Senior Product Designer and Design Engineer.
Luis Manzur Díaz. 10+ years across UX/UI, design systems and full-stack web development. I take products from Figma to production Rails, and I founded and built Eclipse, a white-label SaaS used by 12 studios and 12,000+ members. Currently Head of UX and Visual Design at Cosign, its first design hire. I work AI-natively, shipping production code daily. Based in Monterrey, Mexico, CST with full US overlap.
I design products and build them too. These are the principles I work by.
Simplicity that works
- Solve the real problem with the fewest moving parts
- Cut scope before cutting quality
- Make the simple path the obvious one
Design in the real material
- Explore in Figma, decide in code
- Treat what's in production as the source of truth
- Never design a screen I couldn't build and maintain
Own the whole arc
- Research, design, code and launch are one job
- Stay with the product after launch, where the real feedback is
- Give a reason for every decision
Let AI execute, keep the judgment
- Give the model a clear brief and a system to work inside
- Delegate what is cheap to check, then check it
- Keep money, trust and brand decisions in my hands
Turn repetition into systems
- Build the tool the second time a task repeats
- Theme each brand from one system
- Spend the time saved on the parts people notice
Design for how people really work
- Learn how they pay, talk and run their day before drawing anything
- Speed for the person who lives in the tool, delight for the visitor
- Let the client's brand lead and the software disappear
- Aug 2026 → nowHead of UX and Visual DesignCosignFirst design hire. Brand, website, collateral and content, evolving the brand book into a living design system.
- Mar 2025 → nowFounder and Product DesignerEclipseWhite-label SaaS for studios: research, UX/UI, design system and production code in Rails, Hotwire and Stripe Connect.
- 2023 → 2026Product DesignerProfound LogicSole designer for a team of eight engineers. 50+ features shipped, an 80+ component system across three products.
- 2021 → 2023Product DesignerVentupWeb and mobile for restaurant products. Three design sprints, 30+ usability rounds, a 150+ component system.
- 2019 → 2020Front-end DeveloperLagom Startup StudioMockups into responsive, maintainable interfaces.
- 2018 → nowIndependent Designer and DeveloperManzur Studio30+ end-to-end web products across Rails, React, Shopify and Webflow. Founded Ámbar Coffee.
- 2015 → 2018Digital DesignerIcalia LabsProduct design and front-end for client products. One of my first roles as a designer who ships.
- EducationB.A. Graphic Design and MarketingCEDIMRYT500 Advanced Yoga Instructor, Yoga Alliance.
Design
Product, UX and UI · Design systems and tokens · Interaction design · Information architecture · Research and usability testing · Prototyping
Engineering
Ruby on Rails · Hotwire · React · HTML, CSS and JavaScript · Tailwind · Stripe · Git
Tools
Figma and Figma MCP · Claude Code · Shopify · Webflow · Squarespace · Midjourney · Adobe CC
Ways of working
AI-native workflow · End-to-end ownership · Design-to-dev handoff · Cross-functional teams · Spanish, English, basic German