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Wallace Ferreira

@wallaceferreira

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I build reliable React and TypeScript web products, from complex interfaces to production-ready B2B platforms.

Brazil

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What I'm looking for

I'm looking for Front-end Engineering opportunities on remote international teams building reliable, scalable, user-focused web products, where I can contribute React, Next.js, TypeScript, architecture, product thinking, and high-quality execution.

At Stefanini Brasil, I work as a Fullstack Software Engineer, building on a background delivering production web products across React, TypeScript, and front-end architecture.

At FDTE, I built an embeddable AI chatbot widget for Noteefy’s network of 800+ golf course clients and rebuilt a Shopify animation system into a state-driven React and Framer Motion implementation. I also used Shadow DOM isolation to make widgets more reliable across unpredictable storefront themes.

At WESF IT Services, I built a B2B e-commerce platform from greenfield to production, including retailer approval, customer-specific pricing, catalog and quote workflows for approximately 2,000 SKUs, and AWS deployment.

I enjoy solving complex UI state, API integration, accessibility, design system, and architecture challenges. I’m looking to contribute React, Next.js, TypeScript, product thinking, and high-quality execution to reliable, scalable, user-focused products.

Experience

Work history, roles, and key accomplishments

Current

Fullstack Software Engineer

Current

Stefanini Brasil

Sep 2026 - Present (0 months)

Worked as Fullstack Software Engineer at Stefanini Brasil.

Frontend Software Engineer

FDTE - Fundação para o Desenvolvimento Tecnológico da Engenharia

Oct 2024 - May 2026 (1 year 7 months)

• Architected and built an embeddable AI chatbot widget using React, Vite and TypeScript, delivered via script tag to run across client websites without depending on the host application stack.
• Integrated the AI assistant with backend services to support tee time availability, waitlist flows and FAQ interactions, contributing to a product used across Noteefy’s network of 800+ golf course clients

Fullstack Software Engineer

WESF IT Services

Sep 2023 - Apr 2024 (7 months)

• Built a full-stack B2B e-commerce platform from greenfield to production using React, TypeScript, Node.js, Express, PostgreSQL, Docker and AWS, covering both the public institutional website and the private retailer storefront.
• Designed and implemented a gated B2B access flow with email confirmation, manual retailer approval and authenticated catalog access, protecting negotiated pricing from

Frontend Software Engineer

Galaxies

Oct 2023 - Dec 2023 (2 months)

• Owned the full rewrite of a dynamic survey builder from v1 to v2 in three weeks using React, TypeScript, GraphQL and Material UI, delivering the new version to production within the agreed deadline.
• Preserved full backward compatibility with legacy survey schemas, allowing existing forms to keep loading correctly without requiring data migration or downstream renderer changes.
• Redesigned the

Frontend Software Engineer

FDTE - Fundação para o Desenvolvimento Tecnológico da Engenharia

Mar 2020 - May 2023 (3 years 2 months)

• Contributed to Fieldlink, a workflow-driven platform, by building dynamic custom forms with React, Formik and JSON schemas, enabling client-specific data collection flows generated and rendered at runtime.
• Rebuilt a form builder from v1 to v2, supporting nested fields, complex field types and real-time validation while preserving compatibility with the existing custom forms schema structure.
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