from: http://www.wallstreetoasis.com/forums/cash-traders-sales-traders-whats-the-point
Institutional Salesman- Master of relationships who know has what, who wants what, and what levels they want it.
Sales-Trader – Hybrid of sales and trading, liason between block trader and the client. Tends to work the smaller orders, trades tend to be agency. Another blogger wrote: all they do is (a) what salespeople do ie forwarding out Bloombergs and chatting to clients on stock newsflow and (b) the execution ie typing “BUY 200,000 AAPL.US LIMIT 185.00 ENTER” into the computer. The trader will then work the order.
Block Traders – Obviously they work the order
Sector sales – they know whats actually going on in the sector in day to day business. Much more trading related opposed to actualy analysis.
Country sales – Sounds like your on a bit of an international desk. Dont have any idea as to the norm for international desk break downs.
Research analyst – knows whats going on in the company but knows jack shit about how the issue is trading in the market day to day. Much more macro and very stock specific than the coverage that a salesman provides.