Frontend Engineer — React · TypeScript

Danilo
Vieira

I build and architect scalable, high-performance web applications — with accessibility and code quality as defaults, not afterthoughts.

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About

Bold ideas, grounded execution.

I'm a frontend engineer specializing in building and architecting scalable, high-performance web applications with React, TypeScript, and modern JavaScript tooling. Currently at Marqii (US), I own frontend solutions that power restaurant dashboards, embeddable widgets, and real-time integrations — always aiming for architectural integrity and measurable business impact.

My background in EdTech at Trybe and Rocketseat sharpened my technical depth and mentorship: I've helped 200+ developers level up, and I bring that same focus on clean, maintainable architecture to every team I join.

  • Based in Brazil · UTC-3
  • 100% Remote
  • PT · EN
  • Mentored 200+ devs
Experience

Shipping since 2020.

Marqii

Frontend Software Engineer

Sep 2023 — Present
  • Core development of Marqii's SaaS platform, centralizing menus, business hours, and customer reviews for restaurants across multiple providers.
  • Build and maintain the partner dashboard and the embeddable widgets restaurants drop into their own websites.
  • Scalable React components, UI performance and accessibility work, cross-functional feature delivery, and code quality through modern tooling and testing.

Trybe

Frontend Instructor III

Oct 2022 — Jun 2023
  • Subject-matter expert for the modern frontend curriculum, mentoring 200+ developers.
  • Advanced workshops and live-coding sessions on React, TypeScript, component architecture, state management, testing, and accessibility.
  • Guided complex end-to-end projects with in-depth code reviews enforcing industry-level best practices.

Grupo PRIMO

Developer & Tech Writer

Feb 2022 — Aug 2022
  • Owned the integration between the Staart platform and Discord (Node.js, social login APIs), automating student onboarding and cutting manual work by 90%.
  • Developed technical learning materials, quizzes, and supplemental resources; managed weekly course releases and validated content accuracy.

Rocketseat

Developer & Instructor

Jul 2020 — Feb 2022
  • Developed and tested internal educational tools using React, React Native, and Node.js.
  • Implemented unit and end-to-end testing (Jest & React Testing Library), significantly improving code reliability.
  • Created supplemental learning documentation and supported a large community of developers.

Education — Rocketseat · GoStack Bootcamp, Full Stack Development (2020)

Skills

The toolkit.

  • React
  • TypeScript
  • Next.js
  • Node.js
  • React Native
  • Jest & Testing Library
  • Accessibility
  • Component Architecture
  • State Management
  • Design Systems
  • AI-Assisted Workflows
Contact

Let's build something.

Always up for interesting frontend projects, collaborations, and conversations — remote, from Brazil to anywhere. The fastest way to reach me is LinkedIn or GitHub.

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