- Wrote own integration with Elastic Enterprise Search with memoization handled by Redis storage. - Wrote PostgreSQL-side function for generating random coodrinates on map in range from certain spot ("donut-like" region, like point should be futher than 5km but not farther than 15km). - Improved performance by rewriting ActiveRecord to Arel. - Improved performance of AngularJS app by refactoring logic on conditional elements - Refactored template nesting for emails to minify identical code and increase rediability.