Experience

Feb 2026Jun 2026
ohubdev
Software Engineer
Balneário Camboriú, Brazil
  • Owned the core product as its sole developer, with responsibility for architecture, data security, delivery quality, and production reliability
  • Built the platform GraphQL layer on ASP.NET Core with Hot Chocolate, reducing nested audit-data loading from five REST round trips to one request
  • Architected Azure Active Directory authentication flows in .NET/C#, including multiple-email support and strict access control
  • Redesigned time-record calculation and display rules to eliminate audit-data mismatches down to millisecond precision
  • Introduced architecture standards, code-review practices for AI-generated changes, CI/CD validation, and resolved recurring Docker/Coolify and Azure DevOps failures
.NETC#ASP.NET CoreHot ChocolateGraphQLAzure DevOpsDockerCoolify
Jul 2025Feb 2026
H2K
Mobile Developer (Contract)
Brusque, Brazil
  • Architected and delivered 3+ production React Native/Expo applications for an enterprise SaaS platform serving 10,000+ active users, including a shared TypeScript component library
  • Migrated the mobile data layer from REST to GraphQL with Apollo Client, reducing over-fetching and enabling normalized offline caching
  • Published and maintained iOS/Android releases and implemented Firebase push notifications
  • Automated releases with GitHub Actions/EAS Build and modernized legacy code to Hooks
  • Mentored two junior developers
React NativeExpoTypeScriptGraphQLApollo ClientFirebaseGitHub ActionsEAS Build
Feb 2025Jan 2026
Beeasy Digital
Frontend Developer (Contract)
São Paulo, Brazil
  • Planned and executed the migration of the main dashboard from Vue 2.6 to Vue 3.5 while preserving production continuity for 500+ active businesses
  • Replaced scattered REST calls with typed GraphQL/Apollo queries and generated TypeScript types from the schema
  • Improved heavy dashboard rendering with Web Workers and reusable Vue 3 Composition API components
Vue.jsVue 3TypeScriptGraphQLApollo ClientWeb Workers
Aug 2023Apr 2025
株式会社DJIN Tech Solutions
Software Developer
Remote · International (APAC)
  • Contributed to a SaaS platform serving 1,000+ enterprise clients across the APAC region in collaboration with an international engineering team
  • Built real-time Vue/Nuxt interfaces for datasets above 100,000 records and optimized spreadsheet rendering for 50,000+ rows using Web Workers and HTML Canvas
  • Developed the platform companion React Native app and extended GraphQL APIs consumed by both web and mobile clients
  • Contributed to C#/.NET reporting services, including endpoint work and query-performance improvements over large datasets
Vue.jsNuxt.jsReact NativeGraphQLC#.NETWeb WorkersHTML Canvas
Feb 2022Aug 2023
Bravuserp Sistemas
IT Support Technician & Test Analyst
Balneário Camboriú, Brazil
  • Supported ERP/POS software used by 200+ businesses and documented 150+ reproducible bugs through structured QA testing
  • Built C#/.NET utilities and SQL scripts to automate recurring ERP data fixes and migrations
C#.NETSQLQAERP/POS
Jan 2019Feb 2022
Freelance
Freelance Software Developer · Self-employed
Remote · Brazil
  • Built and shipped mobile and web products for local businesses and early-stage startups, from architecture and API integration through production release
  • Published five React Native applications to the App Store and Google Play and integrated payment, messaging, and logistics APIs including Stripe, Pagar.me, WhatsApp Business, and Correios
React NativeTypeScriptNode.jsStripePagar.meWhatsApp BusinessCorreios