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Hi there ๐Ÿ‘‹ I'm Onjee Kim

Technologies

๊ธฐ์ˆ  ์ดํ•ด ์ˆ˜์ค€
Language Java(11,17)
- Stream, Thread, Java Reflection, Annotation Processor ํ™œ์šฉ ๊ฐ€๋Šฅ
- ์ตœ์‹  ๋ฌธ๋ฒ•(~ 21)์— ๋Œ€ํ•œ ์ดํ•ด
- Junit, AssertJ ๊ธฐ๋ฐ˜ ํ…Œ์ŠคํŠธ ์ฝ”๋“œ ์ž‘์„ฑ ๊ฐ€๋Šฅ
Backend Spring
- mvc, webflux ๊ธฐ๋ฐ˜ REST, ์›น ์†Œ์ผ“, GraphQl API ๊ฐœ๋ฐœ ๊ฐ€๋Šฅ
- Spring Security ์†Œ์Šค์ฝ”๋“œ ์ˆ˜์ค€์˜ ์ดํ•ด. ์ธ์ฆ, ์ธ๊ฐ€ ๊ฐœ๋ฐœ ๊ฐ€๋Šฅ
- Spring Cloud ๊ธฐ๋ฐ˜์˜ MSA ์„œ๋ฒ„ ๊ฐœ๋ฐœ ๊ฐ€๋Šฅ (gateway, config, eureka)
- AOP, Async, Event, ๋นˆ ์ƒ๋ช…์ฃผ๊ธฐ, AutoConfiguration ํ™œ์šฉ ๊ฐ€๋Šฅ
JPA(Hibernate)
- n+1 ๋ฌธ์ œ๋ฅผ ๊ณ ๋ ค ํ•˜๋ฉฐ ์—”ํ‹ฐํ‹ฐ ์„ค๊ณ„ ๊ฐ€๋Šฅ
Http
- ์ฟ ํ‚ค, cors, ์บ์‹œ, ๋ฉฑ๋“ฑ์„ฑ, etag, conditional request์— ๋Œ€ํ•œ ์ดํ•ด
- API ๋ช…์„ธ์„œ ๋ฌธ์„œํ™” ๊ฐ€๋Šฅ
Database SQL
- ERD ์„ค๊ณ„ ๊ฐ€๋Šฅ
- view, index ํ™œ์šฉ ๊ฐ€๋Šฅ
- ์ง‘๊ณ„ ๋ฌธ๋ฒ•(group by, having, with as, join) ํ™œ์šฉ ๊ฐ€๋Šฅ
Postgresql
- MVCC, Vacuum ์— ๋Œ€ํ•œ ์ดํ•ด
ELK
- ์ธ๋ฑ์Šค ๋งคํ•‘, ๋Œ€์‹œ๋ณด๋“œ ๊ตฌ์ถ• ๊ฐ€๋Šฅ
Kafka
- ๋ฆฌ๋ฐธ๋Ÿฐ์‹ฑ, ์ปจ์Šˆ๋จธ ๊ทธ๋ฃน, ์ •ํ•ฉ์„ฑ ๋ณด์žฅ ์ˆ˜์ค€์— ๋Œ€ํ•œ ์ดํ•ด
Redis, Hadoop, Spark
DevOps AWS(ec2, s3, lambda, elb), Docker, Ansible, Ubuntu

Side Project

Blog

Books

Opensource

spring-framework

Apache Zeppelin

spring-cloud-gateway

  • Rate Limiter์˜ Redis Script PR
    • receive positive reviews
    • Waiting for response

graphql-java-extended-scalar

  • ColorHexScalar ๊ด€๋ จ PR
    • No response received

Onji Kim's Projects

jwt-demo icon jwt-demo

https://www.youtube.com/watch?v=N8glaxzDwDg

kafka-to-elk-pipline-preset icon kafka-to-elk-pipline-preset

๋‚˜์ค‘์— ์“ฐ๋ ค๊ณ  ๋ฏธ๋ฆฌ ๋งŒ๋“ค์–ด๋‘๋Š” ์„ธํŒ…

spring-chat icon spring-chat

A chat service implemented with a clean architecture using Spring Security and Web Socket based on Spring Boot.

tcpsocketchatting-withcustomprotocol icon tcpsocketchatting-withcustomprotocol

์ž์ฒด ํ”„๋กœํ† ์ฝœ์„ ๊ฐ€์ง€๊ณ  ์›น์„œ๋ฒ„์™€ ํด๋ผ์ด์–ธํŠธ๋ฅผ ๊ตฌํ˜„ํ•œ TCP ์†Œ์ผ“ํ†ต์‹  ์˜ˆ์ œ

team_project_location_tracking_saas_module icon team_project_location_tracking_saas_module

ํŒ€ํ”„๋กœ์ ํŠธ : ์‚ฌ์šฉํ•œ ๋งŒํผ ์ง€๋ถˆํ•˜๋Š” ์œ„์น˜์ถ”์  ๋ชจ๋“ˆ ํ”„๋กœ์ ํŠธ

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