# Ravier Sousa

> Ravier Sousa is a product designer at Microsoft, designing AI agent experiences for Engage. Based in Toronto, with 8+ years shipping 0→1 products across fintech, gaming, e-commerce and SaaS.

I’m Ravier, a product designer at Microsoft, where I design AI agent experiences for Engage. I was born and raised in the periferia of Brasília, Brazil’s working-class outskirts. A Black kid from the periferia designing for big tech is outside the statistics, and getting here took a lot of hard work.

## Pages

- [About](https://raviersousa.com/about): Full story, work experience, education and certifications
- [Work](https://raviersousa.com/work): Selected case studies
- [Snapshots](https://raviersousa.com/snapshots): Shorter project highlights
- [Full profile](https://raviersousa.com/llms-full.txt): Story, experience, case studies, recommendations and FAQ in one file

## Experience

### Product Designer, Microsoft

2024-01 to present · Toronto, Canada

- Designs for Engage, one of the largest enterprise community platforms, with more than 60 million active users.
- Leads design for Community Agent, an AI agent that lives inside communities rather than a chat window, answering alongside people with human-in-the-loop review and source transparency.
- Designed Community Experts, a role held by more than 600,000 people that gives trusted members authority without admin permissions and drove engagement across the platform.
- Ships production pull requests daily, using the Figma MCP and GitHub Copilot CLI.

### Product Designer, Stone

2021-11 to 2024-03 · Brazil

- Owned the dashboard for Pagar.me, a complex payments platform serving more than 5 million clients, translating API capabilities into dashboard experiences, including KYC and chargebacks.
- Cut the most frequent dashboard support cases by 65%; client dashboards reached 80% CSAT.
- Self-service chargeback disputes: 43.5% fewer chargeback support tickets, 18% more disputes submitted, R$2.8M+ in additional revenue disputed per year.

### Product Designer, Gamers Club

2021-03 to 2021-11 · Brazil

- Created Desafio RP in the microtransactions squad of Latin America’s largest esports platform. It grew monthly revenue 10× and is still the store’s best-selling product.
- Part of the growth work that took the platform to its all-time peak of 80,000 subscribers.

### UI/UX Designer, Guidance Experts

2020-04 to 2021-03 · Brazil

- Designed for four clients in parallel at a software house that has generated more than R$500 million in results for its clients, including MIT Sloan Management Review Brasil and HSM Management.
- Ran design workshops with clients to prioritize strategy.

### Product Designer, Instabuy

2019-01 to 2020-04 · Brasília, Brazil

- First product designer at a grocery marketplace startup, working directly with the CEO and CTO.
- Helped grow the customer base by 400%.

### Web Designer, Universidade de Brasília

2018-01 to 2018-12 · Brasília, Brazil

- Maintained the university’s content portal for students and faculty.

### Support Analyst, Ministério das Comunicações

2016-01 to 2017-12 · Brasília, Brazil

- Supported Internet Para Todos, a federal program bringing internet to remote regions, and the federal electronics disposal program.

## Case studies

- [Designing trust into Engage’s first AI agent](https://raviersousa.com/work/community-agent) (NDA; full case is password-protected): Microsoft · Engage, 2025-2026. I led the end-to-end design of Community Agent, the first AI agent in Engage, helping admins and experts answer more questions at scale while keeping humans in control of community conversations.
- [Giving invisible experts a visible role](https://raviersousa.com/work/community-expert) (NDA; full case is password-protected): Microsoft · Engage, 2025-2026. I designed Community Expert end to end, taking a new role system from concept to scaled adoption: a dedicated role that helps organizations recognize their subject matter experts, makes expertise visible across communities, and lets experts verify answers without administrative permissions.
- [Making chargeback disputes worth a merchant’s time](https://raviersousa.com/work/chargeback-dashboard): Stone · Pagar.me, 2022-2023. We turned Pagar.me’s manual, email-based chargeback process into a self-service dashboard where merchants track, contest, and win back chargebacks.
- [Selling a boost without breaking the ranking](https://raviersousa.com/work/desafio-rp): Gamers Club, 2021. As the designer for Gamers Club’s Coins Store, I led Desafio RP end to end. A recurring boost that became the store’s best-selling product ever, without unbalancing the ranking the platform is built on.

## Snapshots

- Instabuy: Instabuy is one of the largest e-commerce platforms for supermarkets in Brazil. I joined as one of the first employees, when it had its first clients, and stayed through the growth from 20 to more than 500 clients and from a team of 4 to 35, designing both the web admin that store teams run orders from and the mobile app that pickers and drivers use on the floor.
- Tripee: Tripee is a corporate travel platform used by companies like Petrobras, Brazil’s largest company, Sesc, and Loft. It covers the whole trip, not just the ride: app based rides, flights, hotels, chartered fleets and car rental. As the company’s first designer, I rebuilt the entire app and web experience, which until then had been built by developers alone.
- BDS Data Solution: BDS Data Solution is a data specialist company with a strongly engineering-driven culture. Its financial data product carried more than 20 years of legacy and served a deeply technical audience. I led the redesign of both surfaces the product lives in: the web portal and the Excel plugin analysts use to pull data straight into their spreadsheets.
- SD Conecta: SD Conecta is the largest medical community in Brazil: a verified social network where more than 25K doctors discuss clinical cases in specialty communities. A Cubo Itau startup, it also builds sponsored communities with partners like Sanofi.
- Grupo SC: Maxx is a conversational AI agent from Grupo SC, one of the largest pharmaceutical groups in Brazil. It lets pharmacy professionals manage their entire operation through a chat-based agent, part of the group’s push to digitalize pharmacy retail.
- Brazilian Government: A project for the Ministry of Mines and Energy focused on energy efficiency, built on the Brazilian government’s official design system and public accessibility standards for web and mobile.

## FAQ

### What does Ravier Sousa do at Microsoft?

He is a product designer on Engage, one of the largest enterprise community platforms, with more than 60 million active users. He leads design for Community Agent, an AI agent that lives inside communities and answers alongside people with humans in control, and designed Community Experts, a role held by more than 600,000 people.

### What is his design specialty?

AI agent experiences: human-in-the-loop review, source transparency, trust, and fitting agents into the workflows people already use. Before Microsoft, he shipped 0→1 products in fintech (Stone, Pagar.me), gaming (Gamers Club) and e-commerce (Instabuy).

### Does he code?

Yes. He has a degree in Analysis and Systems Development, prototypes in code, and ships production pull requests at Microsoft every day using the Figma MCP, Claude Code, Codex and GitHub Copilot CLI.

### What results has he delivered?

At Stone, he cut the most frequent Pagar.me dashboard support cases by 65%, and his chargeback redesign reduced chargeback tickets by 43.5%. At Gamers Club, Desafio RP grew monthly revenue 10× and is still the store’s best-selling product. At Instabuy, he helped grow the customer base by 400%.

### Where is he based?

Toronto, Ontario, Canada. He works in English and Portuguese, with some Spanish.

### How can I reach him?

By email at ravierlopes2323@gmail.com or on LinkedIn at linkedin.com/in/ravierlopes.

## Contact

- Email: ravierlopes2323@gmail.com
- LinkedIn: https://www.linkedin.com/in/ravierlopes/