RRafael
Hire Me
Rafael Soares Duarte

Rafael Soares Duarte

Open to full-time roles

Full-Stack Developer · AI & Automation

I build AI-powered products and automation that run in production.

View my workDownload CV (opens in a new tab)

01 · Work

Selected Work

Products and platforms I've built and shipped.

RF Nation: AI Customer Support & Operations Platform

An autonomous AI email agent with a multi-client dashboard. It reads customer messages, checks real order data and drafts replies in the customer's language. Anything with financial impact needs human approval. In production with 10+ clients.

  • Python
  • FastAPI
  • React
  • TypeScript
  • OpenAI
  • Claude Agent SDK
View platform ↗(opens in a new tab)

02 · My Capabilities

What I Can Do

I design and build AI-powered products end to end: autonomous agents, SaaS platforms and the integrations that connect them.

AI & integrations

  • OpenAI
  • Claude (Anthropic)
  • n8n
  • Stripe

Frontend

  • HTML5
  • CSS
  • JavaScript
  • TypeScript
  • React
  • Vue.js
  • Tailwind CSS

Backend

  • Python
  • FastAPI
  • C# / .NET

Data & infra

  • PostgreSQL
  • Docker
  • Git
01

AI & Automation

Autonomous agents that automate real operations while keeping humans in control. LLM integration, multimodal analysis, quality evaluation and cost monitoring, built to run in production, not just to demo.

  • LLM Integration
  • AI Agents
  • Human-in-the-loop
  • AI Evaluation
  • Multimodal Analysis
  • Voice AI
  • n8n
  • Cost Monitoring
02

Full-Stack Development

From database to deployment: web apps and APIs with Vue, React, .NET and Python, integrated with payments and third-party services, and shipped with Docker.

  • Vue 3
  • React
  • TypeScript
  • C# / .NET
  • Python / FastAPI
  • PostgreSQL
  • Stripe
  • Docker

Ways of working

  • AI-assisted development with review and testing
  • Remote-first
  • End-to-end ownership

03 · About

Problem Solver. AI & Automation Builder.

Rafael Soares Duarte

Rafael Soares Duarte

Projects
4+
Final grade
18.3 / 20
Status
Open to work

I'm a full-stack developer from Portugal who builds AI-powered products and automation that run in production. I work end to end, from the database and API to the interface and deployment, and I design automation that keeps people in control of the decisions that matter. I spent a year and a half working on a hospitality SaaS platform with a distributed team (Vue, .NET, PostgreSQL, Stripe), and I built my own AI agent platform, RF Nation, which automates customer support for 10+ real clients. I finished my technical IT course with an 18.3 average and a 20/20 final project. I'm open to the right full-time role, in Portugal or remote.

Want to know more? Get in touch.

Currently

  • BuildingMy AI support platform (RF Nation)
  • ExploringAI agent evaluation

04 · Journey

My Journey

From school projects to production software.

  1. Merit Diploma

    Awarded a merit diploma for excellent academic performance in the 2022/2023 school year.

    View certificate(opens in a new tab)
    Merit diploma for the 2022/2023 school year

  2. Erasmus+ Internship, Barcelona

    Full-stack developer · Pick and Pay App S.L.U. (now Guava)

    Completed a work placement in Barcelona under the Erasmus+ programme, working with a software team on a hospitality product. Graded 20/20.

    Certificate of participation(opens in a new tab)
    Erasmus+ certificate of participation for the Barcelona internship

  3. Final Project (PAP): GM HelpDesk

    Technical Course in IT – Systems

    Built a complete IT support platform for a school, solo: tickets, maintenance workflow, hardware inventory and email notifications. Graded 20/20.

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    01 / 06

  4. E-commerce & Dropshipping

    Own business

    Launched and run online stores end to end: suppliers, payments and customer support. Solving those stores' day-to-day problems is where RF Nation started.

    Illustration of a demo online store with orders, shipping and customer support

  5. Guava

    Full-Stack Developer (Freelance) · Remote

    Full-stack work (freelance) on a hospitality SaaS: onboarding, in-app tutorials, Stripe subscriptions, supplier module and integrations.

    “I recommend Rafael without reservation to any company looking for someone who learns fast and thinks about the business, not just the task in front of him.”
    — Alessandro Nati, CEO & Founder, Guava
    Recommendation letter(opens in a new tab)
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    01 / 10

  6. RF Nation

    Creator & Developer

    Built my own AI customer-support and operations platform, now in production with 10+ clients.

    Dashboard: what needs you today

    Dashboard: what needs you today

    01 / 10

05 · Contact

Let'sWorkTogether

Looking for the next product worth building.

I'm open to full-time roles in full-stack development, AI and automation, in Portugal or remote.

Download CV → (opens in a new tab)
01Emailrafaelsoaresduartee@gmail.com02GitHubgithub.com/rafaaduarte06(opens in a new tab)