There is roughly 5,000 growth hacker globally. This might surprise you as that sounds too small. Let me be very specific now.
I'm talking about real growth hackers, these are guys who original techniques are rooted in black-hat strategies and have migrated to the gray area. So why does it seem so many growth hackers out there, they focus on white hat techniques that are open to the public anyone can learn and do. The gray area techniques are secrets.
Why secrets, the less people know about them the longer they work for. 99.47% of growth hacks fail for this exact reason. So the more secretive the growth hack the better it works.
So what does this mean to you, your not going to find the best guys on freelancing sites or other expert networks that are widely available.
You need to network, and find the right person by getting to know them. Why, it's because if they are going to use their gray area techniques on your company they have to trust you.
Final note, on gray area, this is legal means, but not well known to the public. These techniques push the edge of many things without breaking them.
I hope this is helpful....