MARCIO FERREIRA®

Web developer & product builder

I turn ideas into digital experiences that explain, sell and work in everyday life.

I create websites, SaaS products and automations for businesses that want to sell better and operate with less repetitive work.

Focus
Websites, SaaS and automations
Scope
Strategy, design and development
Based
Brazil, working remotely

Selected work

Projects designed to be useful, clear and alive.

Four self-directed products, from concept to code.

01Product components
  • 01Agentic AI
  • 02RAG and knowledge
  • 03Scheduling and handoff
Agentic AI SaaS for healthcareNext.js · FastAPI

Sellvix

WhatsApp conversations, scheduling, clinical knowledge and CRM for clinics, operated by AI agents.

Next.js 15FastAPILangGraphSupabaseCelery
02Product components
  • 01Operational CRM
  • 02Billing and MFA
  • 03Admin and feature flags
Clinic management SaaSNext.js · Supabase

The Doctor Sales

Customer management, scheduling, treatments, finance, CRM and automations in one platform.

Next.jsSupabaseTanStack QueryCloudflareVitest
03Product components
  • 01Leads and automations
  • 02RLS and webhooks
  • 03Campaigns and recovery
Sales recovery SaaSNext.js · Supabase

Claryflow

Lead CRM, automations and checkout and WhatsApp integrations to recover abandoned sales.

Next.jsSupabaseCloudflareRemotion
04Product components
  • 01Public booking
  • 02Scheduling rules
  • 03Services and customers
Booking and management SaaSReact · Supabase

Nokta

Scheduling, online booking and customer and service management for independent professionals.

ReactViteSupabaseSchedule-XReact Query

Selected websites

Websites you can experience before opening.

Scroll to switch projects. Each selection opens a considered site preview.

01Website

Brand and digital presence

Azim

A digital experience made to present a brand with personality.

02Website

Institutional website

Michaell Douglas

A hair prosthesis atelier with an online presence as considered as its service.

03Website

SaaS product website

Claryflow

The storefront for a CRM that brings sales, automations and WhatsApp conversations together.

Website capture Azim

What I build

From the website that opens doors to the system that keeps the business moving.

(01)

Websites that position and convert

Landing pages, institutional websites and web experiences that communicate value with clarity.

(02)

Digital products and MVPs

Interfaces and applications to test, launch and evolve an idea without losing the business focus.

(03)

Automations that remove repetitive work

Custom systems that connect steps, reduce repetitive work and create room to scale.

How I work

Less noise between the idea and a version that can meet the world.

  1. 01

    Understand

    Goals, context and what needs to change.

  2. 02

    Structure

    Flows, interface and priority before writing code.

  3. 03

    Build

    Design and development working as one thing.

  4. 04

    Evolve

    Launch, learning and next steps based on real use.

About

Product, interface and development in the same line of thought.

I work where strategy, design and code meet. It enables more direct decisions and deliveries that work in the real world.

Based in Brazil, working remotely.

  • Web
  • Products
  • Automation
  • AI