Designing thehuman sideof an AI era

DesignBuildShip

Head of Product at Naowee. I set direction across the platform and build the prototypes that define it. Before that, Andes at Mercadolibre — the design system behind 18 countries, 400+ designers and 2,000+ engineers.

Where I've worked

  • Naowee
  • Mercadolibre
  • Aval Digital Labs
  • Banco de Occidente
  • Globant
  • Qrvey
  • Ideaware

01 — Selected work

Selected work

12 years of systems, products and teams — from LATAM's largest marketplace to national banks, cruise lines and early-stage startups, plus two products of my own, designed, built and shipped end to end. Eight that shaped how I work, and two I took on for the pleasure of it.

Full CV →

02 — Craft

How I work

Expertise

FIG 0.1

Product direction

I decide what a product should be and then stay accountable for it shipping. At Naowee that means eight business modules, the states and roles underneath them, and a review where the built version has to match the demo.

FIG 0.2

Design systems

Tokens, components, governance and the boring documentation that makes good design repeatable. I have built one for a bank and maintained one used by 400+ designers and 2,000+ engineers across 18 countries.

FIG 0.3

Design engineering with AI

I prototype in code, with Claude Code, Cursor and Gemini carrying the repetitive weight. The output is a running product, not a mockup, which is why business signs off against it instead of against a document.

How I work

  1. 01

    Read the domain before drawing

    Before a screen exists I map how the thing actually works. For Naowee's inspection flow that was 45+ states and 15 roles. The states were the product; the interface was the easy part.

  2. 02

    Build the language, not the screens

    The failure mode is eight modules with eight dialects. So I build the system first and hold everyone to it, myself included. No custom component — if the system is missing something, the system gets extended.

  3. 03

    The prototype is the spec

    What business signs is a working prototype with real roles and real states, walked through one story at a time. Disagreement surfaces while it is still cheap and engineering receives something already resolved.

  4. 04

    Ship, then listen

    Daily use surfaces what no spec would have. olbo taught me that in a week — a timezone bug that broke the colour after dark, receipts I refused to retype. Each one became a decision, a test and a version bump.

03 — About

About

I'm a product designer who builds. I lead product at Naowee and ship the prototypes that define it — one design system, working code, AI in the loop. Before that I maintained Andes, the design system behind Mercadolibre across 18 countries.

What has kept me here is not any single screen. It is the systems underneath: the tokens, the governance, the shared language that lets hundreds of designers and thousands of engineers ship as one product.

The line between designing and building stopped being useful to me. I prototype in code, ship real interfaces, and let the system and the model carry the repetitive weight. olbo and DC Medical are the clearest proof: a finance app and a clinic's operating panel I designed, engineered and shipped on my own, both in daily use.

/ Experience

  • NaoweeJan 2026 — NowHead of ProductSee case →
  • MercadolibreJan 2024 — Jan 2026Tech Lead · Design SystemsSee case →
  • Aval Digital LabsNov 2018 — Jan 2024Senior Product Designer · DS GatekeeperSee case →
  • GlobantAug 2017 — Nov 2018Senior Product DesignerSee case →
  • QrveyOct 2016 — Aug 2017Lead UI DesignerSee case →
  • IdeawareMar 2016 — Aug 2017Senior UX/UI DesignerSee case →
  • Earlier

    Smartbiz SolutionsOct 2014 — Feb 2016Junior UI Designer
  • FreelanceFeb 2010 — Oct 2014Graphic & Interface Designer

/ Education — Professional Graphic Designer, Universidad Autónoma del Caribe (2006 — 2009)

/ Languages — Spanish Native · English B1 · Working proficiency

Full CV
Doug Vargas, photographed in black and white against a dark background.
Based
Barranquilla, Colombia · UTC-5
Currently
Head of Product · Naowee
Focus
Design systems · AI-native product
Open to
Selected consulting on design systems and AI-native product
Languages
Spanish (native) · English (B1)

04 — Contact

Let's talk

The fastest way to reach me is LinkedIn. Email works too.

/ The signal

I lead product at Naowee and take on selected consulting alongside it. Most interested in design systems at scale and AI-native product work.