Product designer · AI and innovationTwenty years designing product. Today, AI that companies trust.
I led design at CVC, Natura, Porto and Triggo.ai. Today I design and code Localhub, a SaaS with AI agents in production.
Where this work was done
Nine projects, with the outcome of each one.
The first three open as full cases.
01Localhub · own product with AIFrom lost WhatsApp threads to a sales systemIn production, 17 accounts and 2,008 real leads
02Triggo.ai · generative AIBuilding an AI agent without writing a line of codeThree assistants, none answers without citing its source
03Localhub · applied AI and governanceSales agents with governance24,795 agent actions on the record, with a trail and an off switch
04Porto · regulated enterpriseA health app for more than 2 million peopleNPS from 35 to 61, on an app with more than 2 million users
05Natura & Co · enterprise at scaleThe checkout of 1.2 million consultantsAround US$ 2 million per week in uplift
06CVC Corp · award winning innovationOnline to store, across more than a thousand storesABEMD Gold Award, across more than a thousand stores
07Unidas, Vamos and 3 Corações · enterpriseData and AI products inside large companiesInternal products adopted with no formal training
08Consulting · discovery and product designThree operations mapped from the field to a prototypeField research, service journey and an interactive prototype
09Clients · web designSites and editorial pieces with their own visual worldThe client publishes on their own afterwardsLook for the skill your role asks for.
Every project, filtered by skill, client or name.
ProductLocalhub · 2026From lost WhatsApp threads to a sales systemIn production, 17 accounts and 2,008 real leadsRead the case →ProductTriggo.ai · 2023 to 2025Building an AI agent without writing codeThree assistants, none answers without citing its sourceRead the case →ProductLocalhub · 2026Sales agents with governance24,795 agent actions on the record, with a trail and an off switchSee →
EnterpriseCS Frotas · 2023 to 2025AI credit contract analysisNine clause blocks, each one checked on its ownRead the case →
EnterpriseMD Health · 2023 to 2025AI assisted clinical chatOnly people who prove their licence get to askRead the case →EnterprisePorto · 2022 to 2025A health app for more than 2 million peopleNPS from 35 to 61 after the redesignRead the case →From lost WhatsApp threads to a sales system
Brazil has almost 24 million small businesses and nearly none of them have sales technology. I designed and built the entire CRM, from the first sketch to the operation running in production today, with AI inside the product.
Executive dashboard, this week against the last one
Visual pipeline, the whole operation on one screen
My day, what to do right now without thinking
Company WhatsApp, the whole team on one number
Goals and funnel, with conversion between stages
In AI, the design work lives in the margin around the answer.
A demo answers the right question instantly. A product has to withstand latency, invention, cost and audit. I design those five states from the start.
While the model thinks
Streamed partial answers, work that continues in the background and a screen that never freezes on a slow call. People can walk away without losing what they wrote.
When the model is wrong
The source cited next to the answer, an explicit scope of what the AI knows and a one click exit to a human. Fixing has to cost less than discovering the mistake later.
What it costs and who may use it
A permission gate and a cost ceiling per customer, applied before the call. People without access understand why and people with access can see the month's consumption.
What the AI did, on the record
Every AI action leaves a human readable trail, with a governance screen for the administrator and a per conversation off switch.
How we know it got better
Answer evaluation inside the flow, user feedback at the point of the problem and the metric agreed before shipping.
Four numbers, with the source of each one.
Reinner is excellent to work with. Curious and resilient, always focused on solutions that challenge the status quo. Together we created a very successful online to store case for a company that was 100% offline, with more than a thousand stores.
Reinner has a restless mind, ahead of its time, always tuned to current trends. He understands the business deeply and solves with both technique and vision.
Creativity and the ability to adapt projects to the budget are Reinner's trademarks. We delivered important projects at almost zero cost.
Reinner is one of those people who genuinely love what they do. With absurd creativity, he adds enormous value wherever he goes.
Let's talk about your product.
Senior product design focused on AI, design leadership or building AI products. I reply fast.
Open to product designer roles focused on AI and innovation.
Read the build in public. Every week I write about a product decision, what shipped and what went wrong.