• Developed and designed a high-performance MongoDB database from scratch, resulting in 3x faster data retrieval and dramatically reduced query response times. This new system significantly improved user engagement by 40%.• Designed and implemented a scalable RESTful API using Node.js and Express.js, efficiently managing large datasets through optimized MongoDB queries with indexing. This streamlined CRUD operations, improved data management efficiency, and facilitated seamless data exchange between the backend and frontend, enhancing user experience.• Leveraged Node.js and Express.js to develop data pipelines for ingesting sensor data (e.g., temperature) into MongoDB, facilitating bi-weekly dashboards. This led to a 25% increase in detecting critical overheating issues and improved device performance.• Diagnosed and resolved complex backend system bugs, achieving a 35% improvement in system stability and substantially enhancing overall system performance.• Implemented interactive dashboards with Vue.js and Chart.js, enabling clear data visualization and insights from backend data. Utilized various chart types (e.g., line, scatter) to effectively communicate complex data relationships, enhancing data-driven decision-making.• Authored comprehensive documentation for RESTful APIs and MongoDB queries, reducing communication overhead and facilitating easier use and integration for team members.• Utilized fluency in Mandarin to bridge communication gaps during Shanghai exhibition meetings and verified the accuracy and cultural relevance of video translations, ensuring successful collaboration with international teams and maximizing content impact for the Chinese market.

• Executed an agile task management tool Ora for task tracking and saved 50% communication cost.• Created functional requirement documentation to prioritize features and the website roadmap.• Planned a scalable and maintainable website structure to increase 20% development productivity.•

• Visualized complex data into graphics in a 200K USD project to reduce 50% communication cost.• Redesigned order forms and invoice templates in Adobe InDesign to avoid 20% of mistakes.• Collaborated and designed website layout with PM in Figma to increase 30% order process efficiency.

• Won the Best employee of the month twice for supporting co-workers.• Worked in a daily sales 18K CAD fast-paced environment with 10-15 people to accomplish the duties including opening, closing the store and serving customers.• Introduced and promoted the products to assist customers with consuming and finding their choice.