Vitor Rocha

Senior Product Designer & Product Owner

I design AI and B2B SaaS products end to end, from discovery and research to wireframes, prototypes, and high-fidelity UI. I also write the PRDs and user stories that get them built.

Experience
5Years in B2B SaaS
Reach
40K+Users across platforms I’ve worked on
Products
6Web and mobile products
Research
62Individual research sessions
Drag the points

Case studies

arOS 2.0 · From the home screen to a grounded answer

AI marketing SaaS

Conversations that convert

I redesigned arOS around a single chat grounded in each customer's business context, and owned it end to end: research, prototypes, high-fidelity UI, the PRD, and shipped features.

Business context in almost 70% of conversations, up from about 40%

  • AI product
  • Conversational UX
  • User research
  • Product ownership
  • Design system
Read the case study

MZiQ · Company profile

B2B SaaS for investor relations

Everything IR needs, in one place

A platform used by publicly traded companies and investment funds (10K+ users). I brought investor and stakeholder information into connected profiles for contacts, companies, and shareholder groups.

Why it mattered: 11 of 15 IR teams juggled several platforms to prepare a single meeting.

  • B2B SaaS
  • Data-heavy UI
  • Access and permissions
  • Design system
Read the case study

MZ App

An app for following CVM filings

Centralizing access to information that helps people decide

I designed a mobile experience for following CVM filings: user-selected companies and categories, SMS and push alerts, in-app reading, and date-based browsing.

Why it mattered: filings communicate company results and decisions to investors and stakeholders.

  • Mobile UX
  • CVM filings
  • Personalization
  • Design system
Read the case study

MZ Private

B2B SaaS for sensitive data storage

Informing securely, for compliance and credibility

A secure document-sharing workspace where a listed company's IR team shares sensitive documents, internally and with investors. I designed who gets in, who sees what, and a record of everything that happens.

Why it mattered: CVM Resolution 44 makes officers jointly liable when material information leaks through subordinates or third parties.

  • B2B SaaS
  • Security and permissions
  • Audit
  • Design system
Read the case study

About

I came to design from communications and found in it the mix of creativity, structure, and empathy I had been looking for.

For the last 5 years I've designed B2B SaaS products. First for investor relations at MZ, where I coordinated 5 development teams and created and maintained the MZ design system. Then for AI marketing at arOS, where I was also the Product Owner.

How I work

  • Decisions backed by evidence. I use the CSD framework to map known facts, assumptions, and open questions, then plan research around what needs to be validated. In interviews, I ask about actual behavior rather than relying only on hypothetical preferences. Interviews, moderated usability tests, and session recordings cover each other's blind spots.
  • From evidence to results. I synthesize the patterns and turn each one into a framed initiative: the problem, the appetite (time budget), the solution, the risks, the scope boundaries, and the metric for evaluating success. After it ships, I follow the numbers every week.
  • Requirements ready to build. User stories with acceptance criteria and design specs tied to the coded design system.
  • AI in the process and in the product. I prototype in code and validate quickly with users.

Education

  • Technologist Degree in Audiovisual Production
    FAPCOM
  • UX/UI Design Certificate Program
    UX Unicórnio. Portfolio project with Volkswagen
  • Graphic Design Certificate Program
    SAGA

Tools

  • Figma (Variables, Auto Layout, components), FigJam, Miro
  • Maze, Dovetail, Hotjar, PostHog
  • Claude Code, React and HTML/CSS for prototypes
  • Jira, ClickUp

Contact

Open to senior product design roles, in Brazil or remote. WhatsApp is the fastest way to reach me.