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Jonathas Germano de Oliveira

@jonathasgermanodeoli

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Frontend Engineer at Gofasti optimizing React data tables and evolving shared component libraries.

Brazil

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At Gofasti, I optimize React and TypeScript interfaces, including real-time tables rendering thousands of records. I also evolve shared Storybook component libraries and use Datadog and LaunchDarkly to support production monitoring and progressive rollouts.

At FCx Labs, I architected a micro-frontend integration for an e-commerce marketplace and centralized a company-wide design system. Earlier, I helped migrate legacy Java/JSP modules to React at Tata Consultancy Services and built internal tools during my internship at Justiça Federal da Paraiba.

Experience

Work history, roles, and key accomplishments

Current

Frontend Engineer

Current

Gofasti

Oct 2025 - Present (1 year 1 month)

Spearheaded optimization of large-scale UI components and real-time data tables using React and TypeScript. Maintained shared component libraries with Storybook and integrated Datadog and LaunchDarkly for observability and feature rollouts.

React TypeScript Storybook Tailwind Datadog LaunchDarkly

Frontend Engineer

FCx Labs

May 2024 - Oct 2025 (1 year 5 months)

Architected multi-application Micro Frontend integration using Module Federation, Next.js, TypeScript, and Turborepo. Built a company-wide Design System and led technical code reviews and mentoring.

Module Federation Next.js TypeScript TurboRepo Storybook Design Systems Code Review

Fullstack Engineer

Jalasoft

Jul 2022 - May 2024 (1 year 10 months)

Worked as a core front-end consultant with U.S. clients on EdTech and HRTech solutions using React, Redux, and Material UI. Spearheaded POCs with SonarQube for ISO 27001 compliance and improved unit test coverage from 62% to 83%.

React Redux Material UI REST APIs Storybook Webpack Rollup SonarQube Microservices

Associate Systems Engineer / Mobile Software Engineer

Tata Consultancy Services

Aug 2019 - Apr 2022 (2 years 8 months)

Delivered to international clients in the banking, financial and insurance sector. Contributed core UI components to banking Design Systems and migrated legacy Java/JSP modules to React component libraries.

React Java JSP Design Systems Agile Cross Functional Collaboration

Web Development Internship

Justiça Federal da Paraiba

Jun 2018 - Aug 2019 (1 year 2 months)

Developed internal operational tools using Spring Boot, Angular, SASS, and Figma prototypes in an agile SCRUM environment. Built internal administrative applications and monitoring dashboards.

Spring Boot Angular SASS Figma Scrum