Desenvolvedor Full Stack & Mobile

Olá, eu sou Gregory

Crio aplicações web e mobile de alto desempenho, potencializando meu fluxo de trabalho com ferramentas de Inteligência Artificial para entregar mais rápido e com mais qualidade.

Upwork
Gregory Oviedo, frontend developer
05+Anos de experiência

Sobre mim

Minha introdução
Gregory Oviedo's workspace

Sou desenvolvedor Full Stack com mais de 5 anos de experiência construindo aplicações web e mobile do início ao fim. Domino tanto o frontend quanto o backend, e também desenvolvo apps móveis multiplataforma. Integrei ferramentas de Inteligência Artificial ao meu fluxo de trabalho, o que me permite desenvolver mais rápido, automatizar tarefas repetitivas e entregar soluções de maior qualidade. Destaco-me pela responsabilidade, pontualidade, eficiência na resolução de problemas e boas práticas, adaptando-me com facilidade a diferentes projetos e ambientes.

05+
Anos de experiência
10+
Projetos concluídos
03+
Empresas onde trabalhei
Baixar CV

Habilidades

Meu nível técnico
Frontend
  • HtmlHtml
  • CssCss
  • JavaScriptJavaScript
  • TypeScriptTypeScript
  • ReactReact
  • Next.jsNext.js
  • AstroAstro
Mobile
  • React NativeReact Native
  • ExpoExpo
UI / Styling
  • TailwindTailwind
  • Chakra UIChakra UI
  • SassSass
Backend / API
  • NodeNode
  • ExpressExpress
  • NestJSNestJS
  • GolangGolang
  • PythonPython
  • PhpPhp
Databases
  • MySqlMySql
  • PostgreSQLPostgreSQL
  • MongoDBMongoDB
Testing
  • CypressCypress
  • VitestVitest
Infrastructure
  • DockerDocker
  • FirebaseFirebase
  • SupabaseSupabase
  • VercelVercel
  • RailwayRailway
  • GitGit
  • GitHub ActionsGitHub Actions
  • BashBash
AI Tools
  • Claude CodeClaude Code
  • OpenCodeOpenCode

Qualificação

Minha trajetória pessoal
  1. Desenvolvedor Frontend (júnior)

    Kunaifost
    2021 - 2022
  2. Desenvolvedor FullStack (pleno)

    Jam Tech
    2022 - 2025
  3. Desenvolvedor Frontend (sênior)

    iNuba
    2026 - 2026

Serviços

O que eu ofereço

Desenvolvedor Frontend

Desenvolvedor Backend

Desenvolvedor Mobile

FAQ

Quick answers about my services, stack and process

What services do you offer as a developer?

I offer three core services: Frontend Development (modern, fast, accessible web interfaces built with React, Next.js, Astro, and Tailwind CSS), Backend Development (REST and GraphQL APIs with Node.js, NestJS, and Go, plus database modeling and secure authentication), and Mobile Development (cross-platform iOS and Android apps with React Native and Expo, including App Store / Google Play deployment and OTA updates).

What is your main technology stack?

My main stack covers React, Next.js, Astro and TypeScript on the frontend; Node.js, NestJS, Express and Go on the backend; PostgreSQL, MongoDB and Supabase for data; React Native and Expo for mobile; plus Docker, GitHub Actions, Vercel and Railway for cloud and DevOps. I also integrate AI tools like Claude Code and the OpenAI API into the development workflow to ship faster and with higher quality.

Do you develop native or cross-platform mobile apps?

I build cross-platform mobile applications with React Native and Expo, which means a single codebase ships to both iOS and Android with a near-native feel. When a project requires it, I also write native modules in Kotlin for Android. I handle the full lifecycle: UI, business logic, push notifications, offline-first sync, store deployment, and over-the-air updates with Expo EAS.

How does your development process work?

I start with a short discovery call to align scope, success metrics and constraints. Then I move to a technical design, break the work into milestones and ship in short iterations with weekly demos. Communication happens in your preferred channel (Slack, email or calls), and every milestone ends with code you can review, test and deploy.

How do you use AI in your workflow?

I integrate AI assistants like Claude Code and OpenCode directly into the development loop: generating boilerplate, writing and refactoring tests, accelerating documentation, and reviewing code for accessibility and performance issues. I also build AI features into products when it makes sense — for example, integrating the OpenAI API for smart assistants, automated content or biometric analysis.

How do you structure your rates and availability?

I work on a fixed-price or hourly basis depending on the project. Short scopes and audits are usually fixed-price; ongoing product work is typically hourly or monthly. I am currently open to freelance and contract work and respond to every inquiry within 24 hours — write to gregoryoviedo.dev@gmail.com or send a message through the contact form.

Portfólio

Trabalhos mais recentes

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