If you mean with detailed definitions, I do not think so. Characters from Supplement 7: 1001 Characters had following Trade specializations. No descriptions associated, just on various character skill lists:
Accountant
Advertising
Agriculture
Antiquing
Art
Art Sales
Asteroid Mining
Auctioneer
Automotive
Baking
Banking
Belter
Biochemicals
Caretaker
Chef
Chemistry
Cobbler
Comestibles
Construction
Crystal Mining
Delivery
Dock Worker
Dockhand
Doctor
Economic Advisor
Evangelism
Factory Work
Farmhand
Farming
Fashion Design
Fire Fighting
Food Preparation
Food Service
Gambler
Gourmet Cuisine
Holography
Homemaker
Housekeeping
Hunting/Gathering
Husbandry
Instructor
Janitor
Landscaping
Laundry Service
Lawyer
Luxuries
Machinist
Maintenance
Manufacturing
Massage
Mechanic
Media
Merchant
Metal Manufacturing
Milling
Mining
Mixologist
Munitions
Nursing
Painting
Postal Service
Printing
Procurement
Publishing
Real Estate
Refinery
Restaurant
Retail
Robotics
Sales
Scrap Metals
Seamstress
Secretarial
Seneschal
Ship Systems
Starport Operations
Stonemason
Stoneware
Supervisor
Tailoring
Teamster
Terraforming
Textiles
Utilities
Utility Worker
Warehousing
Waste Management
Winemaking And Brewing