Open to opportunities

Marcus Vinícius Pereira e Sousa

@marcussousaux

Message

I am a Senior Product Designer with 5+ years of experience creating scalable and user-centered solutions

Brazil

Message

What I'm looking for

I seek product design roles where I can shape cybersecurity and data-rich products, collaborate cross-functionally, measure impact, and build accessible, scalable design systems.

I am a Product Designer with over 10 years in tech and 5+ years focused on user-centered digital experiences across cybersecurity, fintech, education, and social impact. I specialize in simplifying complex flows, designing scalable systems, and aligning product vision with user and business goals.

In my current role I plan and conduct user research, build design systems, prototype in Figma, and collaborate closely with PMs, developers, analysts, QA and stakeholders to deliver accessible, data-rich interfaces for SIEM, MDR and XDR tools.

I measure impact through metrics like task success rate and NPS, run usability tests to iterate solutions, and ensure compliance with accessibility (WCAG) and data protection standards while using tools such as Maze, Notion, Jira, Pendo and V0.dev for validation.

Experience

Work history, roles, and key accomplishments

Current

Product & Cybersecurity Designer

Current

Confidential Company

Jun 2022 - Present (3 years 3 months)

Plan and conduct user research and usability tests to inform designs for MDR/XDR/SIEM products, build and maintain a shared design system, and align UX solutions with business KPIs to improve task success and NPS.

User Research Figma Maze Design Systems Prototyping Notion Jira Pendo

UX Designer

Banco do Brasil

Jun 2021 - Oct 2022 (1 year 4 months)

Led design for high-security internal credit card platforms, standardised components and simplified complex SIS BB data into usable flows, running usability tests to reduce errors and improve efficiency.

High Security UX Design Systems Data Visualization Usability Testing Prototyping Accessibility Internal Tools

UX Designer

New School

Jun 2020 - Mar 2021 (9 months)

Designed UX flows and prototypes for an educational platform, conducted interviews and tests with students and educators to improve accessibility, and ensured compliance with LGPD.

User Research Prototyping Accessibility Usability Testing