Open to opportunities

Juliana Sato

@julianasato

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Senior full-stack engineer building scalable web and e-commerce platforms.

Brazil

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What I'm looking for

I’m looking for opportunities to build and optimize scalable web and e-commerce products, improve performance and accessibility, and deliver reliable full-stack features in collaborative, distributed teams.

I’m a Senior Full Stack Engineer with 7+ years of experience building scalable web applications, e-commerce platforms, and content management solutions. I focus on clean, maintainable code while delivering reliable software for real business needs.

In recent work at BairesDev, I developed and delivered scalable eCommerce and content platform features using React, Next.js, TypeScript, and Node.js. I integrated GraphQL and REST APIs with third-party services, improving operations by reducing manual tasks by ~20%, and I enhanced Core Web Vitals to reduce average page load time by ~15%.

At Storyblok, I built reusable React and Next.js components for headless CMS projects, cutting feature development time for new pages by ~25%. I also developed multilingual, SEO-friendly sites with strong accessibility (WCAG) practices, supporting improved Lighthouse performance and shipping production releases with 99.9% service availability.

Experience

Work history, roles, and key accomplishments

Senior Full Stack Engineer

BairesDev

Jan 2025 - Jun 2026 (1 year 5 months)

Developed and delivered scalable eCommerce and content platform features using React, Next.js, TypeScript, and Node.js. Integrated GraphQL and REST APIs with third-party services, and improved Core Web Vitals and frontend performance to reduce page load time.

React Next.js TypeScript Node GraphQL REST APIs Ecommerce Performance Optimization Web Performance

Full Stack Developer

Storyblok

Apr 2022 - Dec 2024 (2 years 8 months)

Built reusable React and Next.js components for headless CMS projects and delivered multilingual, SEO-friendly websites focused on accessibility. Integrated third-party APIs and analytics platforms and collaborated with designers and backend engineers to release production systems with high availability.

React Next.js Headless CMS SEO Accessibility Lighthouse Performance Analytics Platforms API Integration Production Releases

Full Stack Developer

Interativa Digital Tecnologia Ltda.

Aug 2019 - Mar 2022 (2 years 7 months)

Developed internal ERP and CRM modules and automated repetitive business workflows to save manual effort. Optimized SQL queries and backend logic to reduce report generation time and created dashboards and reporting tools to improve data visibility.