If you have a specific question on LArSoft, these people may be able to help. Note, as of May, 2018, the LArSoft project supported by Fermilab is being staffed by people from the SciSoft team. (The SciSoft team also provides support for art.)

Technical lead and Project Manager – Erica Snider

Lead Developer and Customer Support – Kyle Knoepfel

Software and Release Manager – Lynn Garren

Developer – Saba Sehrish

GPU Developer and Spack Migration – Marc Paterno

Infrastructure as a Service Support – Mike Wang

GENIE/Geant4  Support – Robert Hatcher

LArSoft also draws upon many people in SCD and elsewhere for help with specific issues.

You can contact the team at scisoft-team@fnal.gov or by opening a ticket.