• Delivered large file upload transcript APIs within two weeks and earned the trust of the partner team.

• Launched real-time ASR model-build multi-threading GRPC microservice system.

• Took charge of both offline time transcription API and real-time model build release MVP to partner team in Q1 2024.

• Realtime video stream automatic data pipeline to transmit video for model training

• Works in Yating-ASR(Automatic Speech Recognition) team as a system backend Engineer.

• Product daily active user growth starts with 10-20 users to more than 200 per day.

• Implemented Client interface to connect ASR ML services and handle audio traffic

• built-up machine learning microservice in the task queue system

• Optimized table structure and migrated table from SQL to NoSQL database for reading optimization

• Reduced nearly 20% cloud service cost by setting up VPC endpoint, S3 glacier archived level class

• Worked in the Amazon Influencer team to promote Amazon Deals to customers and sellers.

• The revenue increases 12% monthly and the customer sign-up rate increases 19% monthly after

projects launched in October 2018.

• Developed ETL pipeline with AWS SNS/SQS to fetch and store promotion data in the database.

• Designed RESTful APIs to generate shared URLs so they can be shared with other customers

• Built database table schema and define primary keys to optimize high-volume customer read queries

• Created script and configuration to generate server health metrics automatically and reduce 20% the operation effect.

• Develop web application in python with Django structure to facilitate grading & delivery of programming paper exams

• Setup the web application in cloud computing Server- Microsoft Azure

• Use cosine similarity to automatically calculate partial credits for exam questions and enhance grading consistency

• Design front-end in responsive pages with HTML5, CSS, jQuery/JavaScript, Bootstrap

• Visualize the data model on abstract student learning behavior

• Continue supporting application develop in future ASU cs courses