I applied through a recruiter. The process took 1 day. I interviewed at Spark Energy (Houston, TX) in Oct 2010
Interview
A recruiter contacted me about a software developer position at spark energy. I was scheduled to talk to the hiring manager but it was changed to a technical phone screening. All the question were "essay questions" that forced you to come up with explanations. From the interview process, they were looking for person who was strictly a developers with no experience in energy trading.
Interview questions [4]
Question 1
Explain inner join and out join to your grandmother