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Software · AutomationST

Systems & automations

Web systems, WhatsApp bots and integrations that take manual work off your team.

Initial timeline

1–2 weeks

Format

100% remote

I run a multi-tenant B2B SaaS in production — payment integrations (Pix, Pagar.me, Asaas), WhatsApp automation (Baileys), invoice issuing and bots that read and write into the systems you already use.

Mature stack — Node.js/NestJS, PHP, .NET, PostgreSQL — with Docker deploys, monitoring and documented code. You keep the system, not a dependency on me.

Technologies

NestJS↗PostgreSQL↗Docker↗BABaileys↗

Creation time

Timelines count from the approved brief and materials in hand.

01Single automation1–2 weeks
02Full system1–2 months
03Platform / SaaS3–6 months

Examples

Baixar NFSe — published Chrome extension
Baixar NFSe — published Chrome extensionDigital-certificate auth, no captcha, 100% local.
Invoice table with filters and export
Invoice table with filters and exportIncremental sync, Excel and PDF export.

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Shall we build it?

Tell me the problem — I answer with scope, timeline and price.

[email protected]WhatsApp
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