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André Augusto Zaguette Fernandes

@andraugustozaguettef

Message

I build distributed, event-driven fintech and real-time monitoring platforms on AWS.

Brazil

Message

I've built distributed, event-driven systems for regulated lending, asset management, and real-time maritime monitoring. At Altave, I architect Python services that synchronize offshore vessel operations with AWS and process AI-generated worker-safety alerts.

As Ulend's founding engineer, I scaled lending throughput 10x, grew engineering from 2 to 8+ developers, and owned architecture, AWS infrastructure, CI/CD, and delivery for a regulated platform serving 500+ active investors.

Experience

Work history, roles, and key accomplishments

Current

Senior Full Stack Developer

Current

Altave

Jul 2025 - Present (1 year 2 months)

Architected Python services for maritime operations and built real-time pipelines for AI-generated safety alerts. Delivered live video streaming and Vue.js dashboards for fleet monitoring.

Python fastAPI Django RabbitMQ PostgreSQL AWS Vue.Js Real Time Data Pipelines

Senior Full Stack Developer

Sinqia

Oct 2023 - Jul 2025 (1 year 9 months)

Built fund reporting and portfolio performance features for an asset management platform. Re-architected report generation into asynchronous AWS Lambda workflows and worked on legacy migrations.

React NodeJS PostgreSQL MongoDB AWS Lambda Angular .NET Java SQL Server

Tech Lead

Visie

Aug 2023 - Oct 2023 (2 months)

Led a 2-engineer frontend team localizing a US product for the Brazilian market with React and Next.js, coordinating with the US-based backend team.

React Next.js Team Leadership Localization

Tech Lead / Full Stack Developer

Ulend

Mar 2019 - Jun 2023 (4 years 3 months)

Scaled marketplace throughput 10x and grew the engineering team from 2 to 8+ developers as founding engineer. Owned AWS infrastructure and CI/CD, and led major migrations with zero disruption.

Python Vue.Js React AWS CI CD System Design Event Driven Architecture PostgreSQL

Frontend Developer

AATAG Tecnologias

Apr 2017 - Feb 2019 (1 year 10 months)

Developed frontend solutions using modern web technologies.

Full Stack Developer

Agência Wys

Apr 2017 - Feb 2019 (1 year 10 months)

Developed web applications using Laravel, AngularJS, WordPress, and .NET/SQL Server, with infrastructure on AWS, Google Cloud, and on-premise servers.

Laravel PHP AngularJS WordPress .NET SQL Server AWS Google Cloud Platform