April 2026

La inteligencia artificial lleva ya años prometiendo cambiar el trabajo. Pero esta semana, por fin, ha empezado a hacerlo de verdad. Y no en forma de titulares grandilocuentes ni de demostraciones de laboratorio, sino en algo bastante más tangible: despidos. Meta y Microsoft han anunciado importantes recortes de plantilla mientras redoblan sus inversiones en la tecnología, con Meta previendo eliminar alrededor del 10% de su plantilla mientras incrementa agresivamente su gasto en la categoría. Durante meses, el discurso […]

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Why FDE is the Fastest-Growing Job in Enterprise Software Forward Deployed Engineers are growing 1,000%+ year-over-year. Here’s what they actually do, why Customer Success can’t replace them, and what the hiring explosion tells you about where enterprise AI Last week I wrote about Palantir’s Forward Deployed Engineering model — why it worked, what made it structurally different, and why so many companies trying to imitate it are doing it wrong. The engagement from the readers made me understand I should […]

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1.0 Introduction The model is not the hard part. Every frontier model has a story about their latest capabilities. Claude Opus 4.7, GPT-5.5, and Gemini 3.1 Pro are genuinely remarkable reasoning engines; each pushing further on context, multimodal perception, and agentic tool use. Behind each of these extraordinary reasoning engines, however, is a non-model infrastructure layer working silently to make the model useful in practice. Everyone building AI agents have access to the same frontier models through the same […]

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Building a production-grade voice AI agent is one of the hardest engineering challenges in applied machine learning today. It is not just about transcription accuracy. You need a system that can hold context across a five-minute conversation, invoke external APIs mid-call without an awkward pause, gracefully recover when a caller corrects themselves, and do all of this reliably when the audio is degraded by background noise, a heavy accent, or a dropped word. Most current systems handle one […]

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A 3-level testing pyramid for SaaS teams shipping AI features that actually need to work. We broke our first AI agent backend in production on a Tuesday. Not because the model gave a wrong answer. Because the system around it wasn’t testable. A prompt change we considered minor cascaded through three tool calls, bypassed a guardrail, and returned corrupted output to a live user. No test caught it. No trace explained it. That’s the moment we stopped treating our agent […]

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A Z-score is not just a formula you plug numbers into. It’s a question your data is asking and most people never hear it. Photo by Jean-Rene Chazottes on Pexels Let me start with a scenario. You’re looking at two students. One scored 78 on a biology exam. The other scored 62 on a physics exam. Someone asks you: “Who did better?” Your first instinct is probably: well, 78 is higher than 62, so the biology student did better. But what if […]

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