--- title: "Julian Tellez (@julian-tellez) | Hashnode" description: "Senior engineer building with AI agents. Ex Sky, ITV, DAZN, Peacock. Read the latest articles by Julian Tellez on Hashnode." url: "https://hashnode.com/@julian-tellez" --- @julian-tellez # Julian Tellez @julian-tellez · London, UK · Joined July 2026 Senior engineer building with AI agents. Ex Sky, ITV, DAZN, Peacock. [Website](https://juliantellez.com/) ### [What Is Software Design? Why AI Agent Factories Skip It](https://juliantellez.hashnode.dev/what-is-software-design-why-ai-agent-factories-skip-it?utm_source=hashnode&utm_medium=feed) A factory of agents can write the code faster than you can read it. It still cannot decide what to build, and that decision is the whole job. 20 min read · [juliantellez.hashnode.dev](https://juliantellez.hashnode.dev/what-is-software-design-why-ai-agent-factories-skip-it?utm_source=hashnode&utm_medium=feed) [1](https://hashnode.com/posts/what-is-software-design-why-ai-agent-factories-skip-it/6aed978498c1016d30f26f5d) [Nov 6](https://hashnode.com/posts/what-is-software-design-why-ai-agent-factories-skip-it/6aed978498c1016d30f26f5d) ### [What a Software Factory Actually Is, from Hitachi in 1969 to AI Agents](https://juliantellez.hashnode.dev/what-a-software-factory-actually-is-from-hitachi-in-1969-to-ai-agents?utm_source=hashnode&utm_medium=feed) From Hitachi in 1969 to Kessel Run and AI agent pipelines: what a software factory is, when it works, and when it fails. 16 min read · [juliantellez.hashnode.dev](https://juliantellez.hashnode.dev/what-a-software-factory-actually-is-from-hitachi-in-1969-to-ai-agents?utm_source=hashnode&utm_medium=feed) [Oct 28](https://hashnode.com/posts/what-a-software-factory-actually-is-from-hitachi-in-1969-to-ai-agents/6ae207e810826f842c1fed81) ### [I Got a $95 Million AWS Bill Alert at 3am. Here Is How I Triaged It](https://juliantellez.hashnode.dev/i-got-a-95-million-aws-bill-alert-at-3am-here-is-how-i-triaged-it?utm_source=hashnode&utm_medium=feed) AWS emailed me a $95 million bill alert at 3am from costalerts.amazonaws.com. How I triaged it, and what the billing bug taught me. 19 min read · [juliantellez.hashnode.dev](https://juliantellez.hashnode.dev/i-got-a-95-million-aws-bill-alert-at-3am-here-is-how-i-triaged-it?utm_source=hashnode&utm_medium=feed) [Oct 23](https://hashnode.com/posts/i-got-a-95-million-aws-bill-alert-at-3am-here-is-how-i-triaged-it/6adbddb7e6875714bcd94508) ### [Typing While the Agent Thinks](https://juliantellez.hashnode.dev/typing-while-the-agent-thinks?utm_source=hashnode&utm_medium=feed) Coding agents leave dead time while they think. I built wordwright, a terminal typing trainer that teaches grammar in the gap. 11 min read · [juliantellez.hashnode.dev](https://juliantellez.hashnode.dev/typing-while-the-agent-thinks?utm_source=hashnode&utm_medium=feed) [Oct 23](https://hashnode.com/posts/typing-while-the-agent-thinks/6adbdd80f8fa25ae89008b64) ### [Talking to Claude Code through an Alexa](https://juliantellez.hashnode.dev/talking-to-claude-code-through-an-alexa?utm_source=hashnode&utm_medium=feed) How I wired an Amazon Echo to drive Claude Code on my Mac, worked around Alexa's 8-second timeout, and what a real product would need. 8 min read · [juliantellez.hashnode.dev](https://juliantellez.hashnode.dev/talking-to-claude-code-through-an-alexa?utm_source=hashnode&utm_medium=feed) [Oct 23](https://hashnode.com/posts/talking-to-claude-code-through-an-alexa/6adbdd433e155b01da9e94d8)