AI Architect – Agentic Workflows & LLM Infrastructure

About the role

We are seeking a hands‑on AI Architect to join as our second engineering hire, building an agentic system that triages accounting documents from multiple channels. You will work closely with the founding team and the first engineer to shape the AI architecture and own critical components of the production pipeline.

Key responsibilities

• Design and develop a long‑running agentic pipeline, including orchestration, state management, model routing, retries and fallbacks.
• Build an evaluation layer for model comparison and quality monitoring without losing visibility.
• Deploy, test and optimise both managed and open‑weight models in production environments.
• Implement deterministic guards and validated boundaries around probabilistic AI components.
• Make the pipeline observable across quality, hallucinations, latency, cost and failures.
• Develop RAG and retrieval workflows using vector databases and customer‑specific knowledge.
• Extend human‑in‑the‑loop review flows and ensure safe feedback loops.

Required profile

• Production experience automating business workflows with AI and measurable impact.
• Deep experience with agent frameworks such as LangGraph, Google ADK or Claude Agent SDK.
• Experience building stateful, long‑running agents with tool use, loops and human intervention.
• Background in deploying models via Bedrock, Azure AI Foundry, Vertex AI or similar platforms.

Required skills

• LangGraph, Google ADK, Claude Agent SDK
• Bedrock, Azure AI Foundry, Vertex AI
• Llama (open‑weight models), vLLM, OpenRouter, Hugging Face
• Langfuse, Arize Phoenix, pgvector
• RAG, vector databases, AI observability, deterministic guardrails
• Multimodal document processing, OCR, intelligent classification

What we offer

• Opportunity to build a product from the ground up as the second engineering hire.
• Significant ownership of key technical areas and influence over engineering decisions.
• Collaboration with experienced founders and the first engineer.
• Fast‑moving environment with minimal bureaucracy.