Mike Jakuszewski

Software Engineer @Opi

Calgary, AB, CA

Created reusable, dynamic React components focusing on modular design and user-friendly interfaces. Leveraged React Query and Tailwind CSS for efficient data fetching and styling.• Led the implementation of i18n in the frontend, enabling seamless language translation and expanding product accessibility for a global audience.• Streamlined data synchronization by utilizing AWS IoT Core, Rails, and React for real-time subscription updates, leveraging WebSocket connections for efficient data flow.• Spearheaded the addition of composite keys to a partitioned table, significantly accelerating migration speed for 700 million records, solving a major performance bottleneck.• Developed a custom lookup table that reduced database search time by 90%, optimizing data retrieval processes and improving overall system performance.• Built comprehensive test suites with Cypress, Vitest, and RSpec to ensure application stability and robust code quality, maintaining over 95% test coverage.• Utilized GitHub Actions to streamline the CI/CD pipeline, enabling efficient, automated testing and deployment for rapid, reliable releases.