The biggest names in tech didn't start out at the top--they had to work their way up.
Yahoo's Marissa Mayer was a grocery store clerk. Netflix CEO Reed Hastings once sold vacuum cleaners.

Homebrew Ventures cofounder and partner Hunter Walk posed a question to his Twitter followers on Labor Day: What was your first job? A bunch of founders, CEOs, and other VCs chimed in.

For every Mark Zuckerberg founding a company in his dorm room, there are plenty of founders who got their starts at less glamorous jobs--scrubbing toilets, pumping gas, and shoveling snow, just to name a few.

Andy Weissman, a partner at VC firm Union Square Ventures, was a ball boy for the US Open.

Megan Quinn, most recently a partner at Kleiner Perkins, made pretzels.

Tristan Walker, the founder and CEO of Walker & Co., which owns men's shaving startup Bevel, worked at a summer sleepaway camp.

Nest CEO Tony Fadell started an egg delivery business when he was in third grade.

LinkedIn CEO Jeff Weiner shoveled snow.

Square CFO Sarah Friar worked on her uncle's farm.

Etsy CEO Chad Dickerson mowed lawns.

Hunter Walk, a partner at Homebrew Ventures, worked in a kids' bookstore.

Foundry Group's Brad Feld knocked down wasp's nests at a tennis club.

Quip cofounder Bret Taylor pumped gas.

This story first appeared on Business Insider