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Wallace Ferreira — Frontend Engineer

Wallace Ferreira

Frontend Engineer | React & Next.js | TypeScript | Scalable Web Apps | Web Performance & Accessibility Specialist | International Collaborations

My professional values

  • Delivering high-quality software through clean architecture, thorough testing, and disciplined code review.

  • Shipping solutions quickly and iteratively while maintaining quality and architectural integrity.

  • Comfortable across the full stack — from domain modeling and APIs to UI, accessibility, and performance.

  • Clear communication with teammates and stakeholders to align expectations and deliver with confidence.

  • Frontend Software Engineer

    FDTE - Fundação para o Desenvolvimento Tecnológico da EngenhariaOct 2024 - Present (1a 8m)
    São Paulo, BrazilFull-timeHybrid

    Built and evolved frontend solutions for internal operations, AI-powered customer experiences, and Shopify-based commerce products. Owned the frontend implementation of an internal timesheet platform, contributing to architecture decisions, scalability, and product foundations for future ERP evolution. Developed an embeddable AI assistant widget for a golf revenue management platform serving over 800 golf courses, collaborating with an international team in a sprint-based delivery cycle. Worked across sprint and Kanban environments with a focus on performance, accessibility, security, and maintainable frontend architecture.

    • TypeScript
    • React

  • Frontend Software Engineer

    GalaxiesOct 2023 - Dec 2023 (2m)
    São Paulo, BrazilFull-timeOn-site

    Developed a game research and data intelligence platform focused on making insights more accessible and actionable. Rebuilt a back-office page from scratch to support dynamic question creation for synthetic research form workflows. Adapted the product for mobile devices, improving usability across different screen sizes. Enhanced the overall user experience through better interfaces and more intuitive user flows in a Kanban-based environment.

    • TypeScript
    • React

  • Fullstack Software Engineer

    WESF IT ServicesSep 2023 - Apr 2024 (7m)
    São Paulo, BrazilFull-timeOn-site

    Engineered a B2B e-commerce platform for construction materials, taking the product from planning to delivery. Built scalable frontend and backend solutions aligned with brand consistency and regional sales requirements. Designed and implemented RESTful APIs applying DDD and Clean Architecture principles. Owned the frontend development of a phone management and VoIP portal with ACL-based permissions. Improved usability and maintainability across key user journeys working in a Kanban-based delivery environment.

    • TypeScript
    • React

  • Frontend Software Engineer

    FDTE - Fundação para o Desenvolvimento Tecnológico da EngenhariaMar 2020 - May 2023 (3a 2m)
    São Paulo, BrazilFull-timeHybrid

    Contributed to complex web platforms involving custom forms, workflow management, and operational systems. Built frontend solutions for a public bidding evaluation platform with advanced forms, file uploads, and browser-based document handling. Architected the frontend foundation and design system for an e-commerce platform, improving structure, consistency, and maintainability. Strengthened engineering quality through CI/CD practices, end-to-end testing, and collaboration across sprint- and Kanban-based environments. Created a public open-source MQTT/WebSocket library and mentored junior developers to improve code quality and delivery consistency.

    • TypeScript
    • React
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