DV / Duarte Viveiros

Useful technology. Human purpose.

Duarte Viveiros is an independent creative technologist. I turn complex problems into useful software, automations and digital products.

This is the plain-text companion to my interactive portfolio. The same public facts are available to people, search engines and agents. Read Markdown · Agent index · JSON

What I build

APIs & Integrations

Connected tools and dependable data flows that make separate business systems work together.

  • Synchronising stock and orders across platforms
  • Connecting CRM, payment and accounting tools
  • Replacing manual data imports with reliable integrations

Tools: REST APIs, Webhooks, Node.js, TypeScript.

AI Agents

Intelligent workflows that connect AI models with real business tools, APIs and data.

  • Automated document processing
  • AI-powered business assistants
  • Multi-step operational workflows

Tools: LLMs, n8n, Node.js, APIs.

Dashboards & Insights

Clear operational views that turn scattered data into useful information and timely decisions.

  • Tracking sales, margins and operational KPIs
  • Spotting exceptions that need human attention
  • Bringing reports from multiple tools into one view

Tools: Vue, Nuxt, TypeScript, SQL.

Digital Products

Focused digital experiences built around a real problem, from the first useful prototype to a maintainable product.

  • Testing a new service with a working MVP
  • Building customer portals and self-service tools
  • Creating interactive learning experiences

Tools: Nuxt, Vue, TypeScript, Node.js.

E-commerce Systems

Practical tools that connect marketplace operations and make the detail behind online selling easier to manage.

  • Coordinating inventory and fulfilment workflows
  • Comparing product and sourcing information
  • Preparing marketplace transactions for reconciliation

Tools: Marketplace APIs, Webhooks, Node.js, SQL.

Workflow Automation

Repeatable workflows that remove busywork while keeping people in control of the decisions that matter.

  • Routing requests and approvals to the right people
  • Generating scheduled reports and notifications
  • Connecting repetitive back-office processes

Tools: n8n, APIs, Node.js, Scheduled jobs.

Selected projects

E-commerce operations

Connecting inventory, orders and marketplace workflows.

AI agent workflows

Practical agents working with real tools and APIs.

Kitty Quest

Interactive learning designed for curious young minds.

SourceLens

From scattered product data to clearer sourcing decisions.

Marketplace accounting

Simplifying the messy side of reconciliations.

Start a conversation

Email [email protected], or use the contact form on the portfolio. You can describe a problem before deciding on a technical solution.

Questions

Can I ask about a project?

Yes. Open a project card on the portfolio to start a project-specific chat. The assistant can discuss public project information; Duarte can follow up on the details.

Does choosing a meeting time book it?

The contact form records your preferred time. It is a request for confirmation, not an automatically confirmed calendar booking.

Is the chat Duarte?

No. It is an AI assistant. For a personal response, send an enquiry or email Duarte.