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about me

Billy

Hi! I'm Billy Pereira, a software engineer with 9 years of experience in backend, web and mobile. Currently focused on mobile development with React Native, building high-performance applications used by millions of users.

My journey in tech started as a self-taught developer, driven by curiosity and the desire to create. At Livelo, I lead the development of mission-critical mobile features. Before that, at 2GO Bank, I was instrumental in delivering secure mobile banking features like PIX and smart statements. At EMSERH, I streamlined hospital medication tracking through robust offline-first mobile architecture.

Experience

I have solid experience across the full stack, currently focused on mobile:

  • Mobile: React Native, Expo, Redux, Firebase, Sentry
  • Frontend: TypeScript, React, Vue.js, Next.js
  • Backend: Laravel, PHP, Node.js, Python, Django, REST APIs, GraphQL
  • Data: MySQL, PostgreSQL, Redis
  • Methodologies: TDD, Agile, Clean Code, CI/CD

Education

Bachelor in Information Technology / Computer Engineering — UFMA (Federal University of Maranhão)

Languages

  • Portuguese: Native
  • English: B2

Philosophy

I believe technology should solve real problems and improve people's lives. That's why I always seek to deeply understand business needs before proposing technical solutions.

I'm a strong advocate for continuous learning and knowledge sharing. Through my blog, I share experiences and learnings that can help other developers on their journeys.

Contact

Want to chat about technology, projects or opportunities? Get in touch: