I work from institutional websites to operational CRMs, connecting front-end, back-end, integrations, and architectural decisions in live products.
Antônio Carlos Jr.
Tech Lead · Full-stack · Brasil
Why me
I don't just ship pretty screens. I take the entire product from mockup to real operations — with technical decisions, integrations, and impact clarity.
Hands-on experience with products already running pipelines, dashboards, landing pages, surveys, admin flows, and sensitive business modules.
Full-stack work across .NET and React/TypeScript codebases, including payments, WhatsApp, queues, admin configuration, and operational workflows.
Ability to take visually strong products, structure the experience better, and sustain delivery with clearer architecture underneath.
Featured work
Selected cases showing technical depth, product direction, and real-world delivery.
A financial product that connects directly to the client's ERP, reads receivables, and releases approved anticipation within 4 minutes — with transparent rates.
An evolving CRM handling leads, funnel, inbox, tasks, and executive visibility on a shared foundation serving more than one product front.
A product built around event discovery, ticket selling, batch control, and validator operations in real usage scenarios.
A digital presence project for an occupational-health clinic, with a clear commercial structure, service blocks, and direct WhatsApp CTA.
How I operate
Reusable foundations, architectural direction, and team acceleration without losing consistency.
Modular modeling, separation of concerns, integrations, and safe evolution for products in production.
Pragmatic delivery focused on business outcomes, operational reliability, and user experience.
Live stack
Domains
Funnel, leads, tasks, inbox, dashboards, and team workflows in operational products.
Purchases, batches, coupons, promoters, payments, and access control under high-usage scenarios.
Authority websites, acquisition landings, NR-1 configuration, surveys, and admin journeys.
Case library
The focus here is context, architectural decisions, role, and real impact.
Who's behind
Tech Lead and Software Developer based in Brazil. I work full stack across .NET, Next.js, and React, connecting engineering, product, and operations.
I'm wired for live products: pipeline running, integrations working, teams shipping. Where there's real complexity, I step in to unlock it.
My delivery blends product vision, technical direction, and full-stack execution to take software from mockup to real operations, with enough structure to scale without becoming chaos.
Produto vivo + arquitetura clara + execução sustentável.
Let's talk
Positioning, architecture, execution, and continuous evolution for products that need to work in production.
