Andrey Silveira

- Led frontend architecture and feature delivery across multiple agile projects. - Maintained and enhanced enterprise ExtJS applications, ensuring stability and operational continuity. - Spearheaded Vue 2 to Vue 3 migrations, modernizing components and state management. - Owned end-to-end frontend development, from architecture to production. - Built scalable, high-performance applications with Vue.js, Nuxt.js, Vuex, and Pinia, emphasizing modularity, maintainability, and performance optimization.

- Redesigned enterprise websites with HubSpot, improving performance, accessibility, and SEO by 70%+. - Helped build the internal design system using Atomic Design and Storybook.js for reusable component documentation. - Automated frontend workflows with Gulp.js and Grunt, reducing development time by ~50% and improving delivery efficiency. - Built and maintained scalable React.js applications, improving stability, maintainability, and continuous feature delivery in agile environments.

- Developed email marketing campaigns reaching 1M+ customers, increasing engagement and brand visibility. - Built responsive landing pages for major companies, improving user experience and supporting business growth. - Implemented features with PHP, JavaScript, HTML5, CSS3 (SASS/SCSS), Bootstrap, and WordPress, improving usability. - Applied agile methodologies to deliver iterative solutions through continuous feedback, collaboration, on-time delivery, and cross-functional teamwork.

- Engineered cross-platform Ionic 3 apps with Firebase and PWA support for Android and iOS. - Built SaaS solutions with the MEAN stack (MongoDB, Express.js, Angular 6, Node.js) and TypeScript, improving performance and code quality. - Integrated the Braspag payment gateway, expanding payment capabilities and transaction flexibility. - Led Google Play and Apple App Store releases, ensuring compliance and successful delivery to hundreds of active users through CI/CD workflows and release automation.

Relevant topics include Blockchain Architecture, Smart Contracts, Solidity, Cryptography, Distributed Ledger Technologies (DLT), Ethereum, Cloud Security, Data Protection, Decentralized Systems, and Information Security.