Outliers(Mar. 2024 ~ Current)
relly.io | Commercial Project
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Role
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CEO & Backend Engineer
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Skills
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Python
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Achievements
◦
Launched project management tool(relly.io)
Toss Securities(Dec. 2023 ~ Feb. 2024)
NoOps Team | Commercial project
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Role
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Backend Engineer
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Skills
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Python
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K8S
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Achievements
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Improved no-code admin audit logging
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Improved multi-tenant deployment pipeline
Asleep(Aug. 2022 ~ Nov. 2023)
Sleep Tech | Commercial project
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Role
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Backend Engineer
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Cloud Engineer
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Skills
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Software design
▪
Domain-driven design
▪
MSA
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Python
▪
API: FastAPI
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Test: Pytest
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Database
▪
MySQL
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Redis
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Cloud
▪
AWS
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IaC: AWS CDK
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Monitoring
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Datadog
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Achievements
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Implemented global paid sleep tracker
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Report, Interpretation, Statistics, Subscription, etc.
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Implemented cloud inference architecture serving Generative AI
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Stable Diffusion (w/ diffusers)
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Implemented data pipelines for data analysis
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MySQL CDC, AWS DMS, AWS RedShift
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Optimized infrastructure costs
ABLY(Jan. 2022 ~ Aug. 2022)
Advertising system | Commercial project
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Role
◦
Backend Engineer
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Skills
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Python
▪
API: Django & Django REST Framework
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Test: PyTest
▪
Async/Batch: Celery
▪
Docs: DRF-yasg
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Database
▪
MySQL
▪
Redis
▪
ElasticSearch
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Cloud
▪
AWS
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Achievements
◦
Implemented Ads core features
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Display, Payment, Settlement, Statistics, etc.
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Cooperated with ML engineers
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Recommendation, CTR prediction, A/B tests, etc.
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Implemented batch processing(w/ Celery)
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Optimized query & index
HangFive(Aug. 2022 ~ Dec. 2021)
Friends Discovery | Commercial project
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Role
◦
Backend Engineer
◦
Growth Hacker
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Skills
◦
Python
▪
API: Django & Django REST Framework
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Test: PyTest
▪
Docs: OpenAPI Spec 3.0
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BI - Growth Hacking & Data Visualization
▪
SQL
▪
Tools: BigQuery, Holistics
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Database
▪
MySQL
▪
Redis
◦
Cloud
▪
AWS
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Achievements
◦
Implemented core features
▪
Friends matching, fortune-telling, social community, etc.
◦
Implemented cross platform InApp purchase(w/ Template method pattern)
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Implemented loosely coupled event handling(w/ Django signals & observer pattern)
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Event triggers cache invalidation, Slack alert, logging
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Implemented API tests(w/ PyTest & Schema)
▪
Speeched at PyCon Korea 2021
Python DDD
Python Domain-Driven Design | Open source ( 300+)
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Role
◦
Author
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Skills
◦
Python
▪
FastAPI
▪
Pydantic
▪
sqlalchemy
◦
Software design
Reflex
Full-stack Python framework | Open source ( 15k+)
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Role
◦
Contributor
•
Skills
◦
Python
▪
Meta programming
Django-DDD
Domain-Driven Design for Django without DRF | Open source
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Role
◦
Author
•
Skills
◦
Python
▪
Django & Django Ninja
▪
PyTest
◦
Software design
Pepsi Korea(Jun. 2020 ~ Jul. 2020)
Pepsi Korea promotion event | Commercial project
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Role
◦
Backend developer
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Skills
◦
Python
▪
API: Django & Django REST Framework
▪
Docs: DRF-yasg
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Points to note
◦
Implemented coupon rewards service
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Cooperated with global Pepsi DevOps team
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Migrated server & database from AWS to Azure