(more mud in the water) how about something along these lines.  it's not meant to represent any particular career, the skills are just filler for now.  the idea is that as per ct the player chooses between personal, technical, and the two advanced tables, then either chooses which line in the table and rolls for the skills listed therein or rolls for which line in the table and chooses the skills listed therein.  whichever section is diced can have lines or skills repeated to reflect their greater likelihood.  this enables both randomness and choice.
PERSONAL
    Physical (Strength++, Dexterity++, Endurance++)
    Personal (Intelligence++, Education++)
    Social (Carousing, Liaison, Social Standing++, xxx, xxx, xxx)
    Combatives (Pistol, Blade, Brawling, xxx, xxx, xxx)
    xxx
    xxx
TECHNICAL
    Vehicle (cascade)
    Technical (Mechanics, Communications, Damage Control, xxx, xxx, xxx)
    Combat (Tactics, Recon, Armor, Weapons(cascade), xxx, xxx)
    xxx
    xxx
    xxx
ADVANCED
    Technical (Electronics, Mechanics, Communications, xxx, xxx, xxx)
    Combat (Tactics, Leadership, Armor, weapons(cascade), xxx, xxx)
    Gunnery (Lasers, Missiles, Sand, xxx, xxx, xxx)
    xxx
    xxx
    xxx
ADVANCED (ED 8+)
    Medical (Medical, Robotics, xxx, xxx, xxx, xxx)
    Technical (Computer, Gravitics, Robotics, Electronics, xxx, xxx)
    Flight (Pilot, Navigation, Engineering, xxx, xxx, xxx)
    Combat (Fleet Tactics, Ship Tactics, Leadership, xxx, xxx, xxx)
    Administration (Administration, Liaison, Leadership, xxx, xxx, xxx)
    xxx