Jay Kay

• Managed big data tables, data warehouse, and microservices to create, read, update, and delete data, managed reports, and supported ad-hoc data requests.
• Worked directly with triage teams to uncover issues in the application as they related to data processing.
• Architected and implemented complex back-end systems, ensuring robustness, scalability, and security.

• Set up a GIS (Geographic Information System) that centralizes data integrations with US counties and municipalities.
• Assumed responsibility for the deployments and monitoring of the production environment.
• Implemented continuous integration, infrastructure health checks, as well as the initial automated test suite.

• Architected and implemented the "follow" feature, with push notifications currently serving over five million users.
• Re-implemented the user selection tool for product sampling campaigns, and reduced query latency from minutes to seconds.
• Drove to completion a graph database model to power fine-grained recommendations across the site.

• Built a C# to TypeScript data model class transpiler.
• Added currency conversion to the invoicing solution using the API of the Swedish central bank.
• Implemented integration with Toggl time tracking for the invoicing solution offered by the company.
• Developed an email delivery and tracking solution for invoices using the Mailgun API.