Financial information provider Bloomberg will add 500 tech jobs this year. The Manhattan-based company is looking for Ruby on Rails developers, senior systems administrators, C/C++/UNIX/UI senior developers, Oracle database programmers and wireless mobile support engineers. Also, it's looking for Web architects, data center engineers and TOMS implementation specialists who will set up TOMS, the company's proprietary electronic trading service that allows clients to connect a external execution platforms. The jobs are in New York and New Jersey. Bloomberg was one of the rare companies that didn't freeze hiring during the recession. In fact, the sagging economy hardly affected its appetite for aggressive hiring. In the last two years, the company added 1,800 jobs and plans to add another 1,600 this year overall, making it the fastest growing employer in New York City. Writes Wall Street & Technology:

Over the last two years, we took a view during the turndown that it was a great opportunity for us to run some risk and to give up some growth - P&L growth, not product growth - to bring in new people," said Thomas F. Secunda, Founding Partner, Global Head of Financial Products and Services at Bloomberg. "So we added a lot of technologists, making it our biggest growth years ever. We added technologists from the Street and a lot of people out of college."

Techs who apply to Bloomberg should prepare for some corporate idiosyncrasies - such as having your whereabouts tracked electronically. And should you choose to leave, don't expect to return. Bloomberg doesn't re-hire former employees. -- Dino Londis