Full Stack Engineer, AI Systems

Stack

Responsibilities

• ▹Build end-to-end product features across frontend, backend and AI integrations
• ▹Design agent workflows that handle planning, tool use, failure and recovery across multiple steps
• ▹Integrate LLMs, memory and external tools into systems that behave reliably in the real world
• ▹Design real-time AI interactions with streaming, partial results and tight latency constraints
• ▹Improve system reliability, observability and fallback mechanisms
• ▹Collaborate closely with ML, backend and product teams to ship features end-to-end

Requirements

• ▹Strong full-stack engineering experience (frontend + backend)
• ▹Solid understanding of system design and API architecture
• ▹Experience with LLMs, RAG systems or AI-powered applications
• ▹Ability to handle ambiguity and make pragmatic engineering decisions
• ▹Strong ownership from idea to production
• ▹Tech stack: Next.js, Python, Node.js, PyTorch, OpenAI/Anthropic and open-source LLMs, SQL & NoSQL, Kubernetes, Docker

Soft skills

About the company

ActAI aims to build proactive, AI-native applications for the 5 billion users who currently rely on non-AI-native basic apps (email, notes, tasks, calendar), with minimal prompting.