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Ronald Lopez portrait
Hello there! Nice to meet you.

I'm Ronald Lopez and I love design!

I spent 8 years as founding designer at OneLocal (YC S17). Today I work AI-native, with agents in the loop from research through to production code.

Ronald Lopez at work

About me

I’m a curious craftsman

Ronald Lopez at work

For 8 years I was the founding designer at OneLocal (YC S17), where I helped scale it from zero to a multi-product B2B SaaS platform with 2,100+ partners. My design work spanned across 7 products, 2 mobile apps, and 100+ client websites, as well as sales decks, marketing materials, and interactive demos. Most recently, I spent 4 years at Legend, designing for Covers, one of the biggest names in sports betting.

My work sits between design and front-end code, so the fidelity of a mockup rarely stops at handoff. I want the shipped product to match the intent of the first sketch. AI is built into how I get there. Agents help me synthesize research, prototype in code, and build production front-ends, and after 13 years of shipping, I know which outputs are worth keeping.

If you have a product or brand that needs care, clarity, and craft, let's build something good together.

Toolbox

Covers · 2021 – 2026

Designing the commercial layer of a sports betting leader

Spent 4 years on the commercial squad at one of the biggest names in sports betting, redesigning the pages that carry the business around how Users actually scan them.

Industry
Sports Betting Media
Role
Product Designer
Covers sportsbook review page redesign

Covers Review Page Redesign

A research-driven redesign for underperforming review pages, leading with less so the clickout gets the room it needs.

UI DesignUX ResearchDesign SystemResponsive Design
Covers commercial toplist card redesign

Covers Commercial Toplist Design

A research-led redesign of the toplist behind every Covers commercial page, rebuilt so the bonus and the clickout lead.

UI DesignUX ResearchDesign SystemResponsive Design

Self-Directed · 2026 – Present

From AI agents to design systems, built end to end

Work I scope, design, and ship myself, from product vision and design system through to the code that runs in production.

Industry
AI & Design Engineering
Role
Designer & Engineer
The agent’s avatar beside two dark interface panels, ringed by icons for the memory, task, scheduling, knowledge, and skill modules that plug into the platform

Autonomous Agent Platform

A self-hosted personal agent with persistent memory, real tool access, and a consent model that fails closed.

AI / LLMProduct DesignDesign SystemDesign Engineering
ronglopez.com portfolio and design system

Portfolio Design System

The portfolio you’re on now, designed system-first in Figma, then hand-coded from the same tokens.

Product DesignDesign SystemAccessibilityUI Design

OneLocal · 2013 – 2021

Building the design function at a B2B SaaS from zero

Founding designer for 8 years, scaling OneLocal (YC S17) from zero to a multi-product platform serving 2,100+ partners across 7 products, 2 mobile apps, and 100+ client websites.

Industry
B2B SaaS
Role
Founding Designer
Screenshot of OneLocal LocalVisits User Web App showing appointment booking interface

OneLocal User Booking Web App

A self-serve, white-label booking flow that lets Users book in a few steps instead of calling.

UX ResearchBooking FlowWhite LabelUser Flow
Screenshot of OneLocal LocalVisits Dashboard showing booking calendar and staff schedules

OneLocal Booking Dashboard

A scheduling dashboard on the calendar model partners already knew: agenda on mobile, full grid on desktop.

Product DesignUX ResearchDashboard UIResponsive Design

Design the journey first, then layer thoughtful craft on top. When the foundations are right, the experience feels natural instead of forced.

A principle I design by

Let's Connect

Let's build a mental model that clicks