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Antônio Lopes

@antniolopes1

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Senior Front-End Developer specializing in scalable, user-focused web applications.

Brazil

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What I'm looking for

I seek a senior front-end role where I can lead feature delivery, improve UX and architecture, and contribute to design systems within collaborative, growth-oriented teams.

I am a Senior Front-End Developer with a Bachelor's in Computer Engineering and extensive experience building scalable, modular web applications for e-commerce, fintech, and enterprise platforms. I consistently deliver high-quality code with strong test coverage and contribute to design systems and front-end architecture.

My work includes leading feature delivery from requirements to production, implementing integrations with REST APIs, creating reusable components with Vue.js and Ember.js, and improving UX and performance across multiple products. I have led teams, planning sessions, and contributed to recruitment and production support.

Key achievements include developing critical modules for monitoring and credit pre-analysis, driving Storybook improvements and component testing at American Eagle, and building financial calculation scripts that directly impacted client investment allocations. I proactively identify technical risks and drive clean, maintainable solutions.

Experience

Work history, roles, and key accomplishments

Current

UI Engineer

Current

American Eagle

Apr 2024 - Present (1 year 7 months)

Develop and deliver modular, high-coverage front-end features for the e-commerce site, improving Storybook components and resolving production bugs to enhance reliability and UX.

Ember.Js JavaScript TypeScript Storybook Functional Testing CMS

Senior Front-End Developer

Vega Monitoramento

Mar 2023 - Apr 2024 (1 year 1 month)

Led front-end architecture and delivered key modules (Credit Pre-Analysis, Territorial Intelligence), created an internal Vuetify-based Design System, and optimized platform usability.

Vue.Js Vuetify Vuex TypeScript SCSS Cypress Gitlab Design Systems SonarQube

Senior Front-End Developer

Aviso Urgente

Jan 2022 - Mar 2023 (1 year 2 months)

Built responsive interfaces and new modules, improved UX and SEO, integrated front-end with REST APIs, and resolved numerous production bugs to increase platform stability.

Vue.Js Vuex Vuetify JavaScript REST APIs Chart.Js Jenkins CSS Bootstrap

Front-End Developer

Materialize.pro

Jul 2021 - Jan 2023 (1 year 6 months)

Developed scalable Vuetify-based Design System components and complex financial calculation scripts for a fintech client, driving new client allocations through accurate investment functionality.

Vue.Js Vuex TypeScript Jest ApexCharts REST APIs Design Systems

Front-End Developer

Ticto Tecnologia

Jan 2021 - Nov 2021 (10 months)

Implemented responsive Vue.js and Laravel front-end features, improved checkout performance (reduced load by >5s), and developed high-use dashboard and members-area interfaces.