Using as the main operating system. Mostly, use Ubuntu. Capable of writing bash/shell scripts.

Experienced with git-based development. Mostly, use Github. Also, have experience in working with GitLab.

Experienced with one of famous cloud, AWS(Amazon Web Services). Mostly, use Computing, Database, Deploy, Network.

Mostly, use Spring Boot. Using for java based services(MVC, Rest-API, Batch). Experienced with Servlet and Webflux.

Using for node.js based services(MVC, Rest-API, Batch).

Using for search service & log monitoring.

Using for pipeline for ELK based system & producer and consumer for kafka.

Using for dashboard for service and system metric.

Using for search service for almost two billion documents

Using for main database

Using for main database for more than billions documents with Hundreds TB

Mostly, use OpenJDK. Using as the main language for professional development.

Using for professional development which consider io performance. Experienced with socket.io and deploying with jenkins & capistrano.

Using for ML/DL or tiny api and batch development. Experienced with Flask and Alchemy.

Using for dev-tool or tiny api and batch development.

Write most of the programs as dockerized container.

Deploying and managing container based applications on Kubernetes. Experienced with monitoring metrics by Prometheus.

Using for monitoring operating system and applications. Experienced with setup and configure Prometheus for metric exporters and AlertManager.