Jeongwoo Kim

• Developed a service that automatically identified personas by segmenting potential and existing clients, playing a pivotal role in its design and implementation • Built machine learning models and a pipeline to estimate degrees of different emotions based on audio • Assisted in building machine learning models to identify patterns to help infants sleep better • Designed and built machine learning backend pipelines using AWS SageMaker, Fargate, Step Functions, and Lambda, ensuring smooth and efficient deployment of models • Developed and maintained a data lake (ETL and ELT processes) using AWS services, including AWS EC2, Glue, Athena, Lambda, Fargate, RDS, S3, Step Functions, and many others as well as Docker, DBT, FiveTran, HubSpot, Pipedrive, and SalesForce • Designed and built a payment system using Stripe, providing a secure and reliable way for customers to make transactions • Automated backend QA testing with PyTest, RobotFramework, Selenium, GitHub Actions, and Jenkins to identify and prevent errors while configuring frontend tests using Cypress • Built data quality and service performance metrics to analyze the existing services, estimate the cost of maintaining the system, and diagnose data problems • Generated data-driven insights for decision-making and developed automated analysis reports on demographics, adoption curve, persuasion angles, personas, and other crucial factors • Developed a product recommendation system using Gensim • Built a product to generate potential leads for business-to-business (B2B) sales

• Led a small team to create a web app from scratch using React, Django, and MariaDB which will be annually used by 1000+ users • Created a REST API using Django Rest Framework • Maintained several websites using WordPress or CodeIgniter based on PHP, MySQL, and Angular JS • Aided to create several servers and migrated websites to the servers • Assisted to set up GitLap environments for the university websites • Created a DokuWiki website and documented work procedures • Worked with full time faculties to facilitate the administration • Assisted team members by trouble shooting and resolving technical problems in Slack, Trello, Microsoft, Adobe, and many other products

• Studied ways to implement Reinforcement Learning (and supervised Machine Learning) to efficiently solve mathematical problems (Gershgorin’s Theorem and Knot Theorem)

• Resolved general computer issues • Worked with secondary-aged students to improve their English study skills

• Worked with a small team to manage crews of 120 – 650 (max) to maintain safe sailing practices • Trained and directed naval staff in emergency situations • Assisted Captain with sailing and communicating with other ships • Managed communication channels with other naval vessels