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About

I build from the ground up — system to interface.

AI engineer and full-stack builder, now CTO at ImpulsoLead. My work sits at the intersection of LLM systems, full-stack engineering, and a strong bias toward shipping things that survive contact with reality.

Engineering Journey

2020

Started coding with a bias toward shipping

Moved quickly from fundamentals into real builds, learning by putting work under pressure instead of leaving it in tutorial mode.

2022

Freelance software developer

Solo-delivered websites, full-stack apps, and REST APIs for local businesses and research projects across TypeScript, Python, PHP, and C# — from requirements through deployment and maintenance.

2023

Computer programming at Universidade de Aveiro

Technical higher education (CTeSP) at ESTGA — systems & network programming, network security, algorithms, discrete mathematics, and databases.

2025

Joined ImpulsoLead as founding engineer

Architected a multi-tenant B2B SaaS for the Brazilian real-estate market end to end — Next.js App Router, tRPC, Prisma, and PostgreSQL.

Now

Promoted to CTO within six months

Owning architecture, AI strategy, and infrastructure — including a LangGraph + Claude agent orchestration layer spanning 11 task types, on an async BullMQ + Redis pipeline.

Operating Principles

Clarity, leverage, and choices that age well.

I care about product choices that can still look intelligent six months later.

The right solution is rarely the flashiest one. I start with where time, trust, or decision quality is actually being lost.

Stack & Tooling

The tools I reach for, grouped by where they earn their keep.

AI / ML

Anthropic Claude SDKLangGraphMulti-agent orchestrationRAGVoyage AI embeddingspgvectorMLOpsSHAPOptunaMLflow

Languages

TypeScriptPythonJavaC#PHPSQL

Backend

Node.jstRPCFastAPIPrismaasync SQLAlchemyRESTBullMQ

Frontend

Next.js (App Router)ReactTailwind CSS

Data & Infra

PostgreSQLRedisDockerNginx + PM2VercelClerkStripe

Education

Universidade de Aveiro — ESTGA

2023 — 2026

Technical Higher Education (CTeSP), Computer Programming · Águeda, Portugal

Coursework across systems & network programming, low-level systems, network security, algorithms, discrete mathematics, and databases.

Certifications

MLOpsDuke University
Generative AI for Growth MarketingIBM
Full-Stack DeveloperMicrosoft
Cybersecurity AnalystMicrosoft
SQLUniversity of Colorado Boulder
Essential Mathematics for CSUniversity of London
Open Science 101NASA

Built for signal

Strong products earn attention twice: once visually, then again through execution.

Start a conversation

Aveiro, Portugal

© 2026 Alex De Souza. Fullstack & AI Engineer.