Yes, “growth hacker” is an enormously overwrought buzzword. But, companies are sorely looking for people to take up the mantle and work on startup marketing. The growth hacker is essentially a scrappy, resourceful and creative marketer with a knack for attracting users. It’s a must-have role in most startups because it helps put the product in the hands of the masses and expand word-of-mouth reach. And it won’t be going away anytime soon — even if the name fizzles out in the next few years.