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Pedro Alcântara
Verified Expert in Engineering
Front-end Engineer and Developer
Campina Grande - State of Paraíba, Brazil
Toptal member since May 20, 2026
Bio
Pedro is a senior front-end engineer with 9+ years of experience specializing in the JavaScript/TypeScript ecosystem, with deep expertise in React, Next.js, and React Native. He bridges the gap between complex architectural planning and high-performance UX by building scalable web and mobile apps from scratch. Known for clean, maintainable code, Pedro excels in high-autonomy environments, delivering production-ready software that meets strict business timelines.
Portfolio
Dexian
React, React Native, JavaScript, CMS, GraphQL, Google Cloud, Firebase...
Ideate
React Native, Next.js, Turborepo, Convex, CanvasJS, Clerk, User Experience (UX)...
NeoCharge
Expo, TypeScript, GraphQL, Node.js, Next.js, Front-end Development, Vercel...
Experience
- Git - 11 years
- TypeScript - 9 years
- Node.js - 9 years
- Front-end - 9 years
- React - 9 years
- React Native - 8 years
- Expo - 6 years
- Axios - 6 years
Preferred Environment
Linux, Expo, TypeScript, Git, Java
The most amazing...
...thing I've created is a Fediverse open source app that was inspired by my pug. It's called Pugdom.
Work Experience
Front-end Engineer
2023 - 2026
Dexian
- Architected and managed high-performance eCommerce components using React, focusing on SEO optimization and conversion-driven user experiences.
- Optimized front-end performance and data retrieval by refining the GraphQL layer, significantly improving TTI and overall interface responsiveness.
- Streamlined transaction processing via improved HTTP interfaces and Axios, enhancing system reliability and user satisfaction.
- Implemented responsive design techniques and mobile-first strategies to reduce bounce rates and increase engagement.
Technologies: React, React Native, JavaScript, CMS, GraphQL, Google Cloud, Firebase, Contentful, Next.js, Front-end Development, Vercel, Codex, RESTFul APIs, Tailwind CSS, Payload CMS, User Experience (UX), API Integration, Full-stack, eCommerce, Inventory, Reporting, Asset Management, Dashboards, Amazon Web Services (AWS), HTML, User Interface (UI), Web Design, Android, Redux
Senior Front-end Developer
2025 - 2025
Ideate
- Spearheaded the development of a highly interactive moodboard creation tool utilizing a canvas-based framework, ensuring smooth rendering, real-time user interactions, and a seamless collaborative experience.
- Audited and optimized the serverless back-end layer built on Convex, significantly improving query performance, reducing latency for complex reactive data fetches, and data-binding canvas mutations.
- Maintained and scaled a high-performance Turborepo monorepo workspace, optimizing build pipelines, streamlining shared UI component libraries, and reducing CI/CD build times across teams.
- Integrated Gemini AI capabilities into the core product, engineering workflows that automatically analyzed user-generated moodboards to produce structured summaries for stakeholder distribution.
- Engineered a multi-tier authorization structure using Stripe to manage premium versus free-tier feature gating, handling secure webhooks, billing cycles, and user access state.
- Integrated and configured a robust authentication provider, Clerk, to manage secure user sessions, social logins, and tenant isolation across the application.
Technologies: React Native, Next.js, Turborepo, Convex, CanvasJS, Clerk, User Experience (UX), API Integration, Full-stack, Reporting, Dashboards, HTML, MySQL, Mobile Design, UI Animation, Mobile UI Design, UI Design, UI Engineering, User Interface (UI), Web Design, AI Integration, Redux, Stripe
Front-end Engineer
2022 - 2023
NeoCharge
- Developed a next-generation mobile application using React Native, focusing on scalable state management and modular architecture.
- Designed a GraphQL middleware solution to handle complex data requests for electric vehicle infrastructure.
- Collaborated on external API integrations for carbon footprint validation, ensuring secure and efficient data exchange.
- Established rigorous testing and code review processes to maintain high code quality and performance standards.
Technologies: Expo, TypeScript, GraphQL, Node.js, Next.js, Front-end Development, Vercel, Codex, RESTFul APIs, Supabase Auth, MongoDB, User Experience (UX), Swift, iOS, Mobile, API Integration, Reporting, Amazon Web Services (AWS), HTML, Mobile Design, UI Animation, Mobile UI Design, UI Design, UI Engineering, User Interface (UI), Web Design, Android, Stripe
Senior Front-end Developer
2021 - 2022
Framework System
- Collaborated within a global team in India and Russia to enhance native-based applications using WebViews for improved cross-platform functionality.
- Implemented advanced camera-based features and anti-counterfeit tools using specialized React libraries.
- Contributed to a high-precision geolocation and mapping project using drones for agricultural management.
Technologies: React Native, Expo, JavaScript, WebView, Next.js, Front-end Development, Vercel, Azure, Tailwind CSS, Vite, User Experience (UX), CSS, Mobile, API Integration, Reporting, NestJS, HTML, MySQL, Mobile Design, UI Animation, Mobile UI Design, UI Design, UI Engineering, User Interface (UI), Web Design, Android, Redux
Senior Front-end Developer
2018 - 2021
Stefanini Group
- Led the development of white-label React Native applications for major retail clients like Cencosud, focusing on componentization and reusability.
- Integrated SAP Commerce Cloud solutions to streamline enterprise data processing and back-end connectivity.
- Architected data processing solutions for large-scale financial institutions, including Caixa Econômica and Banco do Brasil.
- Developed Python/Flask applications integrated with IBM Watson to automate educational content generation.
Technologies: React, React Native, TypeScript, Java, C#, Front-end Development, Ajax, Azure, Data Engineering, RESTFul APIs, Tailwind CSS, Vite, MongoDB, User Experience (UX), CSS, Swift, iOS, Mobile, API Integration, Full-stack, eCommerce, Python, Reporting, Asset Management, HIPAA, NestJS, HTML, PHP, Mobile Design, UI Animation, Mobile UI Design, UI Design, User Interface (UI), Web Design, Android, Redux
Experience
Pugdom | Fediverse Application
https://github.com/cajuuh/pugdomPugdom is a React Native client for Mastodon that enables users to interact with the decentralized social platform. It supports both iOS and Android devices, offering a modern UI and efficient state management.
GarageJam | Music Social Media
https://github.com/cajuuh/garagejamv2A dynamic matchmaking and social networking platform built exclusively for musicians. It enables artists to showcase their audio/video portfolios and connect with compatible talent, streamlining how musicians meet, collaborate, and form new bands or musical projects.
White Label App
https://play.google.com/store/apps/details?id=com.cencosud.prezunic&hl=pt_BRI designed this white-label application in React Native from scratch for Cencosud to be applied across all the supermarkets they own. The idea of the app was to give discounts on products based on the user's social number registered on the app.
Education
2013 - 2018
Bachelor's Degree in Computer Science
Federal University of Campina Grande - Campina Grande, Paraiba, Brazil
Skills
Libraries/APIs
React, Node.js, Stripe, CanvasJS
Tools
Git, Expo, WebView, Codex
Languages
TypeScript, JavaScript, HTML, CSS, Swift, Python, Java, C#, GraphQL, PHP
Frameworks
React Native, Next.js, Tailwind CSS, NestJS, Redux, Payload CMS
Platforms
Mobile, Linux, Contentful, Vercel, iOS, Amazon Web Services (AWS), Android, Firebase, Azure, Clerk
Industry Expertise
Web Design
Paradigms
Mobile Design, Mobile UI Design, UI Design
Storage
PostgreSQL, MongoDB, MySQL, Databases, Google Cloud
Other
Front-end, Axios, Front-end Development, RESTFul APIs, API Integration, Reporting, Algorithms, App UX, App UI, Back-end, CMS, Ajax, Data Engineering, Supabase Auth, Vite, User Experience (UX), Full-stack, eCommerce, Inventory, Asset Management, Dashboards, HIPAA, UI Animation, UI Engineering, User Interface (UI), AI Integration, Machine Learning, Neural Networks, Supabase, Turborepo, Convex
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