Sergey Morozov Email & Phone Number

Mclean, Va, Us

- TypeScript (React, Next, Chai), Tailwind, Python (Django), Redis, PostgreSQL, GCP- Created an SPA for doctors to remotely diagnose and prescribe medication to children- Automated component and E2E Cypress tests with 100% coverage of essential business logic- Maintained production database, including backups, migrations, and query profiling- Optimized AI generated code performance by 3 times

- JavaScript (Vue, Chai), Tailwind, PHP (Yii), Redis, Elasticsearch, MySQL, GCP- Diagnosed production failures and improved performance of an ecommerce site (72M hits/day)- Increased the max number of concurrent users on the site by 12 times- Reduced SPA/API unit and integration test time from 10 to 6 minutes- Balanced order fulfillment workload with sales and inventory projections

- PHP (Magento), JavaScript (React, Node), GraphQL, Redis, Elasticsearch, MySQL, AWS- Worked around limitations and reduced service costs of third party APIs (15M hits/day)- Trained a machine learning model to prioritize custom floral arrangements over stock images- Introduced unit tests for code stability and feature flags for smooth deploys- Automated AWS resource instantiation and alerts for post-release monitoring

- PHP (Laravel), JavaScript (jQuery), MySQL, AWS- Maintained the API for the most popular dog walking app (7M hits/day)- Sped up continuous integration and deployment pipeline from 15 to 3 minutes- Mentored, trained, and developed onboarding materials for 10 engineers- Developed a coding challenge, reviewed all solutions, and conducted technical interviews

- PHP (Zend), JavaScript (jQuery), Redis, MySQL, AWS- Maintained the API for a $50M lead generation platform (400K hits/day)- Improved internal reporting performance from 1 hour to 15 minutes- Refactored legacy system source code down to 40% of the original size- Visualized key performance indicators over time and market sectors