He’s on the front lines — of making dough.

Chelsea resident Robert Samuel has made a business off lazy New Yorkers, hanging tight for those desperate for Cronuts or the latest Apple iPhone but unwilling to wait.

“People want these things like it’s the end of the world,” Samuel, 38, told The Post. “When I show up to their offices with a sleeping bag in one hand and the Cronuts in another, they know they’re getting their money’s worth.”

Samuel rakes in up to $300 a week by lingering in the outrageous line outside Soho’s Dominique Ansel Bakery. For $60 on weekdays, he picks up two of the croissant-donut hybrids and delivers them to clients. That’s $240 for eight Cronuts — which cost $5 apiece.

He’s usually first in line when he arrives at 5 a.m., and soon has buddies who fall in line. Because there’s a two-pastry-per-person limit, he hires friends to idle in lawn chairs for larger orders.

Samuel launched his company — called SOLD Inc., or Same Ole Line Dudes — last fall after losing his job. A former AT&T salesman, Samuel posted a Craigslist ad offering to wait for the iPhone 5 for $100.

That’s when he realized line-sitting could be a part-time job. Out-of-towners have hired him to wait for “Saturday Night Live” tickets from midnight to 7 a.m. and to hold their places for concerts.