DevOps Engineer
PT Atmatech Global Informatika • Yogyakarta
February 2023 – Present Full-time
Atmatech is a software development company specializing in technology research and advanced software solutions, with a focus on Artificial Intelligence (AI) and big data analytics.
- Managed and maintained bare-metal server infrastructure across Development, Staging, and Production environments, ensuring high availability, environment parity, and operational stability.
- Deployed and administered K3s Kubernetes clusters on bare-metal staging environments, implementing Longhorn for distributed persistent storage and Traefik as the ingress controller.
- Designed and automated CI/CD pipelines using Jenkins and GitLab CI/CD, streamlining build, testing, and deployment workflows for multi-service applications.
- Orchestrated Kubernetes clusters and Docker-based workloads across staging and production environments, managing microservices and background worker services supporting Golang, Python, Node.js, and PHP applications.
- Executed a full cloud infrastructure migration from DigitalOcean to Contabo, transferring Kubernetes clusters, databases, background workers, and container workloads with minimal downtime and cost optimization.
- Hardened Linux server infrastructure and optimized database performance, resolving critical bottlenecks to achieve a 25% reduction in system downtime.
- Implemented comprehensive infrastructure monitoring and centralized logging using Prometheus, Grafana, Dozzle, and Uptime Kuma, including custom API development for container health checks.
- Set up, configured, and managed secure VPN infrastructure for the developer team to ensure seamless remote access to internal servers and development environments.