Alysson Thoaldo
PTEN
Alysson Thoaldo

Let’s talk

contato@alysson-thoaldo.com.brWhatsApp +55 41 99893-9670
PTEN

Full-stack developer · Custom software from BrazilSoftware that solves the problem, not just the screen.

I’m Alysson Thoaldo, a senior web developer in Curitiba, Brazil. I design and build systems end to end with a back-end focus: booking, integrations, APIs and the libraries I write along the way.

See projects Let’s talk

Main projects

Each one started with a concrete problem. The case studies show what was decided and why.

01 Online booking and management · 2026

Nails by Ivyy

Booking website and management panel for a nail studio in Curitiba, synced with Google Calendar and Instagram.

  • Laravel 13
  • Filament 5
  • Livewire
  • MySQL
  • Google Calendar API
Read the case study Visit

02 Work hours and time balance tracking · 2026

Kairo

Open-source, self-hosted time tracking: log shifts and breaks and keep an eye on overtime, missing hours and your running balance.

  • Laravel 13
  • Inertia
  • Vue 3
  • TypeScript
  • Tailwind
Read the case study Visit

04 Crawler and sitemap generator · 2026

PHP Crawler

A PHP crawler that walks a site concurrently and writes production-ready XML sitemaps, honoring canonical, noindex and nofollow.

  • PHP 8.4
  • cURL multi
  • DOM
  • XMLWriter
Read the case study Visit

Other projects

Explorations that taught me something.

  • CalliOpen Backend

    REST API for an open-source music platform: collaborative playlists, albums, artists, favorites and audio uploads, documented with OpenAPI.

    • Laravel 12
    • Sanctum
    • Filament
    • OpenAPI
    • Docker
    REST API · 2025

  • CalliOpen Frontend

    A React music player that also ships as a Tauri desktop app, with a typed API client generated from the back end’s OpenAPI spec.

    • React 19
    • TypeScript
    • TanStack Query
    • Tauri
    Web and desktop app · 2025

  • Crystal Color

    A 2D Unity game built as a university team project: a memory puzzle with crystal sequences, NPC dialogue, cutscenes and a save system.

    • Unity
    • C#
    2D game · 2025

All projects

Open source

Packages on Packagist.

Code that grew inside my projects and became a package so it never has to be rewritten.

  • tonsoo/php-qr-code

    Styled QR code generation in PHP, with shapes, a logo and SVG or image output.

    composer require tonsoo/php-qr-code Packagist

  • tonsoo/php-crawler

    Concurrent crawler that writes XML sitemaps with file rotation and canonical support.

    composer require tonsoo/php-crawler Packagist

  • tonsoo/filament-translatable

    Translatable fields for Filament, including paths inside JSON columns such as repeater items.

    composer require tonsoo/filament-translatable Packagist

  • l1nnah/file-size

    Turns bytes into readable sizes with custom separators, and parses them back.

    composer require l1nnah/file-size Packagist

About

Writing code since I was 11.

I started programming at 11 and went through C, C++, C#, Java, Rust, Python and Lua before PHP and Laravel became my everyday tools.

Since 2023 I have been building websites, online stores, admin panels and systems for clients, including time on an international team. In my spare time I maintain my own products and open-source libraries.

See full career

Now
Senior web developer at Tuxon
Based in
Curitiba, Brazil
Languages
Portuguese, English C1, German B1 and Spanish A2
Open source
4 packages on Packagist

How I work

Less code, better judgment.

  1. Understand before building

    I start with the process of the people who will use it. Screens come after knowing what has to happen.

  2. Simple that lasts

    I’d rather ship something another developer understands a year from now than an architecture that impresses today.

  3. Integrations that don’t break

    Calendars, payments and messaging fail. I plan retries, limits and logs from day one.

  4. Ship and maintain

    Automated deploys, tests where it matters and enough documentation for the project to move on without me.

Proposals

Ideas that were ready before going live.

Websites designed and built as proposals for local businesses.

  • ProposalIllustration of the Kolosso Café storefront with the shop’s name

    Coffee shop website · 2026

    Kolosso Café

    Website proposal for an artisan coffee shop in Curitiba: full menu, live opening hours, map and iFood ordering, carrying the identity of the printed menu.

    • Next.js 16
    • React 19
    • CSS
    • Google Maps
  • ProposalDisk Pizza logo and a pizza on a chalkboard

    Pizzeria website · 2026

    Disk Pizza

    Website proposal for a neighborhood pizzeria in Curitiba, with a menu of over 70 flavors, promotions, job openings and a delivery area map.

    • Next.js 16
    • React 19
    • Leaflet
    • CSS

Proposals

FAQ

Before starting a project.

What is custom software?

It is a system built around how your business works, instead of bending the business to fit an off-the-shelf tool. It can be a booking system, an admin panel, an integration between systems or a SaaS product.

What kind of projects do you build?

Laravel web systems and SaaS products, APIs and integrations with Google, WhatsApp, Instagram and payment providers, Filament admin panels, Next.js websites and Flutter apps.

Do you work with companies outside Brazil?

Yes. I work remotely with online meetings and have worked on an international team. I work in English and Portuguese.

Do you maintain existing systems?

Yes. Maintaining and evolving Laravel applications, websites and Flutter apps in production is part of my daily work, including refactoring legacy code.

How does a project start?

With a conversation about the problem and the people who will use the system. From there I define scope, timeline and the simplest solution that actually works. You can reach me through the form, email or WhatsApp.

Contact

Have a project in mind?

Tell me what you need. I reply within two business days.

contato@alysson-thoaldo.com.brOpen the form