I'm Stefan working in the field engineering team EMEA for Neo4j for almost 7 years now. Prior to that I worked as freelancer with Neo4j - so my total experience is > 10 years. When I've used Neo4j for the first time its version number was 0.9..
That said I do have "some" experience with Neo4j. My daily work involves most advanced topics like Neo4j cluster setups and performance tuning.
For coding I mostly use Java, Groovy, Python and Shell Scripting.
Being a Linux enthusiast for +20 years I've started back in the pre 1.x kernel versions.