Open to new opportunities

I'm Rian, a full-stack software engineer.

Laravel & PHP

I work mostly on back-end: enterprise applications, APIs, integrations and automation. Most of what I've built runs inside a company, used by people every day. PHP, Laravel and Python are where I'm most comfortable.

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01 About me

How I got here.

I got into computers as a kid and taught myself to code. I kept at it until someone gave me a first job in the field, and I've been learning on the job ever since. I finished a degree in Systems Analysis and Development alongside work.

Today I work as a full-stack software engineer. Most of what I build is internal: a service portal, a queue system, a learning platform, an intranet and a pile of automation tools, used daily across different departments.

My focus is back-end. I like the parts that keep a system running: database modelling, queues and workers, scheduled jobs, real-time features over WebSockets, and talking to systems that would rather not be talked to.

Location: Santa Catarina, Brazil
Education: Systems Analysis and Development
Focus: Back-end, architecture & integrations
Languages: Portuguese (native) · English
Setup: Remote · Hybrid · On-site

Years coding: 4+
Systems in production: 5+
Integrations: 6+

02 Work

Projects marked enterprise were built internally for my employer and I can't share the code, so I generalised those descriptions. The personal projects are open source on GitHub. I'm happy to explain the architecture and technical decisions on a call.

01 Personal · open source

Relay: AI support triage engine

Here the LLM decides which action to take instead of just generating text. It can answer, search the knowledge base, ask for clarification, escalate to a human or block the input. Each action has its own rules: respond_kb only runs on high confidence, and too many clarifications trigger an automatic escalation.

Semantic search runs on pgvector, with a lexical fallback and ranking based on answers that already worked. I moved embedding generation out of the request into an async worker, which cut chat responses from 2 to 3 seconds down to about 800 ms. It has human review, Prometheus metrics and tracing.

Agent actions
respond
respond_kb
clarify
escalate_ticket
resolve
block

FastAPI
Python
PostgreSQL
pgvector
SQLAlchemy
React
TypeScript
Docker
Prometheus

Watch the demo Code on GitHub

React + TypeScript FastAPI AI Orchestrator

KB Search Ticketing Guardrails

PostgreSQL + pgvector Async worker · queue → embeddings → DB

02 Enterprise · internal

Corporate Service Portal

Platform that centralises service requests across multiple departments, replacing manual processes and fragmented email workflows. Dynamic forms, approval workflows, admin dashboards, PDF and Excel reporting, a knowledge base, push notifications, role-based permissions and a real-time monitoring dashboard.

Integrations
ERP (SOAP)
Google Workspace
Firebase FCM
Mattermost
Dell API
Zabbix

Laravel
PHP
Livewire
MySQL
Vite
Supervisor
Cron
DomPDF

Private code

Service portal dashboard on a monitor and a phone

03 Client · live

Medicina da Vida

Marketing site and blog for a homeopathy clinic. It has manageable content posts, appointment booking and direct WhatsApp contact. Fully responsive, from desktop to mobile.

Laravel
PHP
Blade
MySQL
JavaScript

Visit site

Medicina da Vida website on a tablet and a phone

04 Enterprise · real-time

Digital Queue Management

Complete customer service queue platform, synchronised in real time across every connected device.

Android kiosk application
Operator dashboard and TV display
Queue prioritisation and live metrics

Laravel
WebSockets
Android
MySQL

Private code

05 Enterprise · LMS

Corporate Learning Platform

A full Learning Management System, inspired by modern online education platforms, for internal employee training.

Courses, video lessons and progress tracking
Gamification, quizzes and certificates
Admin portal and user permissions

Laravel
Vue.js
MySQL
Vite

Private code

06 Enterprise · social

Corporate Social Intranet

Internal social network built to improve communication and collaboration between employees.

Social feed, comments and reactions
Internal announcements and profiles
Department groups and notifications

Laravel
PHP
MySQL
JavaScript

Private code

07 Enterprise · automation

Internal Automation Tools

A set of internal applications and automations that cut manual work and keep systems talking to each other.

API integrations and data synchronisation
Inventory management and report generation
Authentication services and background workers

Python
FastAPI
PHP
Laravel
REST APIs

Private code

08 Personal · open source

Outlandiu

A browser game with Laravel on the back end and Phaser 3 on the front. I built it to study game loops, collision and state handling. The code is open source on GitHub.