# Kyudoun S.

> Software Engineer @ Prime Video Financial Systems

Location: New York City Metropolitan Area, United States
Profile: https://flows.cv/kyudoun

## Work Experience
### Software Engineer @ Amazon
Jan 2024 – Present | New York City Metropolitan Area
ADSP Global Customer Experience

- Worked on expanding Amazon's DSP to international marketplaces.
- Implemented core changes to support the rollout of regional advertiser accounts.
- Enhanced account navigation by adding regional suffixes to the breadcrumbs, improving advertiser usability and reducing friction in identifying account regions.
- Developed and deployed an internal compliance dashboard in React and Cloudscape that automatically surfaced code violations across the codebase, increasing visibility into global compliance gaps.
- Upgraded infrastructure dependencies by modernizing JDK versions and updating testing frameworks (e.g., Cypress, JUnit), improving build reliability and maintaining operational excellence.
- Extended the spreadsheet bulk uploader to support multi-country orders from a single global advertiser account (Americas/EMEA/APAC), reducing manual creation time by 70% and enabling bulk creation for 30+ countries.

### Software Engineer @ Amazon
Jan 2022 – Jan 2022 | New York City Metropolitan Area
Real-time Bidding Experimentation

- Designed and deployed Apache Spark jobs (AWS EMR) on AWS Cloud Formation and Step Functions to generate weather features to improve the model used for ranking ads
- Transformed raw data into an ingestible structure using Spark SQL and mapping functions in Scala

### Software Engineer @ NAVER Corp
Jan 2020 – Jan 2020 | Gyeonggi, South Korea
Worked in the CLOVA Platform Development team. Gained experience on solving challenges that a distributed system under large volume of traffic might face.

### Information Technology Specialist, KATUSA @ 8th Army ROKA Support Group
Jan 2017 – Jan 2019 | Camp Humphreys, Pyeongtaek-Si, South Korea
As a KATUSA (Korean Augmentation to the U.S. Army), I have worked as a IT specialist within the U.S. Army's military intelligence section. As an IT specialist, I have done the following. 

1. Maintained networks, hardware and software. Experienced in various areas starting from installation to troubleshooting problems for machines.

2. Provided customer and network administration services.


## Education
### Master's degree in Computer Science
New York University

### Undergraduate in Computer Science
The Hong Kong University of Science and Technology

### High School Diploma
American School of Warsaw


## Contact & Social
- LinkedIn: https://linkedin.com/in/kyudoun-sim

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Source: https://flows.cv/kyudoun
JSON Resume: https://flows.cv/kyudoun/resume.json
Last updated: 2026-04-05