Experience in designing and architecting large data warehouse systems.
Serious experience with Postgres or other relational database. Experience in database replication, performance tuning and backup.
Experience with capturing, managing, and processing Big Data (terabytes of data present in web logs, documents, etc.).
Fluency with at least one scripting language like Python, Ruby or Scala.
Knowledge of non-relational databases like MongoDB or Hadoop, query tools (e.g. Hive or Pig) and tools for distributed computation (e.g. Spark).
Should value simple solutions, write concise code, lead with tests, and believe in devops.