when you mention you are an engineer but you didn't mention which field you are in - software, mechanical, electrical, etc ?

my suggestion:
-sales: try to learn some basic marketing first and get your first sales, setup a simple free website to get leads and sales
-office: with 50k, can do virtual office first (either from home or co-working space)
-hr: if you want to hire technical staff 1st, maybe offer something better than salary like company share? later can buy back the share
-hr: you can get freelancer 1st, don't hire permenant/contract for the time being, hiring and people manage is a very tedious & headache process

hope the above helps