Heron Ximenes

Software Developer

• E-mail: herongogo@proton.me
• Phone: +5588998606125
• Location: Brazil (Ceará)

About Me

I was born in Brazil in 2002 (I’m 24 years old in 2026). Since I was a kid I loved playing games at video rental stores, and at 14 I started programming small games in Java on my laptop with an incredible 2GB of RAM ‘:). I keep those moments close to my heart. Following that path, I fell in love with technology, and today I work as a software developer, building Web Backend systems. I really enjoy learning new things and meeting new people.

I love the human side behind technology.

Last Jobs

Somax, Brazil

Backend developer · 2025–2026

Designed, built, and optimized scalable CDC/ETL pipelines and integration platforms as a unified data layer across multiple ERP systems.

• Engineered backend services in Go to process, transform, and synchronize data across ERP platforms.
• Designed unified abstraction layers on top of multiple ERPs, standardizing business rules and reducing integration complexity.
• Built event-driven microservices with RabbitMQ for reliable, scalable inter-service communication.
• Developed cron-based automation for continuous data monitoring, validation, and analytical processing.
• Optimized data workflows and integration processes for better performance, reliability, and maintainability.
• Improved database performance via query optimization and schema design (PostgreSQL).
• Contributed to architectural decisions for scalability, extensibility, and long-term sustainability.

CarltonOne, Canada

Backend developer · 2024–2025

Maintenance and development of microservices using NestJS and TypeScript in a distributed systems environment.

• Developed and maintained microservices using NestJS and TypeScript.
• Used Go for heavy tasks that needed native speed.
• Used Kafka to integrate services across the microservices ecosystem.
• Built and supported message-driven services for asynchronous communication between distributed components.
• Diagnosed and resolved bugs in existing NestJS-based systems, improving stability and reliability.
• Designed and implemented applications with caching layers to enhance performance and reduce load.
• Integrated caching to improve response times and overall system efficiency.
• Contributed to scalable backend architectures focused on maintainability and performance.

Online Telecom ISP, Brazil (Now ZaaZ Telecom Norte/Nordeste)

Fullstack developer · 2024, then contractor · late 2025

Worked here in 2024, then returned as a contractor at the end of 2025 to help with another major migration. The company was acquired by the Werthein Group in between, but the code I built is still running in production :)

• Migrated APIs from NestJS (TypeScript) to Go, improving performance, scalability, and maintainability.
• Designed and built new backend systems from scratch in Go to support platform growth and increased user demand.
• Coordinated the full migration process to Go and AWS, contributing to architectural decisions and deployment strategies.
• Maintained and improved the React Native mobile application, ensuring stability and performance.
• Optimized critical application flows, reducing load times from approximately 1 minute to as low as 2 seconds in key scenarios.
• Developed internal tools to improve team productivity and operational efficiency.
• Designed and modeled PostgreSQL and Redis databases to support new features and ensure high-performance data access.
• Returned as a contractor in late 2025, after the company’s acquisition by the Werthein Group, to support another major migration effort.

One Panel Cloud, Brazil

Fullstack Developer · 2023

Contributed to the development of One Panel Cloud, a cloud VPS provisioning platform, working across infrastructure management and new feature development.

• Supported the platform through its early development and creation process.
• Built backend services in Go and TypeScript clients for the platform.
• Managed third-party virtual machines and infrastructure.
• Configured pre-built virtualized operating system images for deployment.
• Developed the new machine creation feature as part of the platform.
• Developed the auto-installation feature using Ansible.
• Worked on application deployment using Docker containers.

Open Source Contributions

Vanilla OS (Linux Distro)
I’m part of the core team of developers, working on system tools.

Bun (Javascript Runtime)
I wrote the install documentation for contributing with Bun using openSUSE-based distros.

Tech Stack

• Languages: Go (Golang), Javascript, Typescript, C, SQL
• Web: React, REST API, gRPC
• Systems: Linux, Unix
• Tools: Git, Docker, OCI Containers
• Cloud & Messaging: AWS, Kafka, RabbitMQ
• SQL: PostgreSQL, MySQL, SQLite
• NoSQL: MongoDB, Redis

Most of the software I build today is written in Go.