Solid experience as a software engineer, focused on back-end and front-end development. Currently working as Senior Tech Leader at a global payroll company, leading a team of 6 people and participating in technical decisions and solution designs using System Design principles.Experience in critical banking systems, including 12 years working on card transaction authorization systems and 5 years on Bradesco's mobile app.Current experience with cloud-native technologies: AWS Lambda, CloudFront, Step Functions, Secret Manager, DynamoDB, S3, Java, TypeScript, and Gitlab CI/CD. Knowledge of React and Elixir/Phoenix.Experience in: Go (Golang), Java (Spring MVC/Boot), Javascript (React/NodeJS), Python, and Cobol (CICS).Skills: Multi-cloud (Azure, AWS, GCP), Containers (Docker/Kubernetes), Microservices, CI/CD, Jenkins, Git, Github, Gitlab, GraphQL, SQL (Oracle, MySQL, PostgreSQL), NoSQL (MongoDB), Redis, SOLID, REST APIs, Message Brokers (Kafka, RabbitMQ).Comprehensive knowledge of ISO-8583 standard for Visa, ELO, Mastercard, Amex, Tecban, and China Union Pay. Experience with issuer/acquirer authorization flows and EMV implementation in both authorization and embossing.Expert in developing stable and secure online applications. Experience in vulnerability remediation for critical applications, ensuring system and customer security.Education: - Postgraduate degree in GO Development at FCTECH (GraphQL, Kubernetes, Google Cloud) - Bachelor's degree in Big Data and Analytics. Expertise in Hadoop, HDFS, MapReduce, Hive, NoSQL, Spark, and Kafka - Bachelor's degree in Information Systems (UniFAE): software engineering, data structures, computer architecture, networking, web development, and IT managementAZ-900 (Azure Fundamentals) certified and preparing for AZ-104 (Azure Administrator). Committed to continuous learning.