Design system architecture using microservices, Domain Driven Design, and CQRS patterns with technologies such as MySQL, Elasticsearch, Kafka, and Kafka Connect. Build a code base to facilitate easy implementation by team members. Build infrastructure on AWS, covering Kafka, Elasticsearch, Redis, MySQL, Postgres, Kafka Connect, and KongAPI, along with setting up CI/CD, logging, and alerting systems. Collaborate with various departments to clarify requirements such as purchase orders, order management, inventory, and integration with eCommerce platforms. Migrate data from the old system to the new omnichannel platform. Serve as Scrum Master.

Use the Oracle database management system to store filtered data from various sources. Utilize the ORACLE BI tool to create statistical reports. Employ PLSQL for exporting data into statistical reports.

Programming the configuration of reporting formulas. Managing user authorization and system administration. Developing authentication and authorization using OAuth 2 to ensure the security of the system.

Develop authentication and authorization using OAuth 2 to ensure the security of the system. Develop a video service to facilitate video uploads to storage, including transcoding videos into various formats (240, 360, 720, 1080). All videos are stored in S3. Create a tool to help other teams filter and remove outdated videos from the system. Write unit tests for all backend services to maintain code quality with approximately 85% coverage.