I'm a data engineer
I am strong on Data lakehouse, DWH, BI. I develop them on open source and without copyright fees.
In addition, I am also good at applications and mobile.
Techniques I often use:
With Data are Hadoop, Kafka, Nifi, Spark, Ariflow, Pentaho, ODI, Datastage, Tableau, Power BI, Oracle, SQL Server, MySQL...
For web/app, it is Java, Native, C#, Nodejs...