Cloud Engineer Intern @ Dish Network (EchoStar)

• Led PoC on OpenStack as VMware replacement, potentially saving licensing costs on over 20K bare-metal servers.
• Developed Ansible Playbooks to automate VM provisioning and Kubernetes deployment, improving provisioning time by 90%.
• Standardized OpenStack deployment using MicroStack, OpenStack Helm and Kolla Ansible.

Software Engineer II @ Nexon

• Devised a real-time disclosure platform, enabling 15+ games (Gross Revenue: $1.4B) to meet regulatory requirements.
  🔗 Project Blog
• Rebuilt a data pipeline to handle 5TB+ parquet logs per hour using Athena and S3, optimizing cloud costs by 73%.
• Contributed to an Open-Source project by adding reactive support, increasing observability coverage by 30%.
  🔗 Pull Request
• Implemented a snapshot service capable of saving 1K+ pages in under 5 mins, reducing debugging time by 21%.
• Refactored server apps to use reactive handlers, reducing p95 response time by 40% and EC2 bill by $21K.
• Led the adoption of observability tools, reducing Mean Time to Detection by 47%.
  🔗 Presentation

Software Engineer I @ Nexon

• Optimized notification service to serve 100K notifications with 99.99% uptime and <100ms p95 response time; Used Kafka to relieve backpressure and architected against hot partitions in DynamoDB, achieving 132% higher throughput than MySQL.
• Developed real-time user H/W survey using Spark, automating a monthly 3-day task.
• Integrated a central authorization service using Spring Security, streamlining new employee onboarding from 13 days to 1 day.
• Incorporated an API Gateway for 11 internal APIs, improving the integration time from weeks to hours.
• Created a survey platform to ask customers’ preferences on in-game items, resulting in a 13% increase in sales.
• Standardized CI/CD pipelines, Git flows, and Kubernetes manifests, reducing deployment time by 49%.

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