Senior Site Reliability Engineer (KR)

Team: Infrastructure Engineering

Location: Yeoksam, Seoul

Commitment: Full-time

Workplace Type: hybrid

Responsibilities

Platform reliability and operations: Own platform-layer reliability across both environments. In our internal cloud environment: full ownership — cluster health, resource management (CPU/memory/OOM), scheduling, autoscaling, Kubernetes/EKS lifecycle. In the customer environment: operate directly at the application-namespace level and for the customer-controlled cluster/node layer, diagnose and clearly communicate what's needed, and operate the platform within their setup, decisions, and constraints.
Monitoring and Alerting: Build and maintain robust monitoring and alerting for the infrastructure and platform layer to proactively identify and resolve issues before they impact the platform.
Incident Response: Own incident first-response for the platform layer and participate in the on-call rotation to minimize downtime and restore service quickly.
Automation: Develop automation tools and scripts to streamline operations, reduce manual effort, and enable engineering teams to operate their own services safely.
Capacity Planning: Forecast resource needs, optimize resource utilization, and ensure the platform infrastructure can handle increasing workloads.
Deployment infrastructure: Build and maintain CI/CD pipelines and deployment infrastructure for the platform.
Continuous Improvement: Drive a culture of continuous improvement by identifying opportunities to enhance platform reliability, performance, and efficiency.

Basic Qualifications

Bachelor's degree in computer science, engineering, or a related discipline
5+ years of industry experience as a Site Reliability Engineer or in platform/infrastructure engineering
Hands-on experience operating Kubernetes in production (EKS preferred): cluster lifecycle, scheduling, autoscaling, resource management
Experience with cloud platforms (AWS preferred) and containerization technologies (Docker, Kubernetes)
Experience with observability and alerting tools (Prometheus, Grafana, ElasticSearch, Jaeger)
Experience with scripting languages (Python, Bash)
Working knowledge of GitHub, GitHub Actions, and CI/CD concepts
Strong problem-solving and troubleshooting skills
Working proficiency in English for internal documentation and technical coordination

Preferred Qualifications

Knowledge of AI/ML infrastructure and workloads.
Knowledge of database technologies (MongoDB, PostgreSQL)
Experience operating software in customer-managed (on-prem or customer-cloud) environments
Exposure to manufacturing, semiconductor, or enterprise B2B customer environments