Led the design and implementation of the infrastructure and architecture for a new team, utilizing technologies such as Python, Django, Flask, GCP, Docker, MySQL, and Elasticsearch. Provided mentorship to developers to enhance code quality and ensure compliance with coding standards. Conducted analyses to optimize infrastructure, effectively reducing GCP costs. Spearheaded a data centralization initiative aimed at storing and processing high-traffic data, which improved alerting, dashboard monitoring, and reporting capabilities.

Led a team of seven developers to build and maintain multiple services and systems. Successfully ensured that the notification service could handle 40-60 million messages daily without experiencing downtime. Developed infrastructure strategies to enhance both scalability and maintainability of the systems.

Contributed to the development and enhancement of diverse microservices and ELT systems. Utilized Kafka and API integrations for seamless service connectivity. Achieved a 30% performance boost by benchmarking and optimizing the report and file upload processes using Django. Enhanced code performance and maintainability through code refactoring and implementation of design patterns. Improved the streaming pipeline by restructuring core systems.

This project involved revamping and optimizing an outdated system using Python, effectively doubling its speed. Implemented AMQP for enhanced scalability in PHP systems. Conducted benchmarking to enhance the performance of all backend processes using PHP and Python. Displayed strong logical thinking while handling big data, processing over 300 million documents. Contributed to frontend development tasks using Laravel 5, AMP, and SCSS. Developed a comprehensive data analytics dashboard through Azure Data Factory for data warehousing and ETL processes. Established and maintained scalable, reliable, and efficient data pipelines using Docker, ELK, and CI/CD with TeamCity. Operated within an agile environment, employing Scrum methodologies.

During my time at Onetech Asia Company, I managed to release a website for insurance management under time pressure and while learning a new language. I played a key role in connecting server management with multiple live stream servers using autoscaling. Performance checks on live streams were conducted using Chrome Headless. I also implemented additional functionalities, including a chat box using Websocket and payment integration. In a Laravel 5 project, I was solely responsible for developing an API server dedicated to order storage. Furthermore, I incorporated features like a simple video editor, folder management, and a bookmarking system.

In the Symfony 2 project, I specialized in identifying and fixing bugs. Within two weeks, I addressed dozens of issues and contributed to the user profile feature. I also worked on applying themes and documenting bugs in Magento 2. As a key member of the CakePHP 3 project, I implemented the campaign feature with functional testing and successfully imported 3 million rows of data into MySQL in under 20 minutes. Additionally, I maintained a project based on Yii 2.

The project involved developing a web service with a focus on the front-end using AngularJS. Laravel 4 was employed to manage articles, banners, and members. The search accuracy was enhanced using Elasticsearch. To create workers that can crawl products from multiple sites, Silex was utilized. Data extraction from websites with JavaScript pagination was accomplished with PhantomJS. Additionally, Zend 2 was used to manage a large number of products, consisting of millions of rows.