Optimized PostgreSQL database design to reduce individual query time from 13s to 12ms.

Scaled the back-end using NGINX load balancing to support over 2000 requests per second

Utilized New Relic, K6 and Loader.io to stress test query designs in deployment, reducing potential error rates by more than half.

Created an algorithm to find similar-sounding beats of songs utilizing the Spotify API AudioAnalysis endpoint

Leveraged the Web Audio API to interweave two audio tracks based on a list of similar-sounding beats, creating one mashup from two songs

Implemented a solution using React refs to switch between active songs at the beats designated by the mashup algorithm

Built a relational database of reviews, using Sequelize to paginate responses to queries.

Created extensible framework for review filter types and filter options, to allow for ease of future filter development.

Implemented a two-point range slider to control a time-range filter, using Styled Components to dynamically update the slider visuals to match the filter state in React.

Employed text-compression middleware in Express to boost Google page speed performance results for the reviews section from 68 to 96.