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LEONARDO DO VALLE

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Detail

Mid-Level Front-End Developer | React · Vue · TypeScript | AI Agent-Assisted Engineering
State of Santa Catarina, Brazil
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Timeline

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Résumé

Jobs verified_user 0% verified
  • Hireup
    Founder & Full Stack Developer
    Hireup
    Mar 2025 - Jul 2026 (1 year 5 months)
    • Launched a complete production SaaS (app.hireup.online) from scratch, measured by the delivery of a lesson system, badges/certificates, quiz engine, and Stripe subscriptions, built entirely through an agentic engineering workflow with Claude Code on top of Vue 3 + TypeScript + Supabase.
    • Automated educational content curation, measured by the daily publication of a news feed (Guardian, NewsAPI, NYT) with no manual intervention, by orchestrating pg_cron jobs integrated with the OpenAI API.
  • 2
    Front-End Developer
    2Mundos Inc.
    Oct 2023 - Jul 2026 (2 years 10 months)
    • Took ownership of a high-traffic project (US, Canada, and Europe) with a legacy codebase and reduced recurring bugs by standardizing reusable React components and maintaining a consistent MVC architecture, reviewing Merge Requests via Git/GitLab.
    • Migrated an educational ERP module from legacy React to Vue 3, eliminating technical debt and recurring support tickets, which reduced development time for new features and bug fixes/maintenance.
    • Automated invoice issuance across 3 countries, eliminating manual processes, by developing Node.js back-end services integrated with the Yotti facial recognition API and payment processing.
    • Implemented back-end functions for recurring monthly billing and automated transactional email
  • A
    Front-End Developer
    Achei Pneus
    Jan 2023 - Oct 2023 (10 months)
    • Rescued a stalled ERP project (React, Redux Toolkit, styled-components), measured by shipping a delayed implementation to production in just 3 months, automating marketplace listings via API and inventory management.
    • Implemented automated tests and a CI/CD pipeline (GitHub Actions) for the project from scratch, previously nonexistent, raising delivery reliability.
  • R
    Front-End Developer
    Rtsys Informática
    Oct 2021 - Oct 2022 (1 year 1 month)
    • Displayed real-time tax and financial data for an ERP used by large companies (Gaslog Brasil), measured by production performance, by optimizing SQL queries and stored procedures in the Firebird database.
    • Led the refactor of the company's POS (Point of Sale) system, modernizing a legacy JavaScript codebase and applying KISS, SOLID, and Clean Code principles to the project for the first time.
Education verified_user 0% verified
  • S
    Technical Certificate in Application Development
    SENAI Paraná
    Jan 2022
  • Universidade Estácio de Sá
    Associate Degree in Systems Analysis and Development
    Universidade Estácio de Sá
    Jan 2020 - Jan 2023 (3 years 1 month)