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@ethan-k
ethan-k
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강은석 (Ethan) ethan-k

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ethan-k/README.md

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🚀 About Me

Results-driven engineer with10+ years of experience connecting domains to solve complex problems. I specialize in building scalable distributed systems and leading engineering teams to deliver high-impact solutions.

  • 🌱 Passionate aboutmicroservices architecture,cloud infrastructure, andteam leadership
  • 🎯 Led engineering initiatives that improved user connection rates by 20% and reduced API costs by 20%
  • 🌍 International experience acrossSouth Korea,Germany,Singapore, andJapan

🛠️ Tech Stack

Programming Languages

JavaGoKotlinPythonPHPTypeScriptJavaScript

Frontend

ReactReduxReact Native

Backend & Frameworks

SpringSpring BootgRPC

Databases

MySQLPostgreSQLMongoDBRedis

Cloud & Infrastructure

AWSKubernetesDockerTerraformHelm

Message Queues & Streaming

Apache KafkaRabbitMQAmazon SQS

DevOps & CI/CD

GitHub ActionsGitLab CIJenkinsAnsible

💼 Professional Highlights

🏦 Banksalad (Senior Software Engineer - Tech Lead)

  • 🎯 Performance Optimization: Reduced API call costs by 20% through cache optimization
  • 📈 Architecture Leadership: Led MyData 2.0 initiative, improving user connection rates by 20%
  • 🔄 System Resilience: Architected transition from synchronous to asynchronous data synchronization
  • 👥 Team Leadership: Led 3-person engineering team with Agile and mob programming practices
  • ⚡ Scale: Built large-scale Go applications handling 4TB+ MySQL databases

🌍 International Experience

  • 🇩🇪 Germany: Raisin - Authentication systems, Keycloak, AWS Lambda
  • 🇸🇬 Singapore: Facebook (E2E testing), Gojek (Financial platform)
  • 🇯🇵 Japan: Rakuten - Travel booking platform

🎯 Key Achievements

  • 📊20% Cost Reduction in API calls through optimization strategies
  • 📈20% Improvement in user connection rates through architectural redesign
  • 🏗️Migration Leadership from on-premises to cloud infrastructure
  • 🔧Full-Stack Expertise across backend, frontend, and infrastructure
  • 🌐Global Impact with experience across 4 countries and multiple industries

📈 GitHub Stats

GitHub Stats

📫 Let's Connect!

I'm always interested in discussing technology, architecture, and engineering leadership. Feel free to reach out!

PinnedLoading

  1. leet-codeleet-codePublic

    Leet Code Practice

    Java 1

  2. jetbrains-deployment-pluginjetbrains-deployment-pluginPublic

    Kotlin

  3. cachemanager-gocachemanager-goPublic

    Cache Manager in Go

    Go

  4. bazel-spring-boot-kotlinbazel-spring-boot-kotlinPublic

    Bazel example for Spring boot with kotlin

    Starlark

  5. pomodoro-clipomodoro-cliPublic

    Go 1


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