Joao G.Back-end and Systems Engineer
Skills
Developer with over four years of experience specializing in highly scalable applications supporting millions of simultaneous instances. Demonstrates expertise in Functional Programming, Object-Oriented Programming (OOP), Event-Driven Architectures, and Cron Jobs. Proficient in utilizing tools and technologies including Github, Python, Flask, Docker, and a range of AWS services such as Lambda, DynamoDB, S3, SQS, SNS, EC2, EventBridge, and API Gateway. Possesses substantial knowledge of PostgreSQL and MySQL database systems.
Software Engineer I
11/1/2019 - 10/1/2022
Contributed to the development of a Cashback software for online purchases, delivering critical features that enhanced user experience. Engineered a migration of message queues from Amazon SQS to Apache Kafka, achieving significant cost savings and improving system efficiency. Developed proficiency in message queue management, with substantial experience in leveraging Kafka's capabilities for real-time data processing and scalability.Software Engineer II
6/1/2023 - Present
Developed a desktop system for the Settlement team to manage financial events, metrics, and provisions, as well as to read files from B3 and Selic. Architected the team's entire infrastructure on AWS to ensure scalability and robustness. Created graphical user interfaces featuring dashboards, listings, and other functions using Python, C#, and Windows Forms.Software Engineer II
9/1/2022 - 6/1/2023
Implemented a new billing system leveraging Event-Driven architecture and microservices, significantly reducing processing time from hours to minutes. Utilized Cron jobs, SQS, and Lambda to enhance system efficiency. Maintained a legacy system overseeing the complete workflow from material collection to report availability. Provided upkeep for a customer portal using PHP and performed API updates in NodeJS.
Information Technology at Santo Amaro University - Unisa
2019 - 2021
CAE at Cambridge Assessment English
12/1/2013
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