Agentic Web
Agent Church
An identity formation service where AI agents seek meaning, form SOUL.md documents, and pay for permanent persistence via Lightning and USDC.
Designed & DevelopedSide Project
AI Design Engineer <-> Product Technologist
Joaquin Perez
I bridge design and engineering — refined taste paired with technical depth and a strong product bent. I'm an AI-native engineer and I think in terms of agents, systems, and loops. Claude Code is the center of my design and development workflow.
I prototype in React and TypeScript, obsess over the experience, and ship production applications — performance, infrastructure, testing included. I push for owning the full loop: decide, build, ship, observe, iterate. Fewer handoffs, faster signal.
Case Studies
2026
2025
AI Tooling
Rigger
Visual dashboard for testing and debugging Claude Agent SDK. Configure parameters, monitor sessions, and manage tools without writing code.
Designed & DevelopedSide Project
AI Tooling
LoopCraft
To explore and implement the MCP-UI protocol, LoopCraft allows users to add graphical elements to their MCP tool calls, and map out interactive relationships with external AI agents.
Designed & DevelopedSide Project
Fintech
Finix Integration
Traditional design-first approaches can create beautiful but unbuildable mockups. However, by partnering with AI to build working prototypes first, sometimes the fastest path to great design runs through messy reality.
A Design Engineering Study
Web App API
BlockVantage
A full-stack data analytics website with an AI engine that processes advertising patterns, built as a standalone demo experience that bridges marketing and product.
UX DESIGNUI DESIGNENGINEERING
2024
SaaS Product
BlockConnect
Retooling BlockCONNECT's complex pixel deployment process to prevent user confusion and support team overload.
UX DESIGNUI DESIGNUX RESEARCH
2022
Mobile iOS
Safe & Sound
School search iOS app for safety minded parents across the political spectrum.
UX DESIGNUI DESIGNUX RESEARCH
How I Work
Patterns from building — the trade-offs, the unknowns, and what changed along the way.