So a lot would depend on the automation of the shop. Most big shops will have specific asset class desk. Particularly difficult to get hired as an assistant to PM, but lot's of folks enter as a desk person - trading for the PMs. Anywhere near Foster City? There is a gem of a firm there called Balliard and the trading desk used to have a fair amount of turnover - plus almost nobody knows them.
So trader, assistant trader, convert trader, especially in FO community a lot would depend on your experience, but FO is huge in the Bay Area. Analyst jobs are also a great place to start again depending on the shop. Our shop just hired a young man who worked at Costco to analyze simple financials. Night desks are also big in the Bay Area as there is a lot of business done in the Asian time zones and nobody wants to work nights. Schwab asset used to be big, but it's mostly going to Texas.
The devil is in the details and a lot will depend, obviously, on the openings in the shops - your education and probably less so on your trading performance unless you can show years of it and describe your analysis a methodology. Wells and B of A have mostly moved their trading ops to NYC. Bank of The West still runs(as of a couple years ago)equity desks out of SF and Portland.
Work the Bloomberg - your part of the country used to be the biggest index and futures shops and a lot of those folks are now independent operations - often with wealthy backers. Pretty simple structure, but the SF area had a ton.
Smaller shops - IMHO - are the best - larger operations are recruiting at Stanford and Berkeley.
Converts and structured notes are big in the insurance community - so I would spend some time learning those. They have very little appetite for equities for regulatory reasons.