# Young Chan Kim

> Software Engineer at Meta

Location: United States, United States
Profile: https://flows.cv/youngchankim

Software Engineer   https://github.com/ovekyc

## Work Experience
### Software Engineer @ Meta
Jan 2024 – Present | San Francisco Bay Area

### Software Engineer @ Amazon
Jan 2020 – Jan 2024 | London, United Kingdom
●PrimeVideo customer identification, profile workflow, parental controls and pins
- Engineering global scale multi region systems on microservice architecture - AWS, Linux, VPC, EC2, Docker, JVM, Java, Kotlin, Spring, Netty, Redis, RPC, DynamoDB, S3 - high traffic, low latency and 99.99% availability.
- Develop proof-based operations to enable lock on profiles. Full stack support from backend to iOS.
- Improve team productivity by broadening usage of infrastructure-as-code(Cloud Formation, CDK, Git), pipelines(CI/CD), auto-scaling, Resilience4j and CloudWatch.
- PV designated auth mechanism and systems that brings more resiliency to PV traffic, tightens security by granting only essential permissions for playback, enables emergency playback access in case of unavailability of systems.
- Develop and improve test strategy and libraries - unit-tests, component tests and integration tests(e2e tests), chaos tests
- Introduce cross regional resiliency to core traffic shape to prevent regional failure and improve availability. (Route53, network load balancer, Redis cache, cache invalidation)
- Built asynchronous I/O based cache client library that enables disaster recovery(fail-open/close), negative result caching, backward compatible serialization, and cache eviction. (Kotlin coroutine, serialization, edge caching, metrics, failure mode)
- Designed avatar selection system that provides dynamic reloading, localization strings and images using AWS App-config.
- Built message queue(mq) based asynchronous data processing systems. (Route53, Gateway, SQS/SNS, Lambda)
- Built a data migration system to support profile level settings. Migrated 5B of PrimeVideo settings without downtime.
- Participating in scrum leader rota, running meetings, collaborating with various teams in/outside of PV - front/backend dev teams, UI/UX designers and products/engineering managers. (Agile)

### Software Engineer @ Kakao Corp
Jan 2017 – Jan 2019 | Korea
Kakao is a global mobile lifestyle platform company with services spanning messaging, mail, search, news, advertising, gaming, e-commerce, music, maps and more.

● AI Inference system.
- Horizontally scalable serving system of machine­ learned models for AI service using container­orchestration on GPU devices.
- Improved performances - memory efficiency, time complexity. (n square to constant)
- Developed polygon clustering (disjoint-set, dfs, convex hull algorithm)
- Developed cloud­native server using Nvidia­Docker, Kubernetes, Marathon, gRPC, Python, Flask, asyncio and TF­Serving.

● Search backend system.
- High availability and fault ­tolerant system, serving billions of documents data responding over 900 QPS. (avg latency: 0.3s)
- Improved performances of indexing process more than 2x. (Spring, Java and search engine, POS ­tagger of Kakao)
- Developed business features such as documents/keywords clustering, stable multi­thread data and request handling. (Go­lang)

### Software Engineer @ N3N
Jan 2017 – Jan 2017 | San Francisco Bay Area
N3N provides IoT visualization platform seamlessly converges data from sensors, connected devices, video and more in a single view for real-time actionable insights that drive real-world decisions.

● Big­data analysis and monitoring solution.
- Built CI/CD pipeline of entire project using Jenkins, unit­test, coverage, Docker, AWS and Git. (DevOps)
- Integrated external REST spec apis into solution. (Swagger, RAML, etc.)

### Software Engineer @ Pingo
Jan 2016 – Jan 2017 | Jong-ro, Seoul, Korea
● Real­time local event sharing application.
- Developed earth scale RESTful backend using features of Geo­Hash and LevelDB. (avg latency: 0.035s)
- Built infinitely scale­outable backend system with CI/CD pipeline using Docker on AWS env. (EC2, Lambda, S3, Travis.CI)

### Software Engineer Intern @ Samsung Electronics Software Membership
Jan 2015 – Jan 2016 | Sinchon, Seoul, Korea
Samsung Electronics Software Research Center internship program.

- Researched CS related subjects such as information retrieval and machine learning. 
● Distributed machine learning framework using Tensorflow.
- Designed machine­learning model templates that can easily build by user using web user­interface. (Regression, CNN)
- Implemented long polling mechanism protocol to handle long­time tasks with Redis cluster. (Python, Flask, MySQL, ORM) 

● Internet activity pattern analysis.
- Analyzed implicit relevance feedback, which is collected by user interaction toward browser. (tf­idf, nlp­pos tagger)
- Designed suggest­algorithm using collaborative filtering, min­hash and map­reduce mechanism. (41M data)


## Education
### Bachelor's degree in Computer Engineering
Hongik University
Jan 2011 – Jan 2017


## Contact & Social
- LinkedIn: https://linkedin.com/in/youngchan992

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Source: https://flows.cv/youngchankim
JSON Resume: https://flows.cv/youngchankim/resume.json
Last updated: 2026-03-22