Nelson Goncalves

• Worked on the development of our GraphQL API which is implemented on top of a micro-service architecture.
• Added distributed tracing support in several micro-services to track and troubleshoot high latency requests/bottlenecks, significantly reducing the time it takes for the team to investigate a production issue.
• Implemented a gains and losses feature to efficiently support over 1TB of data, requiring mathematical proofing, implementation and deployment. The data is calculated in a budget of 50ms and rendered on the main screen of our apps.
• Implemented a new service to ingest ~2M rows per hour of ticker data and output historical balances and prices for several currencies over several time frames. This is a core service as it returns the data for the graphs rendered in the main screen of our apps. By leveraging TimescaleDB's features we were able to double the number of points of each graph (versus the previous implementation) while cutting response times by almost 50% and reducing infrastructure costs.

• Implemented several of the cluster commands and the sandbox feature for MySQL AdminAPI. Successfully abstracted way much of the complexity that comes with creating, configuring and managing Group Replication and semi-synchronous replication scenarios built with MySQL.
• Implemented several of the utilities in MySQL Utilities, a set of tools, written in Python, used for maintenance and administration of MySQL servers and targeted at DBAs and Devops.
• Created a Python C extension to wrap an in-house group communication library. This Python extension turned library was core to the development of MySQL Fabric.

Master degree in Informatics Engineering with specializations in Distributed Systems and Formal Methods.