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Service

Custom web systems

When the operation outgrows a spreadsheet, it needs a system with a database, login and business rules validated at the start. I build it from scratch and deliver it running in production.

Talk about the projectE-commerce that holds up in real operations

What is included

What I build

Internal tool

The place where your team works: records, workflows, per-person permissions and a history of who changed what.

Client portal

A logged-in area to track orders, download documents and open requests without repeating the same question on WhatsApp.

Payments platform

Plans, subscriptions and recurring billing with idempotent webhooks and reports that match the statement.

System integrations

ERP, invoicing, CRM and store connected with retries, idempotency and raw event records.

How it works

From the first conversation to production

  1. Conversation and scope

    I first understand the process as it is. Then we write what is in, what is out and why.

  2. Build in usable parts

    Each part is available in an environment you can open on your phone while fixes are still cheap.

  3. Production and beyond

    Delivery means the system running with real data. I can maintain it or hand over code and documentation.

  • Next.js
  • React
  • TypeScript
  • Node.js
  • PostgreSQL
  • Prisma
  • Tailwind
  • Stripe
  • Cloudflare

Live work

Projects you can open right now

Conexões SUAS

View case study

Institutional website for a social-assistance management consultancy. Headless WordPress handles content editing and Astro serves the static frontend, so the team can update the site from WordPress without changing code.

Kaneh Bosem

View case study

Membership platform built with Next.js and PostgreSQL. It brings registrations, documents and access permissions together for the association's daily administration.

Magno Comércio

View case study

Collections and CRM system built with Next.js and PostgreSQL. It centralizes statement imports, payment follow-up and customer history in one interface for the team.

Outside the portfolio, the public track record: 51 reviews averaging 4.86 on 99Freelas.

Questions

What people ask before getting started

How much does a custom system cost?

It depends on scope. Third-party integrations, access profiles, audit requirements and maintenance affect the result; I only quote after understanding the process.

How long does it take?

The schedule depends on the process, integrations and acceptance criteria. I define the first usable delivery after understanding that scope.

Can you integrate with the system I already use?

If it has an API, webhook or export, usually yes. If it has none of those, I will say so in the first conversation.

Do I own the code?

Yes. The repository is yours and the delivery includes how to deploy and maintain it.

Reading

Written about this

Next step

Tell me which process is stuck in a spreadsheet today and how many people touch it.

Talk on WhatsAppor send the form