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Luiz Amadeu
PT

About

A bit about me

I'm a full stack developer with 4+ years of experience in web systems, internal products, APIs and integrations, and a Software Engineering student at Univille, Brazil. I've been programming since I was a kid and went through an IT technical program at SENAI/SC during high school.

Today I work at JoinVix, in Joinville, building custom WHMCS modules, addons and plugins, integrations with external services and the company's internal system. On the side, I take on freelance clients.

Before that, I worked at Elint on Hermes CTRM, an enterprise platform for managing commodity trading operations, spent time at X-Team as a software engineer, and worked for two years at Aupi Soluções on Django and Next.js applications. My day-to-day stack is PHP, Python/Django, TypeScript, React/Next.js, PostgreSQL and MySQL.

I enjoy projects with real business rules: payments, integrations and process automation. Outside work, I maintain open source projects like MediaConv, write about what I learn and run Linux day to day.

Download résumé (PDF) LinkedIn GitHub
Luiz Felipe Warmling Amadeu

/Experience

  1. Jul 2026 — present

    Joinville, Brazil · On-site

    Software Developer · JoinVix

    • Custom WHMCS modules, addons and plugins tailored to business rules and internal workflows
    • Building and evolving the company's internal system: automation, management and operations support
    • Integrations between WHMCS, external APIs, internal services and third-party systems
    • Banking integrations, payment routines and billing automation
    • Corrective and evolutionary maintenance of production systems, with Linux, cPanel/WHM and Git
    • PHP
    • MySQL
    • JavaScript
    • WHMCS
    • REST APIs
    • Linux
    • cPanel/WHM

  2. Aug 2025 — Feb 2026

    Florianópolis, Brazil · Remote

    Full Stack Developer, Hermes CTRM · Elint

    • Development of Hermes CTRM, an enterprise platform for managing commercial operations and commodity processes
    • Features for contracts, orders, shipments, washouts and invoices
    • Business rules and invoicing flows with Not Invoiced, Partially Invoiced and Fully Invoiced states
    • Pricing, packaging, incoterms, costs, currencies, contract dates, allocation and installments
    • Interfaces, components and REST APIs integrated with the backend and relational database
    • Python
    • Django
    • DRF
    • React
    • Next.js
    • TypeScript
    • PostgreSQL

  3. Nov 2024 — Feb 2025

    Remote

    Software Engineer · X-Team

    • Go

  4. Nov 2024 — present

    Full Stack Developer · Freelancer

    • Websites, e-commerce stores, APIs and custom systems for clients such as Meu Planner Financeiro (Nov 2024 to Jan 2025)
    • Applications with React/Next.js, Python/Django and PHP, on PostgreSQL and MySQL
    • Integrations with Stripe, Pagar.me, Asaas, PIX, webhooks, authentication and external services
    • Deploys and maintenance with Docker, AWS, Nginx and Vercel, plus WordPress and WooCommerce projects
    • React
    • Next.js
    • Django
    • PHP
    • PostgreSQL
    • Docker
    • AWS

  5. Nov 2022 — Nov 2024

    Joinville, Brazil · On-site

    Full Stack Developer · Aupi Soluções

    • Development and maintenance of web applications with React, Next.js, Python and Django
    • APIs with Django REST Framework, integrating frontend, backend and relational databases
    • Internal tools for process optimization, including Aupi Tools
    • Integration with external APIs and services, and ongoing evolution of existing products
    • Python
    • Django
    • DRF
    • TypeScript
    • React
    • Next.js
    • PostgreSQL

/Education

  1. Mar 2024 — Nov 2028

    B.Sc. in Software Engineering

    Univille — Universidade da Região de Joinville

  2. Mar 2020 — Dec 2022

    IT Technical Program, integrated with High School

    SENAI/SC

/Skills

Backend

  • PHP
  • Python
  • Django
  • Django REST Framework
  • REST APIs
  • Go

Front-end

  • JavaScript
  • TypeScript
  • React
  • Next.js
  • HTML
  • CSS
  • Tailwind CSS

Data

  • PostgreSQL
  • MySQL
  • Redis

WHMCS & hosting

  • WHMCS
  • Addons
  • Plugins
  • cPanel
  • WHM

Integrations

  • OAuth2
  • Webhooks
  • Stripe
  • Pagar.me
  • Asaas
  • PIX

Infra & tooling

  • Docker
  • Docker Compose
  • Linux
  • Nginx
  • AWS EC2/S3
  • Vercel
  • Git
  • GitHub
  • GitLab

Areas of work

  • Full stack web development
  • REST API design and integration
  • WHMCS modules, addons and plugins
  • Payments: Stripe, Pagar.me, Asaas, PIX and banking integrations
  • E-commerce, including WordPress and WooCommerce
  • Business rules and relational data modeling
  • Deploys with Docker, AWS, Nginx and Vercel
  • Process automation and open source

/Languages

  • PortugueseNative
  • EnglishProfessional
  • FrenchBasic / Intermediate

/Courses & certifications

  • 2022Web Development BootcampUdemy
  • 2022Modern JavaScript BootcampUdemy
  • 2022Git & GitHub BootcampUdemy
  • 2022Domain-Driven DesignLinkedIn Learning
  • 2022OOP com TypeScriptLinkedIn Learning
  • 2021API RESTful com Node.js, TypeScript e TypeORMUdemy
  • 2021React e Next.jsUdemy
  • 2021JavaScript e TypeScript do básico ao avançadoUdemy
  • 20182º lugar — Olimpíada de Matemática de Paranavaí e regiãoIMPA

Contact

Got a project, a role or an idea?

I reply to emails within two business days. LinkedIn works too.

luizfelipewarmling@gmail.comLinkedIn