Open to opportunities

Gabriel Santos

@gabrielsantos5

Message

Construo sistemas backend escaláveis, agentes LLM e pipelines de dados confiáveis para produção.

Brazil

Message

What I'm looking for

Busco construir e evoluir sistemas backend e soluções de IA em produção, contribuindo com arquitetura escalável, confiabilidade, observabilidade e decisões técnicas de produto.

Na Attentus Data Dynamics, arquiteto sistemas backend, agentes LLM e pipelines de dados para aplicações de IA, com foco em escalabilidade, isolamento multi-tenant e confiabilidade em produção. Estruturei ingestão e indexação de dados legislativos e jurídicos e implementei observabilidade distribuída para serviços containerizados.

Antes, na Zerum ITS, evoluí APIs que sustentavam modelos de detecção de fraudes e aplicações para supervisão humana de inferências. Também construí plataformas de chatbot e atendimento omnichannel na Quickks ITS, trabalhando com cloud, mensageria, aplicações web e móveis.

Experience

Work history, roles, and key accomplishments

AI Software Engineer (Sênior)

Attentus Data Dynamics

Mar 2025 - Jul 2026 (1 year 4 months)

Architected and evolved backend systems and AI solutions, focusing on APIs, LLM agents, and data pipelines, ensuring scalability, multi-tenant isolation, and production reliability. Implemented AI agents using LangGraph and FastAPI, and designed data pipelines with Apache Airflow, NiFi, and MinIO for RAG-based applications.

LangGraph fastAPI OpenAI API Airflow Apache NiFi Minio PyDoll RAG OpenTelemetry Python

Desenvolvedor Full Stack Python (Pleno)

Zerum ITS

Jan 2023 - Mar 2025 (2 years 2 months)

Developed and evolved backend APIs supporting machine learning models for fraud detection using Django, DRF, FastAPI, PostgreSQL, Elasticsearch, and Docker. Built web applications for manual supervision of model inferences and implemented observability stack with OpenTelemetry, Prometheus, Grafana, Tempo, and Loki.

Django Django REST Framework fastAPI PostgreSQL Elasticsearch Docker Vue.Js OpenTelemetry Prometheus Grafana Tempo Loki RabbitMQ Mypy Ruff Black Pytest Playwright

Desenvolvedor Full Stack Java - (Júnior – Pleno)

Quickks ITS

Dec 2019 - Jan 2023 (3 years 1 month)

Developed chatbot and automation solutions using IBM Watson and IBM Cloud services for public sector clients. Implemented and maintained web and mobile applications supporting chatbots, including webchats, dashboards, and operational tools, using React, React Native, Spring Boot, Node.js, and Redis.

IBM Watson IBM Cloud React React Native Spring Boot Node Redis Cloud Foundry IAM Cloud Functions PostgreSQL Docker Ruby on Rails

Junior Full-Stack Developer

Totvs Brasil Central

Mar 2019 - Jun 2019 (3 months)

Worked with AdvPL to develop add-ons for the TOTVS Protheus ERP. Implemented software solutions using the Fluig platform, applying HTML, CSS, JavaScript, jQuery, and BPMN process modeling.

HTML CSS JavaScript jQuery BPM BPMN 20

Software Engineer Intern

Court of Justice of the Federal District and Territories

Sep 2016 - Sep 2018 (2 years)

Developed and maintained payroll support applications. Wrote database queries for the tribunal’s systems using Ember.js, jQuery, Spring, Node.js, Git, MySQL, Caché DB, PL/SQL, and Oracle APEX.