- Programming: R, Python
- Data: Athena/Iceberg, Redshift, DuckDB, Clickhouse, Spark, Polars, Quarto, AWS
- Tools: Git, Docker, Airflow, CI/CD (GitHub Actions, Jenkins, Codecov)
- Programming: Java, C, C , PHP, Perl, Matlab, Maple, Pascal, BASIC, ...
- Data: MySQL, Oracle, InfluxDB, PostgreSQL, GCP
- Tools: CVS, Subversion