TOP-20 most wanted hard skills for
etl developer

👇

ETL – 79

SQL – 22

Java – 15

ML – 10

OLAP – 8

PostgreSQL – 8

SSIS – 7

ClickHouse – 7

Apache Airflow – 6

LDAP – 5

Apache Kafka – 5

Agile – 3

XML – 3

Unix – 3

shell – 3

Transact-SQL – 2

Scrum – 2

Oracle Database – 2

Performance testing – 2

JSON – 2

(based on an analysis of 16 vacancies)

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