AI Engineering
Motley
AI tool choices were guesswork — no monitoring, no evaluation, no shared numbers to compare one model or service against another.
AI Engineering · Evaluation · Tool Selection
I design and ship AI-native products from ambiguous idea to working software. My work spans product strategy, UX/UI, coded prototypes, AI workflows, and production interfaces across SaaS, adtech, dev tooling, and agentic systems. I'm strongest where design, engineering, and product judgment overlap: turning unclear technical possibilities into polished, usable products.
Make it clear, make it work, make it matter.
Recent work includes AI campaign tools, agent dashboards, MCP interfaces, LLM evaluation systems, and production workflow automation.
Jun 4 — Jun 11
Joaquin Perez — Observed Patterns — Real-Time
Selected Work
From side projects to shipped products — what I built, how I built it, and what I learned.
AI Engineering
AI tool choices were guesswork — no monitoring, no evaluation, no shared numbers to compare one model or service against another.
AI Engineering · Evaluation · Tool Selection
Agentic Web
Agents act everywhere, but nothing recognizes them across sessions — the gap between what an agent did and who it became was unbuilt.
Designed & Developed · Side Project
AI Tooling
The Claude Agent SDK is powerful but forces constant context-switching between code, CLI, and docs.
Designed & Developed · Side Project
AI Tooling
Building MCP-UI resources meant context-switching between server logic and hand-written HTML, CSS, and JavaScript.
Designed & Developed · Side Project
Fintech
How do you design a payments integration for an API you don't yet understand?
UX DESIGN · UI DESIGN · ENGINEERING
Web App
How do you turn a backend AI intelligence engine into a demo compelling enough to drive signups for the full platform?
UX DESIGN · UI DESIGN · ENGINEERING
SaaS Product
Users couldn't deploy tracking pixels without calling support — the feature generated more tickets than anything else on the platform.
UX DESIGN · UI DESIGN · UX RESEARCH
Mobile iOS
Parents searching for a new school need a safety-first tool to feel in control of a high-stakes decision.
UX DESIGN · UI DESIGN · UX RESEARCH
Working Principles
Patterns from building — the trade-offs, the unknowns, and what changed along the way.
I cut breadth for speed. A narrow first version that works earns the credibility to widen scope later — and by then you know which extensions matter. The instinct to support everything is strong. I ship one thing well and let traction decide what comes next.
“Do one thing quickly. Expand with trust.”
When a product generates confusion, the answer is almost never more features. Fewer options, clearer labels, one obvious path forward. The best fix I have shipped was subtraction — removing steps, not adding them. Clarity compounds. Complexity just accumulates.
“The best fix was subtraction.”
Some of my strongest work started with no playbook — building on standards still being written, in territory with no tutorials and no one to ask. I read the spec, built the first implementation, and iterated until it worked. Unfinished ground is the best place to build if you are willing to write the reference yourself.
“Build on unfinished ground. Write the reference yourself.”
I design the full journey, not individual screens. That means understanding how components interact, where delays compound, and how small decisions ripple through the full experience. The system is always the real design surface.
“The whole chain, not individual screens.”
AI changed what one person can attempt. I take on work that used to require a team — and that shifted something deeper than my skill set. It shifted my ambition level. The feedback loop collapsed: building and thinking became the same motion. That is the flow state I am optimizing for now.
“Building and thinking — the same motion.”
Toolkit
The tools I reach for — and the territory I pay attention to.
Claude Code, Model Context Protocol (MCP), MCP-UI, Vercel AI SDK, Ollama, LangChain, Honcho, Local LLMs, A2A Protocol
TypeScript, JavaScript, Python, React, Next.js, Node.js, Vue, HTML, CSS, Tailwind CSS, Radix UI, Framer Motion, Storybook, Playwright
Docker, AWS, Cloudflare (Workers, KV, DNS), Vercel, PostgreSQL (Neon), Redis, Supabase, Drizzle ORM, Inngest, REST APIs, Git
Figma, Framer, Webflow, Design Systems, Interaction Design, After Effects
Decentralized Identity, Digital Sovereignty, Context Engineering, Composable UI, Open Source Tools, Media Theory