Nice: SQL mastering, good ORM trade-offs and inner-working understanding, good general database understanding and usage (let PostgreSQL be your friend)
But you'd also better master few pieces of software like Hadoop, Solr, Talend, Cassandra... to differentiate/specialize (try and pick what you love doing, contribute to open-source with these technologies)
Nice: SQL mastering, good ORM trade-offs and inner-working understanding, good general database understanding and usage (let PostgreSQL be your friend)
But you'd also better master few pieces of software like Hadoop, Solr, Talend, Cassandra... to differentiate/specialize (try and pick what you love doing, contribute to open-source with these technologies)