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:octocat:
Working in @visa
:octocat:
Working in @visa
146 followers · 20 following

Achievements

Achievement: Public SponsorAchievement: Pair Extraordinairex4Achievement: Starstruckx2Achievement: Pull Sharkx3Achievement: QuickdrawAchievement: YOLOAchievement: Galaxy BrainAchievement: Arctic Code Vault Contributor

Achievements

Achievement: Public SponsorAchievement: Pair Extraordinairex4Achievement: Starstruckx2Achievement: Pull Sharkx3Achievement: QuickdrawAchievement: YOLOAchievement: Galaxy BrainAchievement: Arctic Code Vault Contributor

Organizations

@backend-br @kotlin-br @tiny-blocks @opencodeco

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gustavofreze/README.md

Hi, I'm Gustavo 💻

I'm a Software Engineer with 8+ years of experience designing and maintaining scalable, event-driven systems in fintech and payment environments.

Throughout my career at Visa, PagSeguro International, and Gazin, I’ve specialized in microservices, data pipelines, and distributed architectures using PHP, Kotlin, Python, and Go.

My work focuses on improving system reliability, performance, and observability, resulting in measurable outcomes such as 60% faster report generation, 45% fewer production incidents, and 75% performance gains in critical services.

Passionate about clean architecture, DDD, and continuous improvement.

Tech stack 🛠️

Go PHP Kotlin Python

Poetry Gradle Quarkus Composer

Sentry Splunk Grafana New Relic

MySQL MongoDB PosterSQL Kafka Trino Databricks

Git Docker Terraform Jenkins Codefresh GitHub action

Find me 🔍

Medium LinkedIn DockerHub Packagist

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  1. financial financial Public

    POC de uma aplicação de domínio financeiro.

    Kotlin 76 3

  2. transactional-outbox transactional-outbox Public

    POC de uma aplicação de domínio de transação que implementa o Transactional outbox.

    Kotlin 6

  3. auto-assign auto-assign Public

    GitHub action that automatically assigns issues and pull requests to specified assignees.

    Python 13

  4. cryptocurrency-prices cryptocurrency-prices Public

    POC de uma AWS lambda que executa a consulta de preços de criptomoedas, e é implantada na AWS usando Github actions.

    Python 6

  5. kotlin4noobs kotlin4noobs Public

    Tutorial de Kotlin para iniciantes na linguagem.

    381 5

  6. account account Public

    Service responsible for managing account transactions.

    PHP 5