-Flander Abreu Email & Phone Number

As a backend developer specializing in Go, I am currently engaged in a dynamic ecommerce project for bus ticket sales, serving multiple bus companies. This project leverages a micro-services architecture, utilizing gRPC for inter-service communication and exposing a RESTful API for client interactions. Our infrastructure includes MySQL for database management and Redis for caching to ensure high performance and low latency. We utilize Docker Swarm for containerization and orchestration, enhancing scalability and deployment efficiency. My role has been pivotal in implementing software development best practices and optimizing system performance, significantly reducing response times and ensuring a robust, scalable platform.

Belo Horizonte, Minas Gerais, Brazil

Composed the platform team, developing and maintaining two systems. Known as CifraClubID and consumed by all company systems, it was an in-house SSO system capable of handling users' login, friendship, moderation and more. Written in go, a monolith based on clean-architecture, offering a GraphQL api for front-end. Infrastructure had MariaDB for database, Redis as backbone for asynchronous jobs and cronjobs processing, Memcached for cache, Google Cloud and Amazon clouds for some features like storage, error monitoring and more.Second service which we mainly developed was named SSPay, an in-house payment system capable of handling selling and processing of any product like guitars, subscriptions for our PaaS and more. It had two main apis, internally a gRPC server was used for integrating with other services and for front-end it offered a GraphQL api. For infracstruture it was similar to CCID, had MySQL for database, Memcached for cache, GCP for error handling, monitoring and messaging via pub/sub queues.

Contagem, Minas Gerais

Betim Area, Brazil

Company offered customer loyalty programs.Started as users support, but rapidly raised to integration team. Main responsibility was integrating our sales retrieval system by writing SQL queries in the client's sale system's DB or integrating with said system api. Our system was called Integrador, was made in C# and used Firebase for remote configuration.