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 under real-world conditions
• ▹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
• ▹Continuously iterate based on real usage and failure modes

Requirements

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

Soft skills

About the company

ActAI builds proactive, AI-native applications for people who aren't used to complex prompting, aiming to bring intelligence into conversations, errands, and workflows with minimal prompting, focused on reliable long-running task completion and persistent context.