Designer who builds.

A Brazilian product designer, now Paris-based, who takes products from idea to launch: brand, interface, and the code in between.

Mayara Sousa, product designer and builder, on a Paris street with hand-drawn doodles overlaid

I'm Mayara, a Brazilian product designer and builder based in Paris. For the past six years I've designed and built digital products for startups and boutique businesses: brand systems, UX/UI, and the production platforms that bring them to life. I started out as a brand and web designer and grew into someone who takes a product all the way to shipped code. I care about the whole thing working: not just how a product looks, but how it's built, how it performs, and how it feels to use.

That path led to Tavla, my own company, whose first iPhone app launched in October 2026. It's where I'm steering my work: deciding what gets built and why, not only how it looks, and then shipping it. I build with AI in the loop and hold an MBA in AI for Business, so the strategy and the code come from the same place.

Professional Experience

Founder & Product Designer

Tavla • Paris, France
2026 – Present

Tavla makes tools for getting your attention back: not against screens, against the feed. The first app, Tavla Block for iPhone, launched on the App Store in October 2026. You pick the apps that take your hours, start a session, and decide for yourself how hard it should be to end it early. I set the direction, designed the brand and the product, wrote the app in Swift and SwiftUI with Claude Code, and took it through three rounds of App Review. A Mac writing app and a shared subscription are next.

Product Designer & Builder

Self-Employed • Paris, France
03/2020 – Present

I design and build digital products for startups and boutique businesses, from brand systems and UX/UI through to shipping on WordPress and Shopify, with custom PHP and MySQL when a product calls for it. Recent work includes Mimoo Baby, a baby-shower gifting platform with two account types, social sign-on and custom order-to-account logic, and EverSafe, a first-aid training platform with a four-step booking flow. A full project runs six to ten weeks end to end, because design and build happen in the same pass rather than across a handover. When a client needs operations as well as a product, I build those too: Shelf Beauty, a Brazilian beauty-tools brand, runs its team, its WhatsApp customer service and its partner-studio sales on a PHP and MySQL platform I built, wired to Shopify, Twilio and OpenAI (14.4% of shoppers who get its abandoned-cart messages go on to buy), and transactional email on every recent project goes through Resend. I work in git, design component systems rather than one-off screens, document them so someone else can build against them, and keep the front end semantic and accessible. I build with AI in the loop (Claude Code, Codex) and can read, shape, and debug the code I ship.

Product Designer (Freelance Contract)

Swiftic • Remote
06/2020 – 04/2023

Sole designer for almost three years on a no-code mobile app builder for small businesses, working with a product manager and the iOS and Android developers. It started with new templates for the apps the platform generated and grew into an 18-month redesign: I interviewed close to 100 users and analyzed support tickets, then consolidated five-plus conflicting design systems into one and redesigned the flows from the landing page to publishing an app. Alongside the product I designed the email marketing and the day-to-day design work across product and marketing. Support tickets about app submission dropped by 30%, and the company was acquired in 2023.

Marketing & Sales Assistant Manager

MSC Cruises • Italy
09/2019 – 01/2020

Executed high-revenue marketing campaigns for onboard retail platforms. Created aligned visual assets and oversaw merchandising to maintain a premium brand experience across a global, multicultural audience.

Skills & Tools

Design

  • UX & Product Design
  • UI & Visual Design
  • Design Systems & Documentation
  • Wireframing & Interactive Prototyping
  • Accessibility
  • Brand Identity

Build

  • WordPress & Shopify
  • Custom PHP & MySQL
  • APIs & Integrations (Twilio, Resend, social sign-on)
  • Semantic HTML, CSS & JavaScript
  • Git-Based Workflow
  • AI-Assisted Development
  • Reading & Debugging Code

Tools

  • Figma
  • Adobe Illustrator & Photoshop
  • Claude & Claude Code
  • ChatGPT, Codex & Gemini

Languages

  • PortugueseNative
  • EnglishFluent, professional
  • ItalianConversational
  • SpanishConversational
  • RomanianBasic reading & writing
  • FrenchCurrently learning

Education

MBA in Artificial Intelligence for Business

Faculdade Exame, Brazil • Part-time, remote • 2025 – Dec 2026

Focused on turning generative tools into real, responsible products rather than just faster workflows.

BA in Multimedia Arts

Centro Universitário Belas Artes de São Paulo • 2021 - 2023

Specialized in the intersection of digital media, design principles, and interactive content creation.

Cybersecurity Certification

Upcoming

My next step: formal training in cybersecurity, deepening the technical, under-the-hood side of building for the web.

Achievements

The Break Fellowship: Top 10% Selection

EU-funded program supporting women entrepreneurs with international business training and a strategic development residency in Spain.

Employee of the Month, MSC Cruises

Recognized for high-impact performance and leadership, Oct 2019.

Let's build something.

I'm available for freelance projects now, and open to full-time roles where I can shape and ship real products. If you're building something, I'd love to hear about it.