Young Sik Kim

Developed Backend Server for Knox Guard (KG):

• Developed backend APIs and batch server for KG firmware management functionality.
• Designed and implemented device-facing APIs for KG 3.0.
• Led overall server architecture design and data schema definition for KG Analytics.
• Designed and implemented ETL pipeline for KG based on the Knox Data Platform.

Developed Backend Server and ETL Data Pipeline for Knox Asset Intelligence:

• Participated in the development of a new Samsung Knox service designed to provide work insights and improve productivity for frontline workers.
• Developed backend server and APIs for the Battery Service.
• Designed and implemented an ETL pipeline to process battery data from devices using AWS Glue, AWS Redshift, and AWS Athena.
• Designed schemas for large-scale battery big data and optimized queries for performance.
• Improved ETL job efficiency and reliability for big data processing.
• Developed backend APIs for the Security Center feature.
• Led ETL migration to the Knox B2B Data Platform.
• Tech Stack & Tools Used: Spring Boot, Python, AWS Glue, AWS Redshift, AWS Athena, AWS Lambda, AWS S3, AWS Step Functions, AWS EKS, AWS MSK, Apache Spark, Apache Airflow, Apache Hudi, MongoDB, OpenSearch.

Developed Backend Server for Knox Guard (KG):

• Built backend server for Knox Guard, a service that enables remote device locking for installment-based device sales.
• Developed backend APIs and batch servers to support core KG functionalities.
• Designed and provided Open APIs for B2B customer integration.
• Performed MongoDB query optimization and conducted performance testing.
• Developed an automated testing tool between server and device using Python.
• Developed using Spring Boot, Python, and MongoDB technologies.

Developed Backend Server for B2B Wearable Service Platform (WSP):

• Customized Galaxy Watch applications for B2B use to enhance enterprise productivity.
• Developed API backend servers based on Microservices Architecture (MSA) and Kubernetes.
• Designed and provided Open APIs enabling B2B customers to directly interact with the platform.
• Utilized technologies such as Spring Boot, Kubernetes, Python and AWS Dynamo DB for backend development.

Developed Samsung’s Android-based Knox B2B solutions and framework components:

• Supported the Project Leader organization in managing projects for mobile device models targeted at U.S. telecom operator(Sprint).
• Handled Google approval processes for Sprint models and offered technical support to obtain carrier's Technical Approval.
• Provided on-site field test support in Overland Park, Kansas, and assisted with local technical and validation issues.