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Sangwoo Lee

Full-Stack Software Engineer

Location Seoul, Korea Joined Joined on  Personal website https://linktr.ee/sangwoo_rhie?utm_source=linktree_profile_share&ltsid=eec1b914-2b5a-4972-b5a5-30b40 github website

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Software Engineer at GOODTV in Seoul, Korea

[AWS] 2. EC2 (Elastic Compute Cloud) Instance Fundamentals, SSH
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[AWS] 2. EC2 (Elastic Compute Cloud) Instance Fundamentals, SSH

#aws #beginners #cloud
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10 min read

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Building a Zero-Downtime CI/CD Pipeline: Blue-Green Deployments for 100K+ Daily Requests
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Building a Zero-Downtime CI/CD Pipeline: Blue-Green Deployments for 100K+ Daily Requests

#devops #docker #nginx #githubactions
3
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17 min read
Stop That Notification! How I Built Graceful Cancellation for Mass Push Campaigns
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Stop That Notification! How I Built Graceful Cancellation for Mass Push Campaigns

#node #redis #firebase #shutdown
5
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13 min read
[AWS] 1. IAM (Identity and Access Management) & AWS CLI (Command Line Interface)
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[AWS] 1. IAM (Identity and Access Management) & AWS CLI (Command Line Interface)

#aws #iam #ec2 #devops
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5 min read
Optimizing Push Notification Logging at Scale - From Synchronous Bottleneck to Async Batching
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Optimizing Push Notification Logging at Scale - From Synchronous Bottleneck to Async Batching

#nestjs #performance #database #optimization
2
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12 min read
Breaking Down a 1,500-Line Firebase Service - Clean Architecture in Practice
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Breaking Down a 1,500-Line Firebase Service - Clean Architecture in Practice

5
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16 min read
Decoupling Firebase Push Notification Logic with BullMQ - From Synchronous Chaos to Asynchronous Elegance
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Decoupling Firebase Push Notification Logic with BullMQ - From Synchronous Chaos to Asynchronous Elegance

#nestjs #bullmq #firebase #architecture
3
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8 min read
Firebase Push Tokens Are Device-Specific, Not User-Specific: A Critical Refactoring
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Firebase Push Tokens Are Device-Specific, Not User-Specific: A Critical Refactoring

#firebase #nestjs #typescript #notifications
1
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7 min read
Refactoring Mass Push Notifications: From Offset to Cursor Pagination
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Refactoring Mass Push Notifications: From Offset to Cursor Pagination

#firebase #nestjs #pagination #cursor
3
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9 min read
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