Saeju Jeong might be the CEO of Noom, the weight-loss and digital health company he co-founded, but he answers to another boss: his customers. 

"We let our consumer--the end users--be our judge. Let them judge what's a good idea and what's working," says Jeong.

That approach has been crucial to Noom's strategy since its founding in 2008, he told Inc. editor-at-large Tom Foster during an Inc. streaming event on Tuesday. Noom is now valued at $4 billion and generated $400 million in revenue in 2020, and is a two-time Inc. 5000 and Best Workplaces honoree. But Jeong says it took a long time--and a lot of missteps--for the New York City-based company to develop a product that would fulfill its mission, which is to help as many people as possible lead healthier lives by changing their behavior. Watch the clips below to learn more about Jeong's entrepreneurial journey, Noom's early pivots, and the keys to its ongoing success.

On finding product-market fit:

On how to block out the noise and uncover great ideas:

On the importance of authenticity when pitching investors:

On what to look for when hiring: