The company is developing an AI-native communication platform designed to simplify everyday tasks by integrating AI directly into conversations. Instead of switching between multiple applications, users can plan, organize, compare, research, and complete tasks within a single intelligent assistant.

Serving a market of billions of users still relying on traditional productivity tools, the platform focuses on delivering reliable AI workflows, persistent context, multi-step reasoning, and seamless task execution. The mission is to create an AI assistant that significantly improves productivity while making everyday work simpler and more intuitive.