Michael S.

Built integrations to extract data from multiple sources and ingest into data catalog. Built services to provide metadata for analytics engineering team discover and understand Nubank data.

CWI Software is a technology outsourcing company, and Grupo Pão de Açúcar is a large-scale retail company in the food sector in Brazil.

• Led a team in developing a new version of the loyalty program workflow, from ideation to delivery. As a result, we were able to reach more customers in less time, increase customer engagement, boost sales, and raise the average transaction value.
• Microservices developed using Spring Boot.
• Deployed on AWS Cloud, utilizing Kubernetes with K8S and EKS clusters.
• REST APIs are written in Java, employing Webflux for reactive programming.
• Non-relational MongoDB database for efficient data management.
• Data streaming between services implemented using Kafka.
• Integration with other corporate services within the company.
• Led a team in building a data lake to feed a customer data platform. He analyzed data sources and planned the data ingestion into the data lake. As a result, they performed more efficient customer segmentation and activated customers in targeted marketing campaigns.
• Dataflow jobs for data processing and transformation.
• Serverless Cloud Functions APIs for triggering events.
• Data storage using BigQuery and Cloud Storage for efficient management.
• Data streaming with Kafka Connect for seamless integration between Kafka and Pub/Sub.
• Integration with other corporate databases and services within the company.

CWI Software is a technology outsourcing company, and Riachuelo is a large-scale retail company in the fashion sector in Brazil.

• Developed a system for generating fiscal and accounting reports and files for integration with the Brazilian public agency SEFAZ (State Finance Secretariat). As a result, the automated generation of integration files and reports improved the company's fiscal accuracy.
• Jobs for generating reports and files using Spring Batch.
• Data streaming using Kafka and Flink for real-time processing.
• Creating a system using Java EE and JSF with PrimeFaces for the user interface.
• Relational Oracle database for efficient data management.

UOL Diveo is an outsourcing company in Brazil.

• Developed updates for Notanet, a SaaS solution for issuing tax documents, such as electronic invoices, used by large-scale clients.

CWI Software is a technology outsourcing company, and Renner is a large-scale retail company in the fashion sector in Brazil.

• Developed updates for the corporate portal, an accounting closing system, to improve the company's accounting and fiscal accuracy.

Panazzolo Group was a logistics and transport company in Brazil.

• Developed updates for the company's ERP system, including the electronic invoice version, accounting reports and the driver payment system.