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Gabriel Souza

@gabrielsouza2

Backend developer at liax Tech building Go microservices and asynchronous messaging for energy-sector calculation engines.

Brazil

Message

At liax Tech, I developed high-performance Go microservices for complex calculation engines in the energy sector. I also implemented asynchronous processing with AWS SQS to improve throughput and decouple services.

I modernized legacy systems by extracting and refactoring business logic from the TOTVS Protheus ecosystem into Go microservices.

At iez! Telecom, I designed a subscription and provisioning management system using Hexagonal Architecture and Go CronJobs for customer lifecycle automation. I also developed L7 network data processing with gRPC and Protobuf.

Earlier, as a Software Development Intern at TECSUS, I developed a UDP packet processing service with CRC-16 integrity validation and integrated its data pipeline with Amazon SQS. My projects include a Go pipeline with concurrent workers, automatic retries, and real-time status updates.

Experience

Work history, roles, and key accomplishments

Current

Mid-level Software Developer II

Current

liax Tech

Nov 2025 - Present (1 year)

Developed high-performance Go microservices with Fiber for complex calculation engines, ensuring low latency and high availability for critical energy sector operations. Implemented asynchronous messaging with AWS SQS and modernized legacy TOTVS Protheus systems into Go microservices.

Go Fiber AWS SQS Microservices TOTVS Protheus Async Messaging System Design

Backend Developer

iez! Telecom

Sep 2024 - Nov 2025 (1 year 2 months)

Designed and implemented a subscription and provisioning management system with Hexagonal Architecture and Go CronJobs for customer lifecycle automation. Developed a resilient ecosystem for L7 network data processing using gRPC and Protobuf, with Envoy proxy on GCP, and integrated Keycloak for authentication.

Go Hexagonal Architecture gRPC Protobuf Envoy GCP Rocky Linux PostgreSQL Keycloak Cron Job Event Driven Architecture

Software Development Intern

TECSUS

Nov 2022 - Mar 2024 (1 year 4 months)

Developed a high-performance service for receiving and processing UDP protocol packets with CRC-16 integrity validation and Factory pattern for multiple device protocol parsing. Integrated the data ingestion pipeline with Amazon SQS for decoupling and message persistence.

Go UDP CRC 16 Factory Pattern Amazon SQS Data Ingestion Telemetry