Custom software development in Cascavel and the region
Web systems, portals, APIs, multi-tenant platforms and integrations, built to run in production for years. For companies in Cascavel, Toledo, Foz do Iguaçu and across Brazil.
What I build
Management and operations systems, institutional and member portals, multi-tenant SaaS platforms, APIs and integrations with ERPs, banks, cooperatives and public bodies, member areas with authentication and permissions, real-time dashboards and internal tools that replace spreadsheets.
Each of these has a right way to be born. A union member area needs authentication and permissions before it needs a layout. A portal with thousands of pages needs SEO and caching in the architecture, not as a plugin. A bank integration needs idempotency, because the network will fail in the middle of a payment.
Stack and method
Next.js with the App Router, strict TypeScript, Node.js, PostgreSQL, edge delivery with Cloudflare and infrastructure on AWS or dedicated Linux. WordPress and PHP when they make sense for the client, with the same care for security and performance.
Method: written scope, weekly deliveries to a staging environment, automated tests where it matters (money, data, permissions), a deploy pipeline with rollback and monitoring from day one. Architecture and operations documentation is part of the delivery, not an extra.
Why build with someone who also audits
I spent years finding failures in systems other people built: the race condition in the payment, the permission that leaks data between customers, the backup that was never restored. Someone who audits builds differently, because they know exactly where systems break. Every system I deliver is born with the answers to the questions an auditor would ask.
Timeline and cost
A small system takes weeks; a platform takes months. What does not change is how I charge: fixed scope with a fixed price, or a period with defined dedication. No surprise at the end, because the scope was written at the start.
Frequently asked questions
Do you build systems for cooperatives and agribusiness?
Yes. Western Paraná is cooperative and agro-industry country, and many systems that pass through me integrate with that ecosystem: registries, weighing, invoices, member portals, traceability.
Do you build WordPress sites?
I do, when it is the right tool. Institutional sites, content portals and member areas in WordPress get the same security, performance and SEO treatment as any other system.
Does the company keep the code?
Always. Repository in the company name, documentation alongside, no dependency on me to operate. If you want me to maintain it, you hire maintenance; if not, the system is still yours.
Do you use AI in development?
I do, as an engineering tool, with human review on everything that reaches production. And I build AI features when the problem calls for it, always with evaluation and defined limits.
Let us talk
Describe the system, the problem and the deadline. I reply within one business day.
write to me contato@fgxdev.com