“Data Scientist” is the sexiest job of the 21st century. The Harvard Business Review made this claim last October and it seems that everyone (including your grandmother) has been repeating it ever since. 

But what exactly does a data scientist do and what specifically makes her/him sexy (aside from the clout and the big paycheck)? And perhaps, as importantly, what do you have to know -- and where do you get the “stuff” that you need -- to land the hottest gig of the 21st century? 

To answer these questions, we’re providing you with an Infographic below (courtesy of FICO) and insights from some of the hottest companies in Big Data.

Data Scientist: Skills in Demand, Not Degrees

First off, there is no question that Data Scientists and Big Data Wranglers are in high demand. FICO recently reported that there was a 15,000% increase in job postings for data scientists between summer 2011 and summer 2012. Add to that that 1.5 million more data-literate managers will be needed by 2018, and you’ve got a lot of jobs.

But you won’t find many, if any, data scientists in the working world with “data scientist” on their diploma. In fact, some of the world’s most talked about data scientists didn’t know that they wanted to be data scientists when they began their careers, so getting that specific degree (and it’s doubtful that any formal data science programs existed at universities five years ago) probably isn’t key to being successful.

We did a quick perusal through the profiles of some of today’s leading data scientists to see what they were studying before they earned their fancy titles, here’s what we found: Jeff Hammerbacher and DJ Patil studied Mathematics; Hilary Mason studied Computer Science; Doug Cutting, co-founder of Hadoop, has an AB in linguistics and Jonathan Goldman one of LinkedIn’s earliest data scientists studied Physics.

And we’re pretty sure that few, if any, of these folks applied for a role as a “data scientist” when they got their first jobs, so if you’re not a data scientist right now, but you think that you’ve got what it takes to become one, there’s room for hope, and plenty of it.

Consider that some of the companies that employ the world’s most prominent data scientists aren’t even sure of exactly what a data scientist’s academic background should look like.

"The particular set of skills required to perform data science in practice is both still being defined and hard to accumulate through conventional curricula,” says Ryan Goldman, Services and Training, marketing manager, Cloudera. He adds that the data scientist role is relatively new and mainly populated by “people who are better at statistics than any software engineer and better at software engineering than any statistician,” a phrase he’s borrowed from Josh Wills, Cloudera’s Director of Data Science.

Lisa Arthur, Chief Marketing Officer at Teradata adds that a softer set of skills is required as well