# Tech Stack

| Technology    | Version |
| ------------- | ------- |
| Java          | 11      |
| Scala         | 2.12    |
| Spark         | 3.1.3   |
| Elasticsearch | 6.8.11  |
| Cassandra     | 3.11.8  |
| Postgres      |         |
| Redis         |         |
| Druid         |         |